HP LaserJet 5000, 5000 N and 5000 GN Printers - TKO Electronics

HP LaserJet 5000, 5000 N and 5000 GN Printers - TKO Electronics

Manual Part No. C4110-91033 Printed on at least 50%Total Recycled Fiber with at least 10% Post-Consumer Paper *C4110-91033* *C4110-91033* C4110-9103...

5MB Sizes 0 Downloads 4 Views

Manual Part No. C4110-91033

Printed on at least 50%Total Recycled Fiber with at least 10% Post-Consumer Paper

*C4110-91033* *C4110-91033* C4110-91033

HP LaserJet 5000, 5000 N and 5000 GN Printers Service Manual

Copyright© 1998 Hewlett-Packard Co. Printed in USA

English

HP LaserJet 5000, 5000 N and 5000 GN Printers Service Manual

HP LaserJet 5000, 5000 N, and 5000 GN Printers

Service Manual _____________

© Copyright Hewlett-Packard Company 1998 All Rights Reserved. Reproduction, adaptation, or translation without prior written permission is prohibited, except as allowed under the copyright laws. Publication number C4110-91033 First Edition

Warranty

Trademark Credits

The information contained in this document is subject to change without notice.

PostScript™ is a trademark of Adobe Systems Incorporated which may be registered in certain jurisdictions.

Hewlett-Packard makes no warranty of any kind with respect to this information. HEWLETT-PACKARD SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Hewlett-Packard shall not be liable for any direct, indirect, incidental, consequential, or other damage alleged in connection with the furnishing or use of this information.

Hewlett-Packard Company 11311 Chinden Boulevard Boise, Idaho 83714 U.S.A.

CompuServe™ is a U.S. trademark of CompuServe, Inc. Windows® is a U.S. registered trademarks of Microsoft Corporation. TrueType™ is a U.S. trademark of Apple Computer, Inc. ENERGY STAR® is a U.S. registered service mark of the U.S. EPA.

Contents 1 Printer Description Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Printer Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 Model and Serial Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 Site Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 Space Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7 Paper Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11 Supported Types of Paper . . . . . . . . . . . . . . . . . . . . . . . . . 1-14 Guidelines for Using Paper . . . . . . . . . . . . . . . . . . . . . . . . . 1-15 Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18 Transparencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18 Vellum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18 Envelopes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19 Card Stock and Heavy Paper . . . . . . . . . . . . . . . . . . . . . . . 1-20 Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22 Laser Safety Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22 Canadian DOC Regulations . . . . . . . . . . . . . . . . . . . . . . . . 1-22 FCC Regulations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23 Laser Statement for Finland . . . . . . . . . . . . . . . . . . . . . . . . 1-24 Toner Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25 Environmental Product Stewardship. . . . . . . . . . . . . . . . . . 1-26

2 Service Approach Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 Service Approach . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Parts and Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 Helpful Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4 Phone Numbers for Ordering . . . . . . . . . . . . . . . . . . . . . . . . 2-5 Exchange Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5 Consumables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5 Technical Assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5 Toner Cartridge Information . . . . . . . . . . . . . . . . . . . . . . . . . 2-8 Warranty Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

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Contents 1

3 Printer Operation Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 Using the Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 Control Panel Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 Control Panel Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 Control Panel Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3 Settings and Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4 Control Panel Menus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5 Information Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6 Paper Handling Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7 Print Quality Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10 Printing Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13 Configuration Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17 I/O Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24 EIO Menu (Networked Printers) . . . . . . . . . . . . . . . . . . . . . 3-27 Resets Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-29 Service Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-30 Service Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-31 Setting the Page Count, Maintenance Count, and Serial Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-31 Cold Reset Paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34 Clear Event Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34 Testing the Printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-35 Resetting the Printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-36 System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-37 MS-DOS System Configuration . . . . . . . . . . . . . . . . . . . . . 3-37 Parallel DOS Commands . . . . . . . . . . . . . . . . . . . . . . . . . . 3-37 Serial MS-DOS Commands . . . . . . . . . . . . . . . . . . . . . . . . 3-38 Printer I/O Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-39 Parallel Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-39 Serial Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-39

4 Printer Maintenance Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 Cleaning the Printer and Accessories . . . . . . . . . . . . . . . . . . . . . 4-2 Cleaning Spilled Toner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4 Preventative Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5 Reset Maintenance Count . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5 Expected Life of Components. . . . . . . . . . . . . . . . . . . . . . . . 4-5

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5 Functional Information Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 Printer Subsystems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 Power Supply System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3 AC/DC Power Distribution. . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3 Overcurrent Overvoltage Protection . . . . . . . . . . . . . . . . . . . 5-5 High Voltage Power Distribution . . . . . . . . . . . . . . . . . . . . . . 5-6 Toner Cartridge Detection. . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7 DC Controller System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7 Laser and Scanner Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8 Paper Motion Monitoring and Control . . . . . . . . . . . . . . . . . . 5-9 Solenoids, Sensors, Clutches, and Switches . . . . . . . . . . . . 5-9 Engine Test Print . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9 Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10 Formatter System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12 PowerSave . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12 Resolution Enhancement technology (REt) . . . . . . . . . . . . 5-13 EconoMode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13 Input/Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14 CPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14 Printer Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15 Random Access Memory (RAM) . . . . . . . . . . . . . . . . . . . . 5-15 DIMM Slots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16 Memory Enhancement technology (MEt) . . . . . . . . . . . . . . 5-16 Page Protect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16 PJL Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17 PML. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17 Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17 Image Formation System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-18 Toner Cartridge. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-20 Photosensitive Drum. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-21 Writing the Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-24 Developing the Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-25 Transferring the Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-26 Image Fusing/Variable Fusing Temperature. . . . . . . . . . . . 5-27 Paper Feed System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-29 Clutches and Sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-30 Printing from Tray 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-31 Printing from Tray 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-33 Printing from the Optional 500-sheet and 250-sheet Trays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-35 Paper Jam. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-37 Duplexer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-38 Paper Jam in the Duplexer . . . . . . . . . . . . . . . . . . . . . . . . . 5-44 Basic Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . 5-45

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Contents 3

6 Removing and Replacing Parts Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1 User Installable Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2 Removal and Replacement Strategy. . . . . . . . . . . . . . . . . . . . . . 6-7 Required Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7 Removing Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10 Rear Door / Rear Output Bin. . . . . . . . . . . . . . . . . . . . . . . . 6-10 Top Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12 Control Panel Overlay and Control Panel . . . . . . . . . . . . . . 6-15 Toner Cartridge Door Assembly . . . . . . . . . . . . . . . . . . . . . 6-17 Front Cover and Tray 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18 Front Cover Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-20 Face Down Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-21 Left and Right Side Covers . . . . . . . . . . . . . . . . . . . . . . . . . 6-23 Tray 1 Inner Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-24 Right and Left Corner Covers . . . . . . . . . . . . . . . . . . . . . . . 6-26 Removing Assemblies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-27 Transfer Roller Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . 6-28 Fuser. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-30 Paper Handling PCA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-31 Main Gear Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-35 Pickup Gear Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-37 Tray 1 Pickup Solenoid . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-39 Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-40 Formatter Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-41 Tray 1 Roller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-42 Tray 2 Roller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-43 Paper Feed Roller Assembly . . . . . . . . . . . . . . . . . . . . . . . 6-44 DC Controller Board and Power Supply . . . . . . . . . . . . . . . 6-47 Paper Feed Belt Assembly . . . . . . . . . . . . . . . . . . . . . . . . . 6-51 Tray 1 Shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-53 Tray 2 Shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-55 Tray 1 Lift Plate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-57 Tray 1 Separation Pad . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-58 Paper Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-59 Paper Path Detect Sensor . . . . . . . . . . . . . . . . . . . . . . . . . 6-60 Face Down Bin Full Sensor . . . . . . . . . . . . . . . . . . . . . . . . 6-61 Power Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-63 Registration Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-64 Upper Delivery Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . 6-66 Delivery Roller Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-68 Laser Scanner Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . 6-70 Main Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-71 Toner Cartridge Guides . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-72 Power Inlet Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-73

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Optional 500-sheet Tray Disassembly . . . . . . . . . . . . . . . . . . . 6-74 Tray Indicator Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-76 Left Front Corner Cover Installation . . . . . . . . . . . . . . . . . . 6-77 Paper Size Spring Assembly . . . . . . . . . . . . . . . . . . . . . . . 6-78 D-roller and Feed Roller . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-79 Gear Assembly and PCA . . . . . . . . . . . . . . . . . . . . . . . . . . 6-81 Power Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-82 Separation Roller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-83

7 Troubleshooting Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1 Troubleshooting Process. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2 Troubleshooting Process Flow . . . . . . . . . . . . . . . . . . . . . . . 7-4 Troubleshooting the Printing System . . . . . . . . . . . . . . . . . . . . . 7-6 Preliminary Operating Checks . . . . . . . . . . . . . . . . . . . . . . . 7-6 Power On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-11 Event Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-12 Printer Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-16 General Paper Path Troubleshooting . . . . . . . . . . . . . . . . . 7-41 Information Pages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-44 Image Quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-49 Interface Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . 7-77 Reference Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-80 Locations of Components . . . . . . . . . . . . . . . . . . . . . . . . . . 7-80 Sensors and Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-88 DC Controller PCA Inputs and Outputs . . . . . . . . . . . . . . 7-107

8 Parts and Diagrams Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1 How To Use the Parts Lists and Diagrams . . . . . . . . . . . . . . . . . 8-2 Accessories and Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4 Common Hardware and Replacement Cables . . . . . . . . . . . 8-6 Illustrations and Parts Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7 Alphabetical Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-39 Numerical Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-44

Index

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Contents 5

6

Contents

EN

1

Printer Description

Overview This chapter discusses the following:

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Printer Features



Identification



Site Requirements



Paper Specifications



Safety Information

Overview 1-1

Printer Features Table 1-1. Printer Features Speed

17 pages per minute (ppm), A4 paper or 16 ppm, letter paper 100 MHz RISC microprocessor First Page Out = 13 sec.

Resolution

300 dpi with PCL5e/PostScriptTM Level 2 emulation (PS) 600 dpi with PCL5e/PS HP FastRes 1200 (PCL6 only) HP ProRes 1200 (PCL6, PS)

Typefaces

110 Scalable TrueTypeTM (80 built-in, 30 via FontSmart, all PS and PCL accessible)

Memory Options

HP LaserJet 5000: 4 MB RAM standard HP LaserJet 5000 N: 8 MB RAM standard HP LaserJet 5000 GN: 12 MB RAM standard Optional Memory: 2, 4, 8, 16 MB EDO DIMMs 32 MB SDRAM DIMM

Expansion Slots

3 100-pin DIMM slots 2 enhanced I/O (EIO) slots

Interface

Bidirectional IEEE 1284 compliant parallel interface RS-232 9-pin serial Paper Handling Connector (PHC)

Optional Networking

10Base-T and 10Base-2 10/100Base-TX Token Ring LocalTalk

Mass Storage Options

2 and 4 MB Flash DIMMs

1-2 Printer Description

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Table 1-1. Printer Features (continued) Paper Trays

100-sheet Tray 1 Size: 3 by 5 in (76 by127 mm) to 12.28 by 18.5 in (312 by 470 mm) Optional 250-sheet Tray 2 supports Size: 5.8 by 8.2 in (149 by 210 mm) to 11 by 17 in (279 by 432) Optional Universal 500-sheet Tray supports standard and custom sizes from 5.8 by 8.2 in (149 by 210 mm) to 11 by 17 in (279 by 432)

Paper Path

Straight through from Tray 1 to rear output bin Or to top output bin

Output Capacity

250-sheet top output bin 50-sheet rear output bin

Paper Handling Options

Duplexer, optional 250-sheet and 500-sheet universal tray assembly

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Printer Features 1-3

Table 1-2. Comparison of HP LaserJet 5000 Series Printers HP LaserJet 5000

HP LaserJet 5000 N

HP LaserJet 5000 GN

optional

standard

standard

4

4

4

Standard RAM

4 MB internal

8 MB1

12 MB1

250-sheet Tray

1 standard 1 optional

1 standard 1 optional

1 standard 1 optional

500-sheet Universal Tray

optional

standard

standard

1.4 GB EIO Drive

optional

optional

standard

Duplexer

optional

optional

optional

not available

not available

not available

optional

standard

standard

Ethernet 10-T/ 10-2 Max. # input bins

Envelope feeder LocalTalk

1. 4 MB internal, with remainder in DIMM

1-4 Printer Description

EN

Identification Model and Serial Numbers The model number and serial numbers are listed on identification labels located on the rear left side of the printer. The serial number is alphanumeric, such as USB0000146 for the HP LaserJet 5000 N printer. The serial number contains information about the Country of Origin, the Revision Level, the Production Code, and Production Number of the printer. The rear labels also contain power rating and regulatory information as shown in Figure 1-1.

Figure 1-1

EN

Sample Labels

Identification 1-5

Site Requirements The following environmental specifications must be maintained to ensure the proper operation of the printer. Consider the following points before installing the printer: ●

Install in a well-ventilated, dust-free area.



Install on a hard, flat and continuous surface, with all four printer feet level. Do not install on carpet or other soft surfaces.



Ensure adequate power is supplied. Printer power requirements are listed in Table 1-3.



Install where temperature and humidity is stable, away from water sources, humidifiers, air conditioners, refrigerators, or other major appliances.



Install away from direct sunlight, open flames, or ammonia fumes. If the printer is placed near a window, make sure the window has a curtain or blind to block any direct sunlight.



Install with enough space around the printer for proper access and ventilation.



Install printer away from the direct flow of exhaust from air ventilation systems.

Table 1-3. Electrical Specifications Volts

Frequency

Amps

Watts (typical)

100-127 VAC±10%

50/60 Hz ±3Hz

11 amps

printing = 365 standby = 40 PowerSave On = 27 (EPA ENERGY STAR®)

220-240 VAC±10%

50/60 Hz ±3Hz

5 amps

printing = 355 standby = 40 PowerSave On = 22 (EPA ENERGY STAR®)

1-6 Printer Description

EN

Space Requirements 55 in (139.8 cm) 24.6 in (62.5 cm)

11.9 in (30.3 cm)

18.7 in (47.5 cm)

18.5 in (47.0 cm)

18.6 in (47.3 cm)

10.6 in (27.0 cm)

18.5 in (47.0 cm)

Figure 1-2

EN

4.3 in (11.0 cm)

Printer Dimensions, HP LaserJet 5000

Site Requirements 1-7

55 in (139.8 cm) 24.6 in (62.5 cm)

11.9 in (30.3 cm)

18.5 in (47.0 cm)

10.6 in (27.0 cm) 24.4 in (62.0 cm)

6.1 in (15.5 cm)

Figure 1-3

Printer Dimensions, HP LaserJet 5000 N/5000 GN

1-8 Printer Description

EN

55 in (139.8 cm) 24.6 in (62.5 cm)

11.9 in (30.3 cm)

18.5 in (47.0 cm)

6.5 in (16.6 cm)

10.6 in (27.0 cm)

29.7 in (75.5 cm)

Figure 1-4

Printer Dimensions, HP LaserJet 5000 with Accessories

Printer Weight (without toner cartridge)

EN



HP LaserJet 5000 printer: 50 lb (23 kg)



HP LaserJet 5000 N/5000 GN printers: 75 lb (34 kg)



HP LaserJet 5000 N/5000 GN printers with duplexer and optional 250-sheet feeder: 114 lb (52 kg)

Site Requirements 1-9

Environmental Requirements Table 1-4. Printer and Toner Cartridge Environmental Conditions Item

Operating

Storage

Temperature

50-91° F (10-32° C)

-4 to 140°F (-20 to 60°C)

Relative Humidity

20-80% RH (with no condensation)

10% TO 95% RH

Table 1-5. Acoustic Emissions (Per ISO 9296) Printer State

Sound Power

Printing, 16 pages per minute (ppm)

Lwad= 6.6 bels (A)

Printing, 8 ppm

Lwad= 6.3 bels (A)

PowerSave

Lwad= 4.4 bels (A)

1-10 Printer Description

EN

Paper Specifications The following tables show paper specifications for the printer. Table 1-6. Paper Specifications, Tray 1 Supported Paper

Dimensions1

Minimum Size (custom)

3 by 5 in (76 by 127 mm)

Maximum Size (custom)

12.28 by 18.5 in (312 by 470 mm)

Transparencies

Labels

Envelopes

Same as minimum and maximum paper sizes listed above.

Capacity2

Weight

16 to 53 lb (60 to 199 g/m2)

100 sheets of 20 lb (75 g m2) paper

Thickness: 0.0039 in to 0.0045 in (0.099 to 0.114 mm)

75 transparencies

Thickness: 0.005 in to 0.007 in (0.127 mm to 0.178 mm)

50 labels

20 to 28 lb (75 to 105 g/m2)

10 envelopes

1. The printer supports a wide range of paper sizes. Check the printer software for supported sizes. To print custom-size paper see the User’s Guide. 2. Capacity may vary depending on paper weight and thickness, and environmental conditions.

EN

Paper Specifications 1-11

Table 1-7. Paper Specifications, Tray 2 or Optional 250-sheet Tray Supported Paper

Dimensions1

Letter

8.5 by 11 in (216 by 279 mm)

A4

8.3 by 11.7 in (210 by 297 mm)

Executive

7.3 by 10.5 in (191 by 267 mm)

Legal

8.5 by 14 in (216 by 356 mm)

B5 (JIS)

7.2 by 10 in (182 by 257 mm)

A5

5.8 by 8.2 in (148 by 210 mm)

11 x 17

11 by 17 in (279 by 432 mm)

A3

11.7 by 16.5 in (297 by 420 mm)

B4 (JIS)

10.1 by 14.3 in (257 by 364 mm)

Weight

16 to 28 lb (60 to 105 g/m2)

Capacity2

250 sheets of 20 lb (75 g/m2) paper 50-100 transparencies

1. The printer supports a wide range of media sizes. Check the printer software for supported sizes. 2. Capacity may vary depending on media weight and thickness, and environmental conditions.

1-12 Printer Description

EN

Table 1-8. Paper Specifications, Optional 500-sheet Tray Supported Paper

Dimensions1

Letter Letter-R3

8.5 by 11 in (216 by 279 mm)

A4 A4-R3

8.3 by 11.7 in (210 by 297 mm)

Executive

7.3 by 10.5 in (191 by 267 mm)

Legal

8.5 by 14 in (216 by 356 mm)

B5 (JIS)

7.2 by 10 in (182 by 257 mm)

A5

5.8 by 8.2 in (148 by 210 mm)

11 by 17

11 by 17 in (279 by 432 mm)

A3

11.7 by 16.5 in (297 by 420 mm)

B4 (JIS)

10.1 by 14.3 in (257 by 364 mm)

Custom4

5.8 by 8.2 to 11.7 by 17 in (148 by 210 to 297 by 432 mm)

Weight

16 to 28 lb (60 to 105 g/m2)

Capacity2

500 sheets of 20 lb (75 g/m2) paper 50-100 transparencies

1. The printer supports a wide range of media sizes. Check the printer software for supported sizes. 2. Capacity may vary depending on media weight and thickness, and environmental conditions. 3. To print rotated paper see the User’s Guide. 4. To print custom-size paper see the User’s Guide.

EN

Paper Specifications 1-13

Table 1-9. Paper Specifications, Optional Duplex Printing Accessory (Duplexer) Dimensions1 Minimum Maximum

Weight

5.8 by 8.3 inches (148 by 210 mm)

16 to 28 lb (60 to 105 g/m2)

11.7 by 17 inches (297 by 432 mm)

1. The printer supports a wide range of media sizes. Check the printer software for supported sizes.

Supported Types of Paper The printer supports the following types of paper: ●

plain



preprinted



letterhead



transparency



prepunched



labels



bond



recycled



color



card stock



rough



user-defined (5 types)



vellum

1-14 Printer Description

EN

Guidelines for Using Paper For best results, use conventional 20 lb (75 g/m2) paper. Make sure the paper is of good quality and free of cuts, nicks, tears, spots, loose particles, dust, wrinkles, voids, and curled or bent edges. Some paper causes print quality problems, jamming, or damage to the printer. For more specific information, see “Image Defects” on page 7-50.

Table 1-10. Guidelines for Using Paper Symptom

Problem with Paper

Solution

Poor print quality or toner adhesion. Problems with feeding.

Too moist, too rough, too smooth, or embossed; faulty paper lot.

Try another kind of paper, between 100-250 Sheffield, 46% moisture content.

Dropouts, jamming, curl.

Stored improperly.

Store paper flat in its moistureproof wrapping.

Increased gray background shading.

Too heavy.

Use lighter paper. Open the rear output bin.

Excessive curl. Problems with feeding.

Too moist, wrong grain direction or short-grain construction.

Open the rear output bin. Use long-grain paper. Set PAPER REFORMING=ON. Set FUSER MODE=LOW.

Jamming, damage to printer.

Cutouts or perforations.

Do not use paper with cutouts or perforations.

Problems with feeding.

Ragged edges.

Use quality paper.

EN

Paper Specifications 1-15

Note

Do not use letterhead paper that is printed with low-temperature inks, such as those used in some types of thermography. Do not use raised letterhead. The printer uses heat and pressure to fuse toner to the paper. Make sure that any colored paper or preprinted forms use inks that are compatible with the printer’s temperature (392° F or 200° C for 0.1 second).

1-16 Printer Description

EN

Paper Weight Equivalence Table Use this table to determine approximate equivalent points in weight specifications other than U.S. bond weight. For example, to determine the equivalent of 20 lb U.S. bond weight paper in U.S. cover weight, locate the bond weight (in row 3, second column) and scan across the row to the cover weight (in the fourth column). The equivalent is 28 lb. Shaded areas indicate a standard weight for that grade. Table 1-11. Paper Weight Equivalence U.S. Post Card1 thickness (mm)

U.S. Bond Weight (lb)

U.S. Text/ Book Weight (lb)

U.S. Cover Weight (lb)

U.S. Bristol Weight (lb)

U.S. Index Weight (lb)

U.S. Tag Weight (lb)

Europe Metric Weight (g/m2)

Japan Metric Weight (g/m2)

1

16

41

22

27

33

37

60

60

2

17

43

24

29

35

39

64

64

3

20

50

28

34

42

46

75

75

4

21

54

30

36

44

49

80

80

5

22

56

31

38

46

51

81

81

6

24

60

33

41

50

55

90

90

7

27

68

37

45

55

61

100

100

8

28

70

39

49

58

65

105

105

9

32

80

44

55

67

74

120

120

10

34

86

47

58

71

79

128

128

11

36

90

50

62

75

83

135

135

12

.18

39

100

55

67

82

91

148

148

13

.19

42

107

58

72

87

97

157

157

14

.20

43

110

60

74

90

100

163

163

15

.23

47

119

65

80

97

108

176

176

53

134

74

90

110

122

199

199

16

1. U.S. Post Card measurements are approximate. Use for reference only.

EN

Paper Specifications 1-17

Labels CAUTION

To avoid damaging the printer, use only labels recommended for use in laser printers. If you have problems printing labels, use Tray 1 and open the rear output bin. Never print on the same sheet of labels more than once.

Label Construction When selecting labels, consider the quality of each component: ●

Adhesives: The adhesive material should be stable at 392° F (200° C), the printer’s maximum temperature.



Arrangement: Only use labels with no exposed backing between them. Labels can peel off of sheets that have spaces between the labels, causing serious jams.



Curl: Prior to printing, labels must lie flat with no more than 0.5 in (13 mm) of curl in any direction.



Condition: Do not use labels with wrinkles, bubbles, or other indications of separation.

Transparencies Transparencies used in the printer must be able to withstand 392° F (200° C), the printer’s maximum temperature. For best results, close the rear output bin to print transparencies to the top output bin. CAUTION

To avoid damaging the printer, use only transparencies recommended for use in laser printers. If you have problems printing transparencies, use Tray 1.

Vellum Vellum is special lightweight paper similar to parchment. Print vellum from Tray 1 only, and open the rear output bin. Do not print on both sides of vellum. Vellum used in the printer must be able to withstand 392° F (200° C), the printer’s maximum temperature.

1-18 Printer Description

EN

Envelopes Envelope Construction Envelope construction is critical. Envelope fold lines can vary considerably, not only between manufacturers, but also within a box from the same manufacturer. Successful printing on envelopes depends upon the quality of the envelopes. When selecting envelopes, consider the following components: ●

Weight: The weight of the envelope paper should not exceed 28 lb (105 g/m2), or jamming may result.



Construction: Prior to printing, envelopes should lie flat with less than 0.25 in (6 mm) curl, and should not contain air. (Envelopes that trap air may cause problems.)



Condition: Make sure envelopes are not wrinkled, nicked, or otherwise damaged.



Sizes in Tray 1: From 3 by 5 in (76 by 127 mm) to 12.28 by 18.5 in (312 by 470 mm).

Always print envelopes from Tray 1. To prevent envelopes from wrinkling or jamming, open the rear output bin.

Envelopes with Double-Side-Seams Double-side-seam construction has vertical seams at both ends of the envelope rather than diagonal seams. This style may be more likely to wrinkle. Be sure the seam extends all the way to the corner of the envelope as illustrated below.

Acceptable

Unacceptable

Figure 1-5

EN

Envelopes with Double-Side-Seams

Paper Specifications 1-19

Envelopes with Adhesive Strips or Flaps Envelopes with a peel-off adhesive strip or with more than one flap that folds over to seal must use adhesives compatible with the heat and pressure in the printer. The extra flaps and strips might cause wrinkling, creasing, or jams.

Envelope Margins The following table gives typical address margins for a Commercial #10 or DL envelope. Table 1-12. Envelope Margins Type of Address

Top Margin

Left Margin

Return Address

0.6 in (15 mm)

0.6 in (15 mm)

Delivery Address

2 in (51 mm)

3.5 in (89 mm)

Note

For the best print quality, position margins no closer than 0.6 in (15 mm) from the edges of the envelope.

Envelope Storage Proper storage of envelopes helps contribute to good print quality. Envelopes should be stored flat. If air is trapped in an envelope, creating an air bubble, the envelope may wrinkle during printing.

Card Stock and Heavy Paper Many types of card stock can be printed from Tray 1, including index cards and postcards. Some card stock performs better than others because its construction is better suited for feeding through a laser printer. For optimum printer performance, do not use paper heavier than 53 lb (199 g/m2) in Tray 1 or 28 lb (105 g/m2) in other trays. Paper that is too heavy might cause misfeeds, stacking problems, paper jams, poor toner fusing, poor print quality, or excessive mechanical wear. Note

Printing on heavier paper may be possible if the tray is not filled to capacity, and paper with a smoothness rating of 100-180 Sheffield is used.

1-20 Printer Description

EN

Card Stock Construction ●

Smoothness: 36-53 lb (135-199 g/m2) card stock should have a smoothness rating of 100-180 Sheffield. 16-36 lb (60-135 g/m2) card stock should have a smoothness rating of 100-250 Sheffield.



Construction: Card stock should lie flat with less than 0.2 in (5 mm) of curl.



Condition: Make sure card stock is not wrinkled, nicked, or otherwise damaged.



Sizes: Use only card stock within the following size ranges: • minimum: 3 by 5 in (76 by 127 mm) • maximum: 12.28 by 18.5 in (312 by 470 mm)

Note

Before loading card stock in Tray 1, make sure it is regular in shape and not damaged. Also, make sure the cards are not stuck together.

Card Stock Guidelines

EN



If cards curl or jam, try printing from Tray 1 and opening the rear output bin.



Set margins at least 0.08 in (2 mm) away from the edges of the paper.

Paper Specifications 1-21

Safety Information Laser Safety Statement The Center for Devices and Radiological Health (CDRH) of the U.S. Food and Drug Administration has implemented regulations for laser products manufactured since August 1, 1976. Compliance is mandatory for products marketed in the United States. The printer is certified as a “Class 1” laser product under the U.S. Department of Health and Human Services (DHHS) Radiation Performance Standard according to the Radiation Control for Health and Safety Act of 1968. Since radiation emitted inside the printer is completely confined within protective housings and external covers, the laser beam cannot escape during any phase of normal user operation. WARNING!

Using controls, making adjustments, or performing procedures other than those specified in this service manual may result in exposure to hazardous radiation.

Canadian DOC Regulations Complies with Canadian EMC Class B requirements. <>.>>

1-22 Printer Description

EN

FCC Regulations This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy. If this equipment is not installed and used in accordance with the instructions, it may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Note



Reorient or relocate the receiving antenna.



Increase separation between equipment and receiver.



Connect equipment to an outlet on a circuit different from that to which the receiver is located.



Consult your dealer or an experienced radio/TV technician.

Any changes or modifications to the printer that are not expressly approved by HP could void the user’s authority to operate this equipment. Use of a shielded interface cable is required to comply with the Class B limits of Part 15 of FCC rules.

EN

Safety Information 1-23

Laser statement for Finland Luokan 1 laserlaite Klass 1 Laser Apparat HP LaserJet 5000, 5000 N, 5000 GN -laserkirjoitin on käyttäjän kannalta turvallinen luokan 1 laserlaite. Normaalissa käytössä kirjoittimen suojakotelointi estää lasersäteen pääsyn laitteen ulkopuolelle. Laitteen turvallisuusluokka on määritetty standardin EN 60825-1 (1994) mukaisesti.

Varoitus! Laitteen käyttäminen muulla kuin käyttöohjeessa mainitulla tavalla saattaa altistaa käyttäjän turvallisuusluokan 1 ylittävälle näkymättömälle lasersäteilylle.

Varning! Om apparaten används på annat sätt än i bruksanvisning specificerats, kan användaren utsättas för osynlig laserstrålning, som överskrider gränsen för laserklass 1. HUOLTO HP LaserJet 5000, 5000 N, 5000 GN -kirjoittimen sisällä ei ole käyttäjän huollettavissa olevia kohteita. Laitteen saa avata ja huoltaa ainoastaan sen huoltamiseen koulutettu henkilö. Tällaiseksi huoltotoimenpiteeksi ei katsota väriainekasetin vaihtamista, paperiradan puhdistusta tai muita käyttäjän käsikirjassa lueteltuja, käyttäjän tehtäväksi tarkoitettuja ylläpitotoimia, jotka voidaan suorittaa ilman erikoistyökaluja.

Varo! Mikäli kirjoittimen suojakotelo avataan, olet alttiina näkymättömälle lasersäteilylle laitteen ollessa toiminnassa. Älä katso säteeseen.

1-24 Printer Description

EN

Varning! Om laserprinterns skyddshölje öppnas då apparaten är i funktion, utsättas användaren för osynlig laserstrålning. Betrakta ej strålen.

Tiedot laitteessa käytettävän laserdiodin säteilyominaisuuksista: Aallonpituus 775-795 nm Teho 5 mW Luokan 3B laser

Material Safety Data Sheet The Toner Cartridge/Drum MSDS can be obtained by calling the U.S. HP FIRST (Fax Information Retrieval Support Technology) at (1) (800) 231-9300. Use Index number 7 for a listing of the Toner Cartridge/Drum Material/Chemical Safety Data Sheets. Non-U.S. customers should refer to the support section of the User’s Guide for appropriate phone numbers and information.

EN

Safety Information 1-25

Environmental Product Stewardship Protecting the Environment Hewlett-Packard Company is committed to providing quality products in an environmentally-sound manner. The printer has been designed to minimize impacts on the environment. The printer design eliminates: Ozone Production

The printer does not use high-voltage corona wires in the electrophotographic process and therefore generates no appreciable ozone gas (O3). Instead, this printer uses charging rollers in the toner cartridge and in the print engine.

Energy Consumption

This HP LaserJet printer design reduces: Energy usage drops to as little as 21 W while in low-power (PowerSave) mode. Not only does this save natural resources, but it also saves money without affecting the high performance of this printer. This product qualifies for the ENERGY STAR Program (U.S. and Japan). ENERGY STAR is a voluntary program established to encourage the development of energy-efficient office products. ENERGY STAR is a U.S. registered service mark of the U.S. EPA. As an ENERGY STAR partner, Hewlett-Packard Company has determined that this product meets ENERGY STAR Guidelines for energy efficiency.

1-26 Printer Description

EN

2

Service Approach

Overview This chapter discusses the following:

EN



Service Approach



Parts and Supplies



Warranty Statement

Overview 2-1

Service Approach Repair of the printer normally begins with use of the printer’s internal diagnostics in conjunction with the troubleshooting procedures in Chapter 7. Once a faulty part is located, repair is generally accomplished by assembly level replacement of Field Replaceable Units (FRUs). Some mechanical assemblies may be repaired at the subassembly level. PCA component replacement is not supported by Hewlett-Packard.

2-2 Service Approach

EN

Parts and Supplies Ordering Information Field replaceable and accessory part numbers are found in Chapter 8 of this manual. Replacement parts may be ordered from HP’s Support Materials Organization (SMO) or Support Materials Europe (SME). Use only accessories specifically designed for this printer. Accessories can be ordered from an authorized service or support provider. See page 2-5 and page 8-4 for more information.

EN

Parts and Supplies 2-3

Helpful Documentation Table 2-1 lists part numbers to order documentation.

Table 2-1. Helpful Documentation Item

Description or Use

Part Number

HP LaserJet Printer Family Paper Specification Guide

A guide to using paper and other print media with HP LaserJet printers.

5021-8909

PCL 5/PJL Technical Reference Documentation Package

A guide to using printer commands with HP LaserJet printers.

5021-0330

HP LaserJet 5000, 5000 N, and 5000 GN Printers User’s Guide

An additional copy of the user’s guide.

C4110-90901 (English)

An additional copy of the HP LaserJet 5000, 5000 N, and 5000 GN Printers Getting getting started guide. Started Guide

C4110-90926 (English)

HP LaserJet 5000, 5000 N, and 5000 GN Printers Quick Reference Guide

An additional copy of the quick C4110-90976 (English) reference guide.

User’s Documentation Bundle, HP LaserJet 5000, 5000 N, and 5000 GN

An additional copy of the user’s guide, the getting started guide, and the quick reference guide.

2-4 Service Approach

C4110-99001 (English)

EN

Phone Numbers for Ordering ●

SMO (Support Materials Organization) 1-800-227-8164 (U.S. only)



SME (Support Materials Europe) (49 7031) 142253

Exchange Program HP offers remanufactured assemblies for some parts. These are identified in Chapter 8 and can be ordered through Support Materials Organization (SMO), or Support Materials Europe (SME).

Consumables Paper and Toner Cartridges can be ordered directly from HewlettPackard. See Chapter 8 for ordering information.

Technical Assistance HP ASAP (Automated Support Access Program) provides free technical support information 24 hours a day, 7 days a week. The ASAP system includes HP AUDIO-TIPS and HP FIRST, both explained below. The ASAP service 1-800-333-1917 (U.S.) requires a touchtone phone. To order additional printer drivers for software applications, call HP’s Distribution Center (HPD) 1-970-339-7009.

HP AUDIO-TIPS HP AUDIO-TIPS is an interactive voice response system providing prerecorded answers to the questions asked most frequently by HP LaserJet printer users. Helpful “System Maps” to the HP AUDIOTIPS recordings are available by fax through HP FIRST.

EN

Parts and Supplies 2-5

HP FIRST HP FIRST (Fax Information Retrieval Support Technology) is a phone-in fax service that provides technical information for HP LaserJet users as well as service personnel. Receiving a fax requires a group 3 facsimile machine or fax card. Service related information includes: ●

Service notes (HP Authorized dealers)



Application notes



Product Data Sheets



Material Safety Data Sheets (MSDS)



Typeface and accessory information



Printer support software information



Toner information



Driver request form and Software Matrix

HP FIRST, U.S. Call the HP ASAP system (1-800-333-1917) and follow the voice prompts to enter HP FIRST. HP FIRST, Europe Call HP FIRST at one of the following numbers: U.K., 0800-96-02-71 Belgium (Dutch), 078-111906 Switzerland (German), 155-1527 Netherlands, 06-0222420 Germany, 0130-810061 Austria, 0660-8128 For English service outside the above countries, call (31) 20-681-5792.

HP CompuServe Forum CompuServe™ members can download a variety of support materials including product data sheets, software application notes, and printer drivers for many popular software applications. Members may also post and reply to questions in an interactive format. To access the HP Forum, type GO HP at any prompt. For more information, or to join CompuServe, call 1-800-524-3388.

2-6 Service Approach

EN

North American Response Center (NARC) The North American Response Center (NARC) is available to assist service technicians. The NARC can be reached at 1-800-544-9976. Other Areas Outside of North America and Europe, contact your local HP sales office for assistance in obtaining technical support.

EN

Parts and Supplies 2-7

Toner Cartridge Information The Toner Cartridge is designed to simplify replacement of the major “consumable” parts. The Toner Cartridge contains the printing mechanism and a supply of toner. At 5% page coverage, a Toner Cartridge will print approximately 10,000 pages. However, a Toner Cartridge should print more pages if regularly printing pages with less coverage, such as short memos. The cartridge may print fewer pages if routinely printing dense print. Note

For best results, always use a Toner Cartridge before the expiration date stamped on the Toner Cartridge’s box.

Refilled Toner Cartridges While Hewlett-Packard does not prohibit the use of refilled Toner Cartridges during the warranty period or while the printer is under a maintenance contract, it is not recommended for the following reasons: ●

Repairs resulting from the use of refilled Toner Cartridges are not covered under Hewlett-Packard warranty or maintenance contracts.



Hewlett-Packard has no control or process to ensure that a refilled Toner Cartridge functions at the high level of reliability of a new HP LaserJet Toner Cartridge. Hewlett-Packard also cannot predict what the long term reliability effect on the printer is from using different toner formulations found in refilled cartridges.



The print quality of HP LaserJet Toner Cartridges influences the customer’s perception of the printer. Hewlett-Packard has no control over the actual print quality of a refilled Toner Cartridge.

Recycling Toner Cartridges In order to reduce waste, Hewlett-Packard offers a recycling program for used Toner Cartridges. Cartridge components that do not wear out are recycled. Plastics and other materials are recycled. HP pays the shipping costs from the user to the recycling plant. To join this recycling effort, follow the instructions inside the Toner Cartridge’s box.

2-8 Service Approach

EN

Warranty Statement This warranty gives specific legal rights. There may also be other rights which vary from area to area. Refer to the User’s Guide for further warranty information, or see the warranty card included with the printer.

EN

Warranty Statement 2-9

2-10 Service Approach

EN

3

Printer Operation

Overview This chapter discusses the following:

EN



Using the Control Panel



Control Panel Menus



Service Mode



Testing the Printer



Resetting the Printer



System Configuration



Printer I/O Configuration

Overview 3-1

Using the Control Panel Control Panel Layout The printer’s Control Panel consists of the following:

READY

2-line display

Ready

Data

Attention

Go

Menu Item - Value +

Cancel Job

Figure 3-1

Select

Control Panel Layout

Control Panel Lights Table 3-1. Control Panel Lights Light

Indication

Ready

The printer is ready to print.

Data

The printer is processing information.

Attention

Action is required. See the Control Panel display.

3-2 Printer Operation

EN

Control Panel Keys Table 3-2. Control Panel Keys Key

Function

[Go]

● ● ● ● ●



● ●

Places the printer either online or offline. Prints any data residing in the printer’s buffer. Allows the printer to resume printing after being offline. Clears most printer messages and places the printer online. Allows the printer to continue printing with an error message such as TRAY x LOAD [TYPE] [SIZE] or UNEXPECTED PAPER SIZE. Confirms a manual feed request if Tray 1 is loaded and TRAY 1 MODE=CASSETTE has been set from the Paper Handling Menu in the printer’s Control Panel. Overrides a manual feed request from Tray 1 by selecting paper from the next available tray. Exits the Control Panel menus. (To save a selected Control Panel setting, first press [Select].)

[Cancel Job]

Cancels the print job that the printer is processing. The time it takes to cancel depends on the size of the print job. (Press it only once.)

[Menu]

Cycles through the Control Panel menus. Press the right end of the button to move forward or the left end of the button to move backward.

[Item]

Cycles through the selected menu’s items. Press the right end of the button to move forward or the left end of the button to move backward.

[- Value +]

Cycles through the selected menu item’s values. Press [+] to move forward or [-] to move backward.

[Select]





EN

Saves the selected value for that item. An asterisk (*) appears next to the selection, indicating that it is the new default. Default settings remain when the printer is switched off or reset (unless you reset all factory defaults from the Resets Menu). Prints one of the printer information pages from the Control Panel.

Using the Control Panel 3-3

Settings and Defaults The printer makes most printing decisions based on either temporary settings or permanent defaults. Note

Settings sent from software applications override printer defaults.

Table 3-3. Settings and Defaults Setting or Default

Explanation

Temporary Setting

A value set for the current print job by the software application. For example, a request from the software to print three copies instead of the Control Panel default value of one copy is a temporary setting. The printer continues to use the temporary setting until it receives another software request or until it is reset.

Control Panel Default

A value set at the Control Panel when you select a menu item. An asterisk appears, indicating the default setting. The printer retains this default when it is turned off.

Factory Default

The value set for each menu item at the factory. Factory defaults are listed in the item column in the menu tables starting on page 3-6.

Setting the Display Language 1

Press and hold [Select] while turning on the printer. Hold [Select] until SELECT LANGUAGE appears.

2

Release [Select]. INITIALIZING appears briefly. Wait for LANGUAGE=ENGLISH to appear.

3

Press [- Value +] repeatedly until the desired language appears.

4

Press [Select] to save your choice. An asterisk (*) will appear beside the selected language.

5

Press [Go] to exit menu.

3-4 Printer Operation

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Control Panel Menus Press [Menu] for access to all Control Panel menus. When additional trays or other accessories are installed in the printer, new menu items automatically appear.

To change a Control Panel setting:

Note

1

Press [Menu] until the desired menu appears.

2

Press [Item] until the desired item appears.

3

Press [- Value +] until the desired setting appears.

4

Press [Select] to save the selection. An asterisk (*) appears next to the selection in the display, indicating that it is now the default.

5

Press [Go] to exit the menu.

Settings in the printer driver and software application override Control Panel settings. (Software application settings override printer driver settings.) If you cannot access a menu or item, it is either not an option for the printer, or the customer’s network administrator has locked the function. (The Control Panel reads ACCESS DENIED MENUS LOCKED.) See the customer’s network administrator.

To print a Control Panel menu map: To see the current settings for all of the menus and items available in the Control Panel, print a Control Panel menu map.

EN

1

Press [Menu] until INFORMATION MENU appears.

2

Press [Item] until PRINT MENU MAP appears.

3

Press [Select] to print the menu map.

Control Panel Menus 3-5

Information Menu This menu contains printer information pages that give details about the printer and its configuration. To print an information page, scroll to the desired page and press [Select]. Table 3-4. Information Menu Item

Explanation

PRINT MENU MAP

The menu map shows the layout and current settings of the Control Panel menu items.

PRINT CONFIGURATION

The Configuration Page shows the printer’s current configuration. If an HP JetDirect print server card is installed (HP LaserJet 5000 N/5000 GN printers), a JetDirect Configuration Page will print out as well.

PRINT PCL FONT LIST

The PCL font list shows all the PCL fonts currently available to the printer.

PRINT PS FONT LIST

The PS font list shows all the PS fonts currently available to the printer.

PRINT FILE DIRECTORY

This item appears only when a mass storage device (such as an optional flash DIMM or hard disk) containing a recognized file system is installed in the printer. The file directory shows information for all installed mass storage devices.

PRINT EVENT LOG

The event log lists printer events or errors.

SHOW EVENT LOG

This item allows you to view the most recent printer events on the Control Panel display. Press [-Value+] to scroll through the event log entries.

PRINT PAPER PATH TEST

The paper path test can be used to verify that the paper path is working properly, or to troubleshoot problems with a type of paper. Choose the input tray, output bin, duplexer (if available), and number of copies.

3-6 Printer Operation

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Paper Handling Menu When paper handling settings are correctly configured through the Control Panel, you can print by choosing the type and size of paper from the printer driver or software application. Some items in this menu (such as duplex and manual feed) can be accessed from a software application, or from the printer driver (if the appropriate driver is installed). Printer driver and software application settings override Control Panel settings. Table 3-5. Paper Handling Menu Item

Values

Explanation

TRAY 1 MODE= FIRST

FIRST CASSETTE

Determine how the printer will use Tray 1. FIRST: If paper is loaded in Tray 1, the printer will pull paper from that tray first. CASSETTE: A paper size must be assigned to Tray 1 using the TRAY 1 SIZE option (the next item in this menu when TRAY 1 MODE=CASSETTE). This allows Tray 1 to be used as a reserved tray.

TRAY 1 SIZE= LETTER

For supported paper types see page 1-14.

This item appears only when TRAY 1 MODE= CASSETTE. Set the value to correspond with the paper size currently loaded in Tray 1.

TRAY 1 TYPE= PLAIN

For supported paper types see page 1-14.

This item appears only when TRAY 1 MODE= CASSETTE. Set the value to correspond with the paper type currently loaded in Tray 1.

TRAY 2 TYPE= PLAIN

For supported paper types see page 1-14.

Set the value to correspond with the paper type currently loaded in Tray 2.

TRAY 3 TYPE= PLAIN

For supported paper types see page 1-14.

This item appears only when a third paper tray is installed. Set the value to correspond with the paper type currently loaded in Tray 3.

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Control Panel Menus 3-7

Table 3-5. Paper Handling Menu (continued) Item

Values

Explanation

TRAY 4 TYPE= PLAIN

For supported paper types see page 1-14.

This item appears only when a fourth paper tray is installed. Set the value to correspond with the paper type currently loaded in Tray 4.

MANUAL FEED=OFF

OFF ON

Feed the paper manually from Tray 1, rather than automatically from a tray. When MANUAL FEED=ON and Tray 1 is empty, the printer goes offline when it receives a print job and displays MANUALLY FEED [PAPER SIZE].

DUPLEX=OFF

OFF ON

This item appears only when an optional duplexer is installed. Set the value to ON to print on both sides (duplex) or OFF to print on one side (simplex) of a sheet of paper.

BINDING= LONG EDGE

LONG EDGE SHORT EDGE

This item appears only when an optional duplexer is installed and the duplex option is on. Choose the binding edge when duplexing (printing on both sides of paper).

OVERRIDE A4 WITH LETTER=NO

NO YES

Choose YES to print on letter size paper when an A4 job is sent, but no A4 size paper is loaded in the printer (or to print on A4 size paper when a letter job is sent, but no letter paper is loaded in the printer).

3-8 Printer Operation

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Table 3-5. Paper Handling Menu (continued) Item

Values

CONFIGURE FUSER MODE NO MENU=NO YES

Explanation Configure the fuser mode associated with each paper type. (This is only necessary if you are experiencing problems printing on certain paper types.) NO: The fuser mode menu items are not accessible. YES: Additional items appear (see below).

Note To see the default fuser mode for each paper type, select YES, scroll back to the Information Menu, and print a menu map (page 3-6).

[TYPE]= NORMAL

NORMAL LOW HIGH VELLUM

This item appears only when

CONFIGURE FUSER MODE MENU=YES. Most paper types are set to NORMAL by default. ROUGH=HIGH VELLUM=VELLUM For a complete list of supported paper types, see page 1-14.

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Control Panel Menus 3-9

Print Quality Menu Some items in this menu can be accessed from a software application, or from the printer driver (if the appropriate driver is installed). Printer driver and software application settings override Control Panel settings. Table 3-6. Print Quality Menu Item

Values

Explanation

RESOLUTION= FASTRES 1200

300 600 FASTRES 1200 PRORES 1200

Select the resolution from the following values: 300: Produces draft print quality at the printer’s maximum speed (16 ppm). 300 dpi (dots per inch) is recommended for some bitmapped fonts and graphics, and for compatibility with the HP LaserJet III family of printers. 600: Produces high print quality at the printer’s maximum speed (16 ppm). FASTRES 1200: Produces optimum print quality (comparable to 1200 dpi) at the printer’s maximum speed (16 ppm). PRORES 1200: Produces optimum print quality (true 1200 dpi) at half the printer’s maximum speed (8 ppm). When the resolution is changed, any downloaded resources (such as fonts or macros) will need to be downloaded again, unless they are stored on an optional hard disk or flash DIMM.

Note It is best to change the resolution from the printer driver or software application. (Driver and software settings override Control Panel settings.)

3-10 Printer Operation

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Table 3-6. Print Quality Menu (continued) Item

Values

Explanation

RET=MEDIUM

OFF LIGHT MEDIUM DARK

Use the printer’s Resolution Enhancement technology (REt) setting to produce print with smooth angles, curves, and edges. REt does not affect print quality when the print resolution is set to ProRes 1200. All other print resolutions, including FastRes 1200, benefit from REt.

Note It is best to change the REt setting from the printer driver or software application. (Driver and software settings override Control Panel settings.)

ECONOMODE=OFF

OFF ON

Turn EconoMode on (to save toner) or off (for high quality). EconoMode creates draftquality printing by reducing the amount of toner on the printed page by up to 50%.

Caution HP does not recommend fulltime use of EconoMode. (If EconoMode is used full-time, it is possible that the toner supply will outlast the mechanical parts in the Toner Cartridge.)

Note It is best to turn EconoMode on or off from the printer driver or software application. (Driver and software settings override Control Panel settings.)

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Control Panel Menus 3-11

Table 3-6. Print Quality Menu (continued) Item

Values

Explanation

TONER DENSITY=3

1 2 3 4 5

Lighten or darken the print on the page by changing the toner density setting. The settings range from 1 (light) to 5 (dark), but the default setting of 3 usually produces the best results. Use a lower toner density setting to save toner.

Note It is best to change the toner density from the printer driver or software application. (Driver and software settings override Control Panel settings.)

CREATE CLEANING PAGE

No value to select.

Press [Select] to print a cleaning page (for cleaning excess toner from the paper path). In order for the cleaning page to work properly, print the page on copier grade paper (not bond or rough paper). Follow the instructions on the cleaning page.

PROCESS CLEANING PAGE

No value to select.

This item appears only after a cleaning page has been generated (as described above). Press [Select] to process the cleaning page.

3-12 Printer Operation

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Printing Menu Some items in this menu can be accessed from a software application, or from the printer driver (if the appropriate driver is installed). Printer driver and software application settings override Control Panel settings. Table 3-7. Printing Menu Item

Values

Explanation

COPIES=1

1 to 999

Set the default number of copies by selecting any number from 1 to 999. Press [-Value+] once to change the setting by increments of 1, or hold down [-Value+] to scroll by increments of 10.

Note It is best to set the number of copies from the printer driver or software application. (Driver and software settings override Control Panel settings.)

PAPER= LETTER

For supported paper sizes see page 1-11.

(110 V printers) and

ENVELOPE= COM10

Note

(110 V printers)

CONFIGURE CUSTOM PAPER=NO

Set the default image size for paper and envelopes. (The item name will change from paper to envelope as you scroll through the available sizes.) The defaults indicated here are for 110 V printers. The default paper size for 220 V printers is A4. The default envelope size for 220 V printers is DL.

NO YES

NO: The custom paper menu items are not accessible.

YES: The custom paper menu items appear (see the next item).

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Control Panel Menus 3-13

Table 3-7. Printing Menu (continued) Item

Values

Explanation

UNIT OF MEASURE=INCHES

INCHES MILLIMETERS

This item appears only when

(110 V printers) or

measurement for the custom paper size.

MILLIMETERS (220 V printers)

X DIMENSION= 12.28 INCHES (110 V printers) or

312 MILLIMETERS

CONFIGURE CUSTOM PAPER=YES. Select the unit of

3.00 to 12.28 INCHES

This item appears only when

(110 V printers) or 76 to 312 MILLIMETERS (220 V printers)

CONFIGURE CUSTOM PAPER=YES. Select the dimension to be fed into the printer (short edge).

(220 V printers)

Y DIMENSION= 18.50 INCHES (110 V printers) or

470 MILLIMETERS

5.00 to 18.50 INCHES

This item appears only when

(110 V printers) or 127 to 470 MILLIMETERS (220 V printers)

CONFIGURE CUSTOM PAPER=YES. Select the other dimension (long edge).

(220 V printers)

ORIENTATION= PORTRAIT

PORTRAIT LANDSCAPE

Determine the default orientation of print on the page.

Note It is best to set the page orientation from the printer driver or software application. (Driver and software settings override Control Panel settings.)

FORM=60 LINES (110 V printers) or

64 LINES (220 V printers)

3-14 Printer Operation

5 to 128

Sets vertical spacing from 5 to 128 lines for default paper size. Press [-Value+] once to change the setting by increments of 1, or hold down [-Value+] to scroll by increments of 10.

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Table 3-7. Printing Menu (continued) Item

Values

Explanation

PCL FONT SOURCE=INTERNAL

INTERNAL SOFT SLOT 1, 2, or 3

INTERNAL: Internal fonts. SOFT: Permanent soft fonts. SLOT 1, 2, or 3: Fonts stored in one of the three DIMM slots.

PCL FONT NUMBER=0

0 to 999

The printer assigns a number to each font and lists them on the PCL Font List. The font number appears in the Font # column of the printout.

PCL FONT PITCH= 10.00

0.44 to 99.99

This item might not appear, depending on the font selected. Press [-Value+] once to change the setting by increments of .01 for pitch, or hold down [-Value+] to scroll by increments of 1.

PC-8

Select any one of several available symbol sets from the printer’s control panel. A symbol set is a unique grouping of all the characters in a font. PC-8 or PC-850 is recommended for line draw characters. Order the PCL 5/ PJL Technical Reference Documentation Package for symbol set charts or for more information see the user’s guide.

PCL SYMBOL SET=PC-8

EN

many others

Control Panel Menus 3-15

Table 3-7. Printing Menu (continued) Item

Values

Explanation

COURIER=REGULAR

REGULAR DARK

Select the version of Courier font to use: REGULAR: The internal Courier font available on the HP LaserJet 4 series printers. DARK: The internal Courier font available on the HP LaserJet III series printers. Both fonts are not available at the same time.

WIDE A4=NO

NO YES

The Wide A4 setting changes the number of characters that can be printed on a single line of A4 paper. NO: Up to 78 10-pitch characters can be printed on one line. YES: Up to 80 10-pitch characters can be printed on one line.

APPEND CR TO LF= NO

NO YES

Select YES to append a carriage return to each line feed encountered in backwardcompatible PCL jobs (pure text, no job control). Some environments, such as UNIX, indicate a new line using only the line feed control code. This option allows the user to append the required carriage return to each line feed.

PRINT PS ERRORS=OFF

OFF ON

Select ON to print the PS error page when PS errors occur.

3-16 Printer Operation

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Configuration Menu Items in this menu affect the printer’s behavior. Configure the printer according to your printing needs. Table 3-8. Configuration Menu Item

Values

Explanation

POWERSAVE= 30 MINUTES

OFF 15 MINUTES 30 MINUTES 1 HOUR 2 HOURS 3 HOURS

Set the printer to enter PowerSave after it has been idle for a specified amount of time. Turning PowerSave off is not recommended. The PowerSave feature does the following: 1. Minimizes the amount of power consumed by the printer when it is idle. 2. Reduces wear on the printer’s electronic components. (Turns off the display’s backlight.) When you send a print job, press a Control Panel key, open a paper tray, or open the top cover, the printer automatically comes out of PowerSave mode.

Note PowerSave turns off the backlight on the display, but the display is still readable.

PERSONALITY= AUTO

EN

AUTO PCL PS

Select the default printer language (personality). Possible values are determined by which valid languages are installed in the printer. Normally you should not change the printer language (the default is AUTO). If you change it to a specific printer language, the printer will not automatically switch from one language to another unless specific software commands are sent to the printer.

Control Panel Menus 3-17

Table 3-8. Configuration Menu (continued) Item

Values

RESOURCE SAVE= OFF

OFF ON AUTO

PCL MEMORY= 400K

0K and up

3-18 Printer Operation

Explanation

Dedicate printer memory to save each language’s permanent resources. (You might need to add memory to the printer in (8 MB total is required to order for this item to appear.) The amount of memory set aside can be different for see this message.) each installed language. Some languages might have memory set aside for resource saving without requiring all languages to do so. Any time the amount of memory dedicated to a specific language is changed, all languages will lose all saved resources, including any unprocessed print jobs. OFF: No language resource saving is performed, and language-dependent resources, such as fonts and macros, are lost when language or resolution changes. ON: An item will appear for each installed language that allows the user to allocate a particular amount of memory to that language’s resource saving area. (See the items below.) AUTO: The printer automatically determines the amount of memory to use for each installed language’s resource saving area.

(This value depends on the amount of installed memory. 8 MB total is required to see this message.)

This item appears only when RESOURCE SAVE=ON. Select the amount of memory used for saving PCL resources. Printer default is the minimum amount of memory needed to perform resource saving for PCL. Press [-Value+] to change settings by increments of 10 (up to 100 KB) or by increments of 100 (above 100 KB).

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Table 3-8. Configuration Menu (continued) Item

Values

Explanation

PS MEMORY= 400K

0K and up (This value depends on the amount of installed memory. 8 MB total is required to see this message.)

This item appears only when RESOURCE SAVE=ON. Select the amount of memory used for saving PS resources. Printer default is the minimum amount of memory needed to perform resource saving for PS. Press [-Value+] to change settings by increments of 10 (up to 100 KB) or by increments of 100 (above 100 KB).

PAGE PROTECT= AUTO

AUTO ON

This item appears only after a 21 PAGE TOO COMPLEX, PRESS GO TO CONTINUE message displays. Memory Enhancement technology (MEt) attempts to guarantee that all pages will print. If the page does not print, turn PAGE PROTECT to ON. This might increase chances of a 20 INSUFFICIENT

MEMORY, PRESS GO TO CONTINUE message. If this occurs, simplify the print job or install additional memory.

CLEARABLE WARNINGS=JOB

EN

JOB ON

Set the amount of time that a clearable warning is displayed on the printer’s Control Panel. JOB: Warning messages display on the Control Panel until the end of the job from which they were generated. ON: Warning messages display on the Control Panel until [Go] is pressed.

Control Panel Menus 3-19

Table 3-8. Configuration Menu (continued) Item

Values

Explanation

AUTO CONTINUE= ON

ON OFF

Determine how the printer reacts to errors. ON: If an error occurs that prevents printing, the message will display, and the printer will go offline for 10 seconds before returning online. OFF: If an error occurs that prevents printing, the message will remain on the display and the printer will remain offline until [Go] is pressed. If the printer is on a network, you will probably want to turn AUTO CONTINUE to ON.

TONER LOW=CONTINUE

CONTINUE STOP

Determine how the printer behaves when toner is low. The TONER LOW message will first appear when the Toner Cartridge is almost out of toner. (About 100 to 300 sheets can still be printed.) CONTINUE: The printer will continue to print while the TONER LOW message is displayed. STOP: The printer will go offline and wait for further action.

3-20 Printer Operation

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Table 3-8. Configuration Menu (continued) Item

Values

Explanation

MOPIER MODE=STANDARD

STANDARD ENHANCED OFF

Determine how the mopier functions behave. This item appears only when there is at least 8 MB of memory or an optional hard disk is installed. STANDARD: This option is available if there is either a hard disk installed or a RAM disk configured in memory. This option uses I/O data stored in printer memory for generating multiple original prints. (All copies will print at the same speed as the first copy.) ENHANCED: This option is available if there is a hard disk installed and at least 8 MB of memory. This option uses engine video data for printing multiple original prints and should print all copies after the first at the printer’s maximum speed. OFF: Disables the mopier functions. (The printer will not spool any jobs to the hard disk.) When the mopier mode is changed, any downloaded resources (such as fonts or macros) will need to be downloaded again, unless they are stored on an optional hard disk or flash DIMM.

RAM DISK=OFF

OFF ON AUTO

Determine how the RAM disk is configured. This item appears only if there is no optional hard disk installed and the printer has at least 8 MB of memory. OFF: The RAM disk is disabled. ON: The RAM disk is enabled. Configure the amount of memory to be used through the following item: RAM DISK SIZE.

Note If the setting is changed from OFF to ON or from OFF to AUTO, the printer will automatically reinitialize when it becomes idle.

EN

Control Panel Menus 3-21

Table 3-8. Configuration Menu (continued) Item

Values

RAM DISK SIZE=xxxK

0K and up

Explanation

Determine the size of the RAM disk. This (This value depends on item appears if RAM DISK=ON or AUTO. the amount of installed Press [-Value+] to change settings by memory.) increments of 100.

Note This setting cannot be changed if RAM DISK=AUTO. Changing this value will cause the printer to reinitialize when it becomes idle.

JAM RECOVERY= AUTO

AUTO ON OFF

Determine how the printer behaves when a paper jam occurs. AUTO: The printer automatically selects the best mode for printer jam recovery (usually ON). This is the default setting. ON: The printer automatically reprints pages after a paper jam is cleared. OFF: The printer does not reprint pages following a paper jam. Printing performance might be increased with this setting.

PAPER REFORMING=OFF

OFF ON

Paper reforming has two main purposes: 1. To reduce jams, wrinkles, and bent corners when printing on both sides of a sheet of paper (duplexing). 2. To reduce bent corners and wrinkles when printing on one side of a sheet of narrow media (such as legal, rotated letter, or rotated A4). Print speed will be slower when PAPER REFORMING=ON.

3-22 Printer Operation

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Table 3-8. Configuration Menu (continued) Item

Values

Explanation

MAINTENANCE MESSAGE=OFF

OFF

This item appears only after the PERFORM PRINTER MAINTENANCE message displays.

OFF: The PERFORM PRINTER MAINTENANCE message will be cleared and will not be displayed again until the next maintenance is due. The message should not be turned off unless the printer maintenance has been performed. If the required maintenance is not performed, the printer’s performance will degrade.

SMALL PAPER SPEED=NORMAL

EN

NORMAL SLOW

Select SLOW when alternately printing envelopes or small paper and standard paper sizes. Be sure to return the speed to NORMAL when finished.

Control Panel Menus 3-23

I/O Menu Items in the I/O (input/output) Menu affect the communication between the printer and the computer. Table 3-9. I/O Menu Item

Values

Explanation

I/O TIMEOUT=15

5 to 300

Select the I/O timeout period in seconds. (I/O timeout refers to the time, measured in seconds, that the printer waits before ending a print job.) This setting allows you to adjust timeout for best performance. If data from other ports appear in the middle of your print job, increase the timeout value. Press [- Value +] once to change settings by increments of 1, or hold down [- Value +] to scroll by increments of 10.

I/O BUFFER=AUTO

AUTO ON OFF

Allocate memory for I/O buffering. AUTO: The printer automatically reserves memory for I/O buffering. Additional configurations are not required and the I/O BUFFER SIZE menu item does not appear. ON: The I/O BUFFER SIZE item appears (see below). Specify the amount of memory to be used for I/O buffering. OFF: I/O buffering is not performed and the I/O BUFFER SIZE item does not appear. When the I/O buffer setting is changed, any downloaded resources (such as fonts or macros) will need to be downloaded again, unless they are stored on an optional hard disk or flash DIMM.

3-24 Printer Operation

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Table 3-9. I/O Menu (continued) Item

Values

Explanation

I/O BUFFER SIZE= 100K

10K and up

This item appears only when I/O BUFFER=ON. Specify the amount of memory for I/O buffering. The maximum amount of memory available for I/O buffering is determined by the amount of memory installed in the printer, the languages installed in the printer, and by other memory allocations that must be made. Press [-Value +] to change settings by increments of 10 (up to 100 KB) or by increments of 100 (above 100 KB).

PARALLEL HIGH SPEED=YES

YES NO

Select the speed at which data is transmitted to the printer. YES: The printer accepts faster parallel communications used for connections with newer computers. NO: The printer accepts slower parallel communications used for connections with older computers.

PARALLEL ADV FUNCTIONS=ON

ON OFF

Turn the bidirectional parallel communication on or off. The default is set for a bidirectional parallel port (IEEE-1284). This setting allows the printer to send status readback messages to the computer. (Turning on the parallel advanced functions might slow language switching.)

SERIAL PACING=DTR/ DSR

DTR/DSR XON/XOFF

Select the type of pacing used. Pacing, or “handshaking” allows the printer to tell the computer when to send information. The printer uses XON/XOFF and DTR/DSR signal protocols rather than ETX/ACK protocol. DTR/DSR: Select this value if your computer requires hardware flow control (most personal computers do). XON/XOFF: Select this value if your computer requires software flow control (a UNIX workstation, for example). The SERIAL ROBUST XON item appears (see below).

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Control Panel Menus 3-25

Table 3-9. I/O Menu (continued) Item

Values

Explanation

SERIAL ROBUST XON=ON

ON OFF

This item appears only when SERIAL PACING=XON/XOFF. Select the method for generating XONs. ON: The printer sends an XON when the printer is online and when sufficient buffer space is available. If the host does not receive data within approximately one second, the printer will transmit additional XONs at one-second intervals until the host receives data. OFF: The printer sends one XON when it can accept more data or when it is online. The printer does not send XONs every second while the printer is online and ready for more data.

SERIAL BAUD RATE=9600

300 600 1200 2400 4800 9600 19200 38400 57600 115200

Select the printer’s baud rate (speed at which information is transferred) for communicating from the computer to the printer.

SERIAL DTR POLARITY=HIGH

HIGH LOW

Determine whether pin #8 is high or low when the printer is ready. HIGH: Pin #8 is held high when the printer is ready. LOW: Pin #8 is held low when the printer is ready.

3-26 Printer Operation

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EIO Menu (Networked Printers) EIO (Enhanced Input/Output) Menus depend on the particular accessory product installed in an EIO slot of the printer. If the printer contains an HP JetDirect print server EIO card, you can configure basic networking parameters using the EIO Menu. These and other parameters can also be configured through HP JetAdmin. Table 3-10. EIO Menu Item

Values

Explanation

CFG NETWORK=NO

NO YES

NO: The JetDirect Menu is not accessible. YES: The JetDirect Menu appears.

NOVELL=ON

ON OFF

Select whether the IPX/SPX protocol stack (in Novell NetWare networks, for example) is enabled (on) or disabled (off).

DLC/LLC=ON

ON OFF

Select whether the DLC/LLC protocol stack is enabled (on) or disabled (off).

TCP/IP=ON

ON OFF

Select whether the TCP/IP protocol stack is enabled (on) or disabled (off).

ETALK=ON

ON OFF

Select whether the Apple EtherTalk protocol stack is enabled (on) or disabled (off).

CFG NOVELL=NO

NO YES

NO: The IPX/SPX Menu is not accessible. YES: The IPX/SPX Menu appears. In the IPX/ SPX Menu, you can specify the frame type parameter used on your network. The default is AUTO, to automatically set and limit the frame type to the one detected. For Ethernet cards, frame type selections include EN_8023, EN_II, EN_8022, EN_SNAP. For Token Ring cards, frame type selections include TR_8022, TR_SNAP. In the IPX/SPX Menu for Token Ring cards, you can also specify NetWare Source Routing parameters, which include SRC RT=AUTO (default), OFF, SINGLE R, or ALL RT.

EN

Control Panel Menus 3-27

Table 3-10. EIO Menu (continued) Item

Values

Explanation

CFG TCP/IP=NO

NO YES

NO: The TCP/IP Menu is not accessible. YES: The TCP/IP Menu appears. In the TCP/ IP Menu, you can specify BOOTP=YES for TCP/IP parameters to be automatically loaded from a bootp or DHCP server when the printer is turned on. If you specify BOOTP=NO, you can manually set selected TCP/IP parameters from the Control Panel. You can manually set each byte of the IP address (IP), Subnet Mask (SM), Syslog Server (LG), and Default Gateway (GW). Also, you can manually set the Timeout time period.

Note If no IP address is assigned within the first 5 minutes, the HP JetDirect print server card will assume a default IP address of 192.0.0.192.

CFG ETALK=NO

NO YES

NO: The EtherTalk Menu is not accessible. YES: The EtherTalk Menu appears. In the EtherTalk Menu you can set the AppleTalk phase parameter (ETALK PHASE=1 or 2) for your network.

3-28 Printer Operation

EN

Resets Menu Use this menu with caution. You can lose buffered page data or printer configuration settings when you select these items. Only reset the printer under the following circumstances: ●

You want to restore the printer’s default settings.



Communication between the printer and computer has been interrupted.



You are using both the serial and parallel I/O ports, and one of the ports is having problems.

The items in the Resets Menu will clear all memory in the printer, while [Cancel Job] clears only the current job. Table 3-11. Resets Menu Item

Explanation

RESET MEMORY

This item clears the printer buffer and the active I/O input buffer, and makes the Control Panel defaults current. The DATA RECEIVED message might display on the Control Panel. Resetting memory during a print job can result in data loss.

RESTORE FACTORY SETTINGS

This item performs a simple reset and restores most of the factory (default) settings. This item also clears the input buffer for the active I/O. The DATA RECEIVED message might display on the printer’s Control Panel.

RESET ACTIVE I/O CHANNEL

This item performs a simple reset and clears the input and output buffers (for the active I/Os only). The DATA RECEIVED message might display on the printer’s Control Panel.

RESET ALL I/O CHANNELS

This item performs a simple reset and clears the input and output buffers for all I/Os.

EN

Control Panel Menus 3-29

Service Mode Service Mode should be used only by authorized service personnel. While in Service Mode, you can: ●

Verify and set the page count and serial number. These are displayed on the Configuration Page.



Set the Cold Reset Default. (This sets the factory default paper size to either Letter or A4).



Turn the Diagnostic Functions on or off (for developers only).



Clear the event log.



Set the interval at which the PERFORM PRINTER MAINTENANCE message appears on the control panel.

To enter Service Mode: 1

Hold down [Select] and [Cancel Job] while turning on the printer. (If the control panel reads INITIALIZING, the keys were released too soon.)

2

Press the right side of the [Menu] key, then press [Select]. The message SERVICE MODE is displayed. To exit the Service Mode press [Go].

3-30 Printer Operation

EN

Service Menu

Figure 3-2

Service Menu

Setting the Page Count, Maintenance Count, and Serial Number The page count and serial numbers are stored in Non-Volatile Memory. If it is necessary to replace the Formatter PCA, the page count should be set to the current value to reflect the age of the print engine. The procedure for setting the serial number is similar to setting the page count. Note

EN

Before replacing the Formatter PCA, print a Configuration Page to verify the current page count and serial number of the printer, if possible. Use the information on the Configuration Page to reset the page count and serial number for the new Formatter PCA.

Service Mode 3-31

Page Count The page count stored in NVRAM and displayed on the Configuration Page printout represents the number of pages which the printer has printed (excluding engine test prints). If it becomes necessary to repair a printer by installing a new Formatter, the page count must be reset so that it represents the age of the printer’s engine rather than the age of the Formatter. The page count value is changed using a different method than is used for other control panel values. Instead of increasing the entire value by increments, each digit can be selected and modified individually. The following control panel keys are used to modify the page count value:

[Select]

[Value+]

[-Value]

Enters any changes to the current digit and advances the cursor one digit to the right. If the last digit is currently selected, pressing the [Select] key wraps the cursor around to the first digit. Increases the value of the currently selected digit by one. Pressing [Value+] when 9 is the value of the currently selected digit will change the value of the digit to 0. Decreases the value of the currently selected digit by one. Pressing [-Value] when 0 is the value of the currently selected digit will change the value of the digit to 9.

Table 3-12 shows the sequence of keystrokes used to change the page count from a value of 000000 to a value of 0010480.

3-32 Printer Operation

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Table 3-12. Changing the Page Count Key Press

Display

Description

SERVICE MODE [Menu+]

SERVICE MENU

[Item+]

PAGES=0000000 *

Enter the SERVICE MENU. Advance to the first item in the SERVICE

MENU. [Select]

PAGES=0000000 *

Advance the cursor one digit to the right.

[Select]

PAGES=0000000 *

Advance the cursor one digit to the right.

[Value+]

PAGES=0010000 *

Increase the value of the third digit by one.

[Select]

PAGES=0010000 *

Enter the change to the third digit and advance the cursor one digit to the right.

[Select]

PAGES=0010000 *

Advance the cursor one digit to the right.

[Value+]

PAGES=0010400 *

Increase the value of the fifth digit by four.

[Select]

PAGES=0010400 *

Enter the change to the fifth digit and advance the cursor one digit to the right.

[-Value]

PAGES=0010480 *

Decrease the value of the sixth digit by two.

PAGES=0010480 *

(2 presses)

Enter the change to the sixth digit and advance the cursor one digit to the right causing the cursor to wrap around to the first digit.

[Go]

To exit.

(4 presses)

(2 presses)

[Select]

EN

Service Mode 3-33

Maintenance Page Count The maintenance page count should be reset only after a maintenance kit has been installed. This will reset the maintenance counter so that the message PERFORM PRINTER MAINTENANCE will display another 150,000 pages later (default). ●

Hold down the [Item-] and [Value-] keys.



Turn the printer on.



Wait for RESET MAINTENANCE COUNT to be displayed and then release both keys.

MAINTENANCE COUNT in the Service Mode Menu sets the page count interval at which the next service is due for the printer. This is set initially at the factory to 150,000 pages. (For example, the message displays at 150,000 pages. If the Printer Maintenance Kit is installed at 150,114 pages, the message displays 150,000 pages later, at 300,114 pages.) Editing this number is similar to editing the PAGES item above.

Serial Number If a Formatter is replaced, then the serial number must be reentered. Editing this number is similar to editing the PAGES item above.

Cold Reset Paper The default paper size is stored in NVRAM and when the printer is cold reset, the default paper size is set to the factory setting. Possible values are COLD RESET PAPER=LETTER and COLD RESET PAPER=A4. When replacing the Formatter in countries that use A4 rather than letter size paper, set the cold reset paper size to A4.

Diagnostics This menu item enables or disables the use of the firmware diagnostic features. Possible values are DIAGNOSTICS=OFF* and DIAGNOSTICS=ON. Note

For developers only.

Clear Event Log This item allows the internal event log to be cleared. 3-34 Printer Operation

EN

Testing the Printer When you print a Configuration Page, the printer checks its internal controller and I/O interface, and then prints a test page. You can review the Configuration Page printout to verify proper installation of such options as paper trays or printer languages. For more information, see page 7-45.

Engine Test The engine test print can be used to verify that the print engine is functioning correctly. For more information, see page 7-9.

EN

Testing the Printer 3-35

Resetting the Printer Cold Reset Cold Reset clears all data from the printer memory and sets all the defaults back to the factory settings. CAUTION

Performing a Cold Reset resets the JetDirect configuration. To avoid making changes to your configuration, remove the JetDirect card before performing a cold reset. If possible, print a Configuration Page prior to performing a Cold Reset. This will document current settings for later reference. To perform a cold reset: 1

Turn off the printer.

2

While pressing [Go], turn the printer on. COLD RESET appears briefly on the display, then INITIALIZING appears. After a few seconds, RESTORING FACTORY SETTINGS appears on the display, followed by OFFLINE. The cold reset is complete.

3

Press [Go] to return the printer online. READY appears on the display.

Clearing NVRAM This procedure will clean up the NVRAM by removing old areas that are not being used. 1

Turn off the printer.

2

While pressing [Cancel Job] turn the printer on. CLEANUP NVRAM appears briefly on the display, followed by INITIALIZING. After a few seconds READY appears.

3-36 Printer Operation

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System Configuration MS-DOS System Configuration To communicate properly with the printer, the MS-DOS environment requires the addition or modification of MODE commands in the AUTOEXEC.BAT file. Add or modify the MODE command(s), depending on the interface configuration, as follows:

Parallel DOS Commands Most IBM and AT compatible computers default to a parallel printer port. To ensure that information is sent to your parallel printer port, type the following MS-DOS command at your MS-DOS prompt or include it in your AUTOEXEC.BAT file: MODE LPT1:,,B Note

This example assumes that you are using parallel printer port LPT1. If you are using LPT2 or LPT3, replace LPT1 in the example with the printer port that you are using. Since the MODE command is an external MS-DOS command (a program named MODE.COM is run when the MODE command is invoked), the program file must be contained in the root directory, or in a directory specified in a preceding PATH command in the AUTOEXEC.BAT file. After changing the AUTOEXEC.BAT file, reboot the computer to initiate the changes.

EN

System Configuration 3-37

Serial MS-DOS Commands Most IBM compatible computers default to a parallel printer port. To ensure that information is sent to the serial printer port, type the following MS-DOS commands at the MS-DOS prompt, or include them in the AUTOEXEC.BAT file: MODE COM1: 9600, N, 8, 1, B MODE LPT1: =COM1 Note

These examples assume that you are using serial printer COM1. If you are using COM2 or COM3, replace COM1 with the printer port that you are using. Since the MODE command is an external MS-DOS command (a program named MODE.COM is run when the MODE command is invoked), the program file must be contained either in the root directory or in a directory specified in a preceding PATH command in the AUTOEXEC.BAT file. After changing the AUTOEXEC.BAT file, reboot the computer to initiate the changes.

3-38 Printer Operation

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Printer I/O Configuration Parallel Menu The default setting for the HIGH SPEED PARALLEL I/O is YES. If it is set to NO, the interface runs at a slower speed that is compatible with older computers. When the default is set to YES, the parallel interface runs at a higher rate supported by newer computers.

Advanced Functions The ADVANCED FUNCTIONS feature of the printer enables bidirectional communications between the printer and the host. The default setting is ON. This default setting (ON) must be active in order to use HP LaserJet Explorer, the Windows® Printing System, and other software applications and drivers.

Serial Configuration Use RS-232C serial configuration when the printer is located 11 to 50 feet (3.35 to 15.24 meters) from the computer. If you need to locate the printer between 51 and 2000 feet (15.54 and 610 meters) from the computer, use an RS-422A serial configuration. Serial I/O settings must be configured correctly for proper serial communication.

Serial Protocol When printing with a serial configuration, the same protocol must be set on both the printer and the computer. Protocol on the printer is set by changing the control panel settings. Protocol on the computer is set by using DOS commands. The default protocol settings are described below.

BAUD Rate The BAUD RATE setting tells the printer how fast information is transferred to and from the computer. The default setting is BAUD RATE=9600*.

EN

Printer I/O Configuration 3-39

Pacing (Handshaking) Pacing (or “handshaking”) is a type of communication between the printer and the computer. This is an important setting in the printer because it allows the printer to tell the computer when to send information. If the printer is unable to receive information, for example, when the print buffer is full or when the printer is out of paper, a signal is sent to the computer to stop sending information. When the printer is able to resume receiving information, it sends another signal to the computer to send more data. Pacing is set through the control panel’s I/O Menu. Two types of handshaking are supported by the printer: ●

Select DTR/DSR through the I/O Menu’s PACING item if the computer requires hardware flow control (most personal computers do). Through the I/O Menu’s DTR POLARITY item, the DTR polarity can be set to High or Low. The default is DTR POLARITY=HI.



Select XON/XOFF through the I/O Menu’s PACING item if the computer requires software flow control (for example, if you are using a UNIX workstation). Note that status readback messages are not paced when XON/XOFF is selected. Through the I/O Menu’s ROBUST XON item, Robust Xon can be set to ON (the default) or OFF. Note that the ROBUST XON item only appears under the I/O Menu if XON/XOFF is selected.

3-40 Printer Operation

EN

4

Printer Maintenance

Overview This chapter discusses the following:

EN



Cleaning the Printer and Accessories



Preventative Maintenance

Overview 4-1

Cleaning the Printer and Accessories To maintain high print quality and performance, thoroughly clean the printer and the paper handling accessories: ●

Every time you change the Toner Cartridge (run a cleaning page).



After printing approximately 15,000 pages.



Whenever print quality problems occur.

Clean the outside surfaces with a lightly water-dampened cloth. Clean the inside parts as indicated in Table 4-1. Observe the warning and caution below. WARNING!

Before you begin these steps, turn the printer off and unplug all power cords to avoid shock hazard. Be careful when cleaning around the Fusing Assembly area. It may be hot.

CAUTION

To avoid permanent damage to the Toner Cartridge, do not use ammonia-based cleaners on or around the printer. Do not touch the transfer roller. Skin oils on the roller can reduce print quality. If toner gets on your clothes, wipe it off with a dry cloth and wash your clothes in cold water. Hot water sets toner into fabric.

Figure 4-1

Location of the Transfer Roller - Do Not Touch!

4-2 Printer Maintenance

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Table 4-1. Cleaning the Printer Component

Cleaning Method / Notes

Outside Covers

Use a water-dampened cloth. Do not use solvents or ammoniabased cleaners.

Inside General

With a dry lint-free cloth, wipe any dust, spilled toner, and paper particles from the paper path area, the registration roller, and the Toner Cartridge cavity.

Paper Pickup, Feed, and Separation Rollers

Use a water-dampened, lint-free cloth.

Separation Pad

Use a dry, lint-free cloth.

Registration Roller

Use a dry, lint-free cloth.

Transfer Roller

Use a dry, lint-free cloth. DO NOT TOUCH with your fingers.

Fuser

Use a water-dampened, lint-free cloth.

EN

Cleaning the Printer and Accessories 4-3

Using the Printer Cleaning Page If toner specks appear on the front or back side of your print jobs, follow the procedure below. From the printer’s control panel, do the following:

Note

1

Press [Menu] until PRINT QUALITY MENU appears.

2

Press [Item] until CREATE CLEANING PAGE appears.

3

Press [Select] to create the cleaning page.

4

Follow the instructions on the cleaning page to complete the cleaning process.

In order for the cleaning page to work properly, print the page on copier grade paper (not bond or rough paper). You might need to create a cleaning page more than once. When toner has been cleaned from inside the printer, shiny black spots will appear on the page’s black strip. If white spots appear on the black strip, create a cleaning page again. To ensure good print quality with certain types of paper, use the cleaning page every time the toner cartridge is replaced. If the cleaning page is frequently needed, try a different type of paper.

Cleaning Spilled Toner Defective Toner Cartridges can develop leaks. Also, after a paper jam has occurred, there may be some toner remaining on the rollers and guides inside the printer. The pages that print immediately after the jam may pick up this toner. Note

Clean spilled toner with a cloth dampened with cold water.

CAUTION

Do not touch the Transfer Roller with the damp cloth or with your fingers. Do not use a vacuum cleaner unless it is equipped with a micro-fine particle filter.

4-4 Printer Maintenance

EN

Preventative Maintenance The preventative maintenance cycle for this printer, conducted by service personnel, is every 150,000 pages. To order the maintenance kit see page 8-4. The kit contains one Fuser, one Transfer Roller, one Tray 1 Pickup Roller, one Tray 1 Separation Pad, two 250-sheet Tray Pick Rollers, two 250-sheet Tray Separation Pads and Springs, four 500-sheet Tray Pick D-Rollers, and two 500-sheet Tray Feed/ Separation Rollers. Refer to the instructions included in the kit for detailed replacement procedures.

Reset Maintenance Count After the PM kit has been installed, reset the maintenance count. 1

Turn the printer off.

2

While pressing [Item-] and [Value-] turn the printer on.

Reset Maintenance Count appears, followed by INITIALIZING. After a few seconds READY appears.

Expected Life of Components The following table shows the expected life of certain components in the printer. To order parts, see Chapter 8. Table 4-2. Life of Components Part name

Part No.

Quantity Expected Life

1

Pickup Roller

RB2-1821-000CN

1

150,000 pages

2

Separation Pad

RF5-2435-000CN

1

150,000 pages

3

Tray 1 Pickup Roller

RB2-1795-000CN

1

150,000 pages

4

Tray 1 Separation pad

RF5-2400-000CN

1

150,000 pages

5

Fuser 110-127V 220-240V

RG5-3528-000CN RG5-3529-000CN

1 1

150,000 pages 150,000 pages

EN

Preventative Maintenance 4-5

Table 4-2. Life of Components (continued) Part name

Part No.

Quantity Expected Life

6

Transfer Charging Roller

RG5-3579-000CN

1

150,000 pages

7

Exhaust Fan

RH7-1354-000CN

1

25,000 hours

4-6 Printer Maintenance

EN

5

Functional Information

Overview This chapter discusses the following:

EN



Power Supply Subsystem



DC Controller Subsystem



Formatter PCA



Control Panel



Interface PCA



Image Formation System



Paper Feed System



Basic Sequence of Operation

Overview 5-1

Printer Subsystems This chapter presents a generalized functional overview of the printer and the printing processes.

Figure 5-1

Paper Feed Subsystem

5-2 Functional Information

EN

Power Supply System AC/DC Power Distribution The AC line voltage for the printer is applied through the main switch (SW101) and supplied to the low-voltage power supply circuit through the fuse (FU1). The low-voltage power supply divides the AC voltage to +24 VDC, +5 VDC and +3.4 VDC and supplies them to the DC controller PCA. This circuit generates a zero-cross signal (ZEROX) and supplies it to the DC controller PCA. +3.4 VDC is supplied to ICs on the DC controller PCA and the BD PCA. +5 VDC is supplied to the laser driver PCA and sensors. +24 VDC is supplied to the high-voltage power supply PCA to drive the main motor, the exhaust fan, the scanner motor, the clutches, and the solenoids. +24 VDC is divided into +24 Vdr, which stops when the top cover is opened and SW401 on the terminal PCA turns off, and _24V, which is always supplied regardless of whether SW401 turns on or off.

EN

Power Supply System 5-3

Figure 5-2

Low Voltage Power Supply Circuit If a short circuit or other problems on the load side cause an excessive current flow from the +24 VDC or +3.4 VDC power supplies or generate abnormal voltage, the excess-current protection system and excess-voltage protection system automatically shut off the output voltage to protect the power supplies. If an excess-current or excess-voltage protection system is activated and the power supply circuit does not output DC voltage, it is necessary to turn the power off, correct the problem in the faulty load, then turn the printer on again. The circuit has two fuses which break and cut off the output voltage if excess-current flows through the AC line.

5-4 Functional Information

EN

Overcurrent Overvoltage Protection This circuit located on the DC controller PCA always monitors an abnormal rise of the fusing roller temperature. If an error occurs, this circuit outputs a signal to turn the relay (RL1) off and interrupt the power to the fusing roller heater. The circuit operates as follows. When the fusing roller heater temperature rises and the output voltage of the thermistor exceeds about 0.5 V (230°C), pin 7 of the comparator (IC304) goes “L.” IC304 pin 1 goes “L,” Q4 turns off, then the relay (RL1) turns off. The printer has the following three protection functions to prevent wrong activation of the fusing roller heater.

EN



The CPU monitors the thermistor (TH1301) voltage. If it is abnormal, the CPU identifies the fusing roller heater error, turns the relay (RL1) off, and reports it to the Formatter.



If the fusing roller heater temperature rises excessively and the TH1301 voltage falls below about 0.6 V (220°C), the safety circuit in the fusing roller heater interrupts the power to the fusing heather regardless of the CPU output.



If the fusing roller heater temperature rises abnormally and the thermal fuse temperature exceeds 240°C, the thermal switch turns off and interrupts the power to the fusing roller heater.

Power Supply System 5-5

High Voltage Power Distribution

Figure 5-3

High Voltage Power Supply Circuit In response to the instructions from the microprocessor (CPU: IC301) on the DC controller, this circuit applies the superimposed voltage of DC voltage and AC voltage to the primary charging roller and developing cylinder, and a positive or negative DC voltage to the transfer charging roller. According to the image density information sent from the Formatter PCA, this circuit varies the primary DC bias and developing DC bias to adjust the image density.

5-6 Functional Information

EN

Toner Cartridge Detection The Toner Cartridge has a toner sensor. The circuit compares the output value of the developing AC bias and the output value (ANT) from the antenna inside the cartridge, and outputs the toner detection signal. The CPU detects the remaining toner level and the presence of the cartridge when the developing bias is applied to the developing cylinder. The remaining toner level is always detected when the developing bias is applied. The presence of the cartridge is detected only when the developing bias is applied during the initial rotation.

DC Controller System The following systems and functions are controlled by the DC Controller PCA: ●

DC Power Distribution (+3.4 VDC, +5 VDC, +24 VA)



Laser and Scanner Drive



Paper Motion Monitoring and Control (photosensors and flags)



Clutches (tray pickup and Tray 1 feed)



Engine Test



Motors (Main Drive, Scanner, and Fans)

The operation sequences of this printer are controlled by the CPU of this circuit. When the printer power switch is turned on and the printer enters the standby mode, the CPU outputs the signals to drive the loads such as laser diode, motors, and solenoids, based on the print commands and the image data input from the external device.

EN

Power Supply System 5-7

Figure 5-4

DC Controller PCA

Laser and Scanner Drive Based on information received from the Formatter, the DC Controller Board sends signals to the Laser/Scanner Assembly to modulate the laser diode on and off and to drive the Laser/Scanner motor. See “Image Formation System” on page 5-18 for more information.

5-8 Functional Information

EN

Paper Motion Monitoring and Control The DC Controller Board controls paper motion by continuously monitoring the various paper sensors, and coordinating paper movement with the other print processes. For more information, see “Paper Feed System” on page 5-29.

Solenoids, Sensors, Clutches, and Switches See “DC Controller PCA Inputs and Outputs” on page 7-107.

Engine Test Print See “Engine Test” on page 7-9.

EN

Power Supply System 5-9

Motors See “Timing Diagram” on page 5-47 for specific timing details for the printer motors. The Main Motor, MT1, is controlled by the DC Controller Board. The Main Motor drives the main Gear Assembly and rotates during the Initial Rotation period (following power-on), the Print period, the Last Rotation period, or whenever the printer’s Top Cover is opened and closed.

Figure 5-5

Main Motor Control The Main Motor is a DC brushless motor with hall elements, and is unified with the motor drive circuit. The CPU (IC501) sets the main motor drive signal (/MON) to “L” and rotates the main motor. When printing at 1200 dpi, the CPU sets the main motor rotation switching signal (/HALF) to “L” and decreases the rotation speed of the main motor to half.

5-10 Functional Information

EN

The Scanner Motor is controlled and monitored by the DC Controller Board. It rotates the scanner mirror during the Initial Rotation period and the print period. The fan motor is a two-phase, four-pole DC brushless motor containing a hall element and forms a unit along with the motor drive circuit. When the printer turns on, the CPU (IC301) on the DC controller PCA makes pin 99 (/HALFFAN) “H” and runs the fan motor half a turn. The CPU controls the half-speed/full-speed rotations according to the target fixing roller temperature when the CPU receives the /PRNT signal from the video controller PCA. When the fixing unit warms up sufficiently, it makes pin 99 (/HALFFAN) “H” to set the fan drive voltage (FANON) to the voltage level to run the fan motor at full speed. If the printing ends, the fan motor is run at full speed for 30 seconds after the main motor stops, then the fan motor runs at half speed.

EN

Power Supply System 5-11

Formatter System The Formatter PCA is responsible for the following: ●

Controlling the PowerSave mode.



Receiving and processing print data from the various printer interfaces.



Monitoring Control Panel inputs and relaying printer status information (through the Control Panel and the Bidirectional I/O).



Developing and coordinating data placement and timing with the print engine.



Storing font information.



Communicating with the host computer through the Bidirectional Interface.

The Formatter PCA receives a print job from the Bidirectional Interface and separates it into image information and instructions which control the printing process. The DC Controller Board synchronizes the Image Formation System with the Paper Input and Output Systems, and then signals the Formatter to send the print image data. The Formatter PCA also provides the electrical interface and mounting locations for two EIO cards, additional memory DIMMs, and the Hard Disk accessory.

PowerSave This feature (accessed from the Configuration Menu) conserves power by shutting down the Fuser and exhaust fans after the printer has been idle for an adjustable period of time. The printer retains all printer settings, downloaded fonts, and macros while in PowerSave mode. The default setting is POWERSAVE ON, with a 30-minute idle time.

5-12 Functional Information

EN

The printer exits PowerSave mode and enters the warm up cycle when any of the following occurs:

Note



A print job, valid data, or a PML or PJL command is received at the parallel port or an EIO card.



A Control Panel key is pressed.



The top cover is opened and then closed.



A paper tray is opened and then closed.



The Engine Test button is pressed.

Printer error messages override the PowerSave message. The printer will enter PowerSave mode at the appropriate time, but the error message will continue to be displayed.

Resolution Enhancement technology (REt) The Formatter PCA contains circuitry for Resolution Enhancement technology (REt), which modifies the standard video dot data on its way to the DC Controller Board to produce “smoothed” black-to-white boundaries. REt can be set from the Control Panel, or from some software applications. The default setting is medium. Note

REt settings sent from software applications or printer drivers override the Control Panel settings.

EconoMode The EconoMode setting uses up to 50% less toner than standard mode printing by reducing the dot density. However, EconoMode does not extend Toner Cartridge component life. EconoMode, which can be thought of as “draft mode,” can be selected from the Control Panel (Print Quality Menu) and through some software applications and printer drivers. The default setting is off. Note

EN

EconoMode does not affect print speed or memory usage, nor does it extend the Toner Cartridge’s life.

Formatter System 5-13

Input/Output Parallel Interface The Formatter PCA receives incoming data through its bidirectional interface (IEEE 1284). The I/O provides high speed and two way communication between the printer and the host, allowing the user to change printer settings and monitor printer status from the host computer. The user may configure the HIGH SPEED item in the Control Panel menu. The default setting, YES, allows the I/O to run at the higher speeds supported by most newer computers. When set to NO, the parallel interface runs at the slower mode that is compatible for older computers. The user may also configure the ADVANCED FUNCTIONS item. The default setting, ON, allows for two-way parallel communications. The OFF mode disables the advanced functionality. The I/O is compatible with the bidirectional parallel interface standard.

Expanded I/O The optional Expanded I/O card can be installed in the slots provided on the Formatter PCA. It provides automatic I/O switching between multiple computers or networks connected to the printer. The network version printers include the HP JetDirect Print Server with Ethernet 10Base-T, 10Base-2, and LocalTalk.

Flash Flash is provided in optional 2 and 4 MB flash memory DIMMs for storage of forms, fonts, and signatures.

Disk The optional 1.4 GB EIO-based hard drive is used for creating multiple original prints (mopies) and for storage of forms, fonts, and signatures.

Local Talk I/O The printer implements AppleTalk networking protocol through LocalTalk hardware. The LocalTalk network cable (HP P/N 92215N) is connected through the EIO card.

CPU The Formatter PCA incorporates a 100 MHz RISC processor.

5-14 Functional Information

EN

Printer Memory Note

If the printer encounters difficulty managing available memory, a clearable warning message will be displayed on the Control Panel. Some printer messages are affected by the Auto Continue and Clearable Warning settings from the Configuration Menu in the printer’s Control Panel. If CLEARABLE WARNING=JOB is set on the Control Panel, warning messages display on the Control Panel until the end of the job from which they were generated. If CLEARABLE WARNING=ON is set, warning messages display on the Control Panel until [Go] is pressed. If an error occurs that prevents printing and AUTO CONTINUE=ON is set, the printer goes offline for 10 seconds before it returns online. If AUTO CONTINUE=OFF is set, the message displays until [Go] is pressed.

Read Only Memory (ROM) Besides storing microprocessor control programs, the ROM stores dot patterns of internal character sets (fonts).

Random Access Memory (RAM) The RAM contains the page and I/O buffers and the font storage area. It stores printing and font information received from the host system, and can also serve to temporarily store a full page of print image data before the data is sent to the print engine (see “Page Protect” on page 5-21). RAM memory capacities for each printer are shown in “Printer Features” on page 1-2. Memory capacity can be increased by adding DIMMs to the Formatter PCA. Note that adding memory (DIMMs) may also increase the print speed of complex graphics.

EN

Formatter System 5-15

DIMM Slots The DIMM slots may be used to add memory, fonts, or firmware upgrades. Note that DIMMs and SIMMS are not compatible. There are two types of DIMMs supported: EDO DIMMs are 32-bit, 100-pin, 60nsec. SDRAM DIMMs are 32-bit, 100-pin, 66MHz.

Non-Volatile Memory (NVRAM) The printer uses NVRAM to store I/O and information on the print environment’s configuration. The contents of NVRAM are retained when the printer is turned off or disconnected.

Disk Accessory The Disk Accessory is mounted on the rear of the Formatter PCA. It can be used to permanently store downloaded fonts and forms in the printer.

Memory Enhancement technology (MEt) The Hewlett-Packard Memory Enhancement technology (MEt) effectively doubles the standard memory through a variety of font and data compression methods. Note

MEt is only available in PCL mode; it is not functional when printing in PS mode.

Page Protect Page complexity (rules, complex graphics, or dense text) may exceed the printer’s ability to create the page image fast enough to keep pace with the Image Formation Process. If Page Protect is disabled, and a page is too complex, it may print in parts (for example, the top half on one page and the bottom half on the next page). Some print data loss is likely in these instances, and the printer will display the 21 PAGE TOO COMPLEX error message, alternating with PRESS GO TO CONTINUE. Page Protect allows the Formatter to create the entire page image in page buffer memory before physically moving the paper through the printer. This process ensures that the entire page will be printed. Page Protect applies only to PCL printing. The default setting is Auto.

5-16 Functional Information

EN

PJL Overview Printer Job Language (PJL) is an integral part of configuration, in addition to the standard Printer Command Language (PCL). With standard cabling, PJL allows the printer to perform functions such as: ●

Two-way communication with the host computer through a Bidirectional Parallel connection. The printer can tell the host such things as the Control Panel settings, and allows the Control Panel settings to be changed from the host.



Dynamic I/O switching. This allows the printer to be configured with a host on each I/O. The printer can receive data from more than one I/O simultaneously, until the I/O buffer is full. This can occur even when the printer is offline.



Context-sensitive switching. This allows the printer to automatically recognize the personalities (PostScript or PCL) of each job and configure itself to serve that personality.



Isolation of print environment settings from one print job to the next. For example, if a print job is sent to the printer in landscape mode, the subsequent print jobs print in landscape only if they are formatted for landscape printing.

PML PML is a Printer Management Language that allows remote configuration and status readback through the I/O Ports.

Control Panel The Formatter PCA sends and receives printer status and command data via a Control Panel PCA. See “Using the Control Panel” on page 3-2, and “Alphabetical Printer Messages” on page 7-16 for more information.

EN

Formatter System 5-17

Image Formation System The image formation system is the main part of the printer, and consists of six stages: 1. Cleaning 2. Conditioning 3. Writing

4. Developing 5. Transferring 6. Fusing

When the Formatter Board sends the print signal to the DC Controller Board, it drives the main motor to rotate the photosensitive drum, the developing cylinder, the primary charging roller, and the transfer charging roller. The primary charging roller places a uniform negative charge on the surface of the photosensitive drum. The laser beam modulated by the video signal is illuminated on the photosensitive drum surface to form the latent image on the drum with the laser diode. The latent image formed on the photosensitive drum is changed to a visual image by the toner on the developing cylinder, then transferred to the paper by the transfer charging roller. The residual toner on the photosensitive drum surface is scraped down with the cleaning blade. The potential on the drum is uniformed by the primary charging roller to prepare for a new latent image. The cartridge has a toner sensor that detects the remaining toner level and the presence of the cartridge. If the toner in the cartridge becomes lower than the specified level or if there is no cartridge in the printer, it is reported to the Formatter.

5-18 Functional Information

EN

Figure 5-6

Image Formation System After the image has been transferred to the paper, it is then fused onto the paper by heat and pressure at the Fuser.

EN

Image Formation System 5-19

Toner Cartridge A major portion of the Image Formation system is contained in the cartridge as shown in the figure below. The Toner Cartridge is the “heart” of the Image Formation System. It houses the cleaning, conditioning, and developing steps of the process. The Toner Cartridge contains the photosensitive drum, primary charging roller, developing station, toner cavity, and cleaning station. Including these components that wear, degrade, or are consumed in the replaceable Toner Cartridge eliminates the need for a service call when replacement is required. The printer also has a new cartridge drive system that minimizes banding, with more constant paper speed.

Figure 5-7

Toner Cartridge

5-20 Functional Information

EN

Photosensitive Drum The special properties of the photosensitive drum allow an image to be formed on the drum surface and then transferred to paper. The drum is an aluminum cylinder. The outside of the cylinder is coated with a layer of organic-photoconductive material (OPC) which is nontoxic. The OPC material has properties similar to a photo-resistor. It becomes electrically conductive when exposed to light. (The negative charges deposited on the drum are conducted to the ground potential of the drum base.) Areas not exposed to light remain non-conductive and maintain their negative charge. The aluminum base of the photosensitive drum is electrically connected to ground potential.

Photosensitive Layer

Aluminum Base

Figure 5-8

EN

Photosensitive Drum

Image Formation System 5-21

Cleaning the Drum In the transfer stage, not all the toner is transferred to the paper, but some remains on the photosensitive drum. In this stage, the residual toner is cleaned so that the next print image will be clear and distinct.

Figure 5-9

Cleaning the Drum The residual toner on the drum surface is scraped away with the cleaning blade to clean the drum surface in preparation for the next print. The removed toner is collected into the cleaner container.

5-22 Functional Information

EN

Conditioning the Drum After the drum is cleaned, it must be conditioned. This process consists of applying a uniform negative charge on the surface of the drum with the primary charging roller. The primary charging roller is coated with conductive rubber with an AC bias applied to erase any residual charges and maintain a constant drum surface to create a uniform negative potential on the drum surface. The amount of DC voltage is modified by the print density setting.

Primary charging roller

AC bias

Photosensitive Drum

DC bias

Figure 5-10

EN

Primary Charging Roller

Image Formation System 5-23

Writing the Image During the writing process, a modulated laser diode projects the beam onto the rotating six-sided scanning mirror. As the mirror rotates, the beam reflects off the mirror, through a set of focusing lenses, through a slot in the rear of the Toner Cartridge, and onto the photosensitive drum. The beam sweeps the drum from left to right, discharging the negative potential wherever the beam strikes the surface. This creates a latent electrostatic image, which later is developed into a visible image.

Focusing Lens BDIC PCB

Scanner Motor Scanning Mirror (Hexahedron)

BD Lens

Laser Driver Cylindrical Lens BD Mirror Photosensitive Drum Figure 5-11

Writing the Image Because the beam is sweeping the entire length of the drum and the drum is rotating, the entire surface area of the drum can be covered. The speed of the scanner motor (which turns the scanning mirror) and the speed of the main motor (which turns the drum) are synchronized, and each successive sweep of the beam is offset by 1/1200th of an inch. The beam can be turned on and off to place a dot of light every 1/1200th of an inch. This is how the printer achieves its 1200x1200 dpi resolution. After the writing process, the drum surface has an invisible (latent) electrostatic image. At the end of each sweep, the beam strikes the beam detect lens, generating the Beam Detect Signal (/BD). The BD signal is sent to the DC Controller Board, where it is converted to an electrical signal used to synchronize the output of data (/VDO) for one sweep (scan line) and to diagnose problems with the laser diode or scanner motor.

5-24 Functional Information

EN

Developing the Image The developing process develops the latent electrostatic image into a visible image on the drum. The developing unit consists of a metallic cylinder that rotates around a fixed magnetic core inside the toner cavity. Toner is a powdery substance made of black plastic resin bound to iron particles, which is uniformly attracted to the magnetic core of the cylinder. The toner particles obtain a negative surface charge by rubbing against the developing cylinder which is connected to a negative DC supply. The negatively charged toner is attached to the discharged (exposed, grounded) areas. An AC potential is applied to the developing cylinder to decrease the attraction between the toner and the magnetic core of the cylinder, and to increase the repelling action of the toner against the areas of the drum not exposed to laser light. This AC potential improves density and contrast.

Figure 5-12

Developing the Image The Print Density control in the Control Panel Menu adjusts the DC bias of the developing cylinder by changing the force of attraction between the toner and drum. A change in the DC bias causes either more or less toner to be attracted to the drum, which in turn either increases or decreases the print density. Both the primary and developer DC bias voltages are changed in response to the density setting.

EN

Image Formation System 5-25

Transferring the Image During the transferring process the toner image on the drum surface is transferred to the paper. A positive charge applied to the back of the paper by the transfer roller causes the negatively charged toner on the drum surface to be attracted to the page. The small diameter of the drum, combined with the stiffness of the paper, causes the paper to peel away from the drum. The static eliminator teeth also help separate the paper from the drum. The static eliminator teeth weaken the attractive forces between the negatively charged drum surface. After separation, the drum is cleaned and conditioned for the next image.

Figure 5-13

Transferring the Image

5-26 Functional Information

EN

Image Fusing/Variable Fusing Temperature During the fusing process, the toner is fused into the paper by heat and pressure to produce a permanent image. The paper passes between a heated fusing roller and a soft pressure roller. This melts the toner and presses it into the paper. The fusing roller contains a ceramic heating element that provides heat for the fusing process. Fusing temperature is monitored by the DC Controller Board, via the thermistor TH1303. If the fusing system overheats (about 446° F/230° C), a relay opens, interrupting power to the Fusing Heater, causing a Fuser error message (50.X FUSER ERROR). If the fusing system exceeds 464° F (240° C), the thermal fuse will open, cutting off power to the Fuser. The DC Controller Board maintains a variable fuser temperature that is dependent on the paper type set in the Paper Handling Menu.

Figure 5-14

EN

Image Fusing

Image Formation System 5-27

Variable Fusing Temperature

Figure 5-15

Fusing Temperature Control Variable Fusing Temperature is a feature that gives the user or service technician the ability to adjust the fusing temperature based on the media being used in the printer. The default mode is Normal and should be optimal for most users. There is an optional Vellum, Low, Normal, and High Fuser Mode selection. If very heavy or rough media is being used, then High Fuser Mode is beneficial. If transparencies or light media are being used, then Low Fuser Mode might be appropriate. CONFIGURE FUSER MODE is in the Paper Handling Menu and when set to the default of NO, paper types are not displayed in the menu. When CONFIGURE FUSER MODE is set to YES, the different paper types are then displayed in the menu.

5-28 Functional Information

EN

Paper Feed System

Figure 5-16

Paper Path The paper in Tray 1 is detected by the Tray 1 paper sensor (PS401). The paper in Tray 2 is detected by the Tray 2 paper sensor (PS301). The size of the paper in Tray 2 and the presence of Tray 2 installed in the printer are detected by four switches (SW403, SW404, SW405, and SW406) on the terminal PCA. When the paper is fed from Tray 2, the Tray 2 pickup solenoid (SL306) and the feed roller clutch (CL406) turn on while the main motor (M1) is rotating. Then the Tray 2 pickup roller and the feed roller start rotating to feed a sheet of paper into the printer. When the paper is fed from Tray 1, the Tray 1 pickup solenoid (SL404) turns on while the main motor (M1) is rotating. Then the Tray 1 feed roller starts rotating to feed a sheet of paper into the printer.

EN

Paper Feed System 5-29

The paper passes through the registration roller paper sensor (PS403) and stops at the registration roller to loop the leading edge and its skew is corrected. Then the registration clutch (CL405) turns on to restart paper feed. The DC controller PCA sends the top of page signal (/TOP) to the Formatter PCA within a specified period of time after the top of page sensor (PS402) detects the leading edge of the paper. The Formatter PCA sends the video signal (/VDO, VDO) within a specified period of time after it receives the /TOP signal to align the image leading edge on the photosensitive drum with the leading edge of the paper already fed. The paper then passes through the transfer unit, separation unit, fuser, and deliver unit and is output onto the rear output bin or the top output bin. There are three photointerrupters (PS402, PS403, and PS1306) in the paper path to detect the paper. If the paper does not reach or pass through any of the sensors within the specified period of time, the microprocessor (CPU) on the DC Controller PCA notifies the Formatter of a paper jam.

Clutches and Sensors See “Reference Diagrams” starting on page 7-79 for locations of switches, sensors, and clutches.

5-30 Functional Information

EN

Printing from Tray 1 The presence of paper in Tray 1 is detected by the Tray 1 Paper Sensor (PS401). When the Formatter PCA sends the /PRNT (print signal) to the printer, the CPU turns the Tray 1 pickup solenoid (SL404) on within the specified period of time for the main motor (M1) and the scanner motor to start and the printer to be ready to print. This turns the cam on and lifts the middle plate where the paper is loaded. The paper touches the Tray 1 feed roller. The Tray 1 feed roller rotates a full circle to feed one sheet of paper. Extra sheets are removed with the separation pad, and only one sheet is fed into the printer as the Tray 1 feed roller rotates. The paper passes through the registration roller paper sensor (PS403) and stops at the registration roller that is not turning, loops the leading edge of the paper and corrects its skew. The CPU turns the registration roller clutch (CL405) on within a specified loopforming time and feeds the paper through the transfer unit, the separation unit, the fuser, and the delivery unit, and outputs it onto the tray.

EN

Paper Feed System 5-31

Figure 5-17

Tray 1 Pickup

5-32 Functional Information

EN

Printing from Tray 2 When the Formatter PCA sends the /PRNT (print signal) to the printer, the CPU turns the Tray 2 pickup solenoid (SL306) on about 0.15 seconds after the main motor (M1) starts rotating, then turns on the feed roller clutch (CL406). The main motor rotates the Tray 2 pickup roller and feed roller. The Tray 2 pickup roller rotates a full circle with the Tray 2 pickup solenoid (SL306) and picks up one sheet of paper from the tray. The paper is fed into the printer as the feed roller rotates. The paper passes through the registration roller paper sensor (PS403) and stops at the registration roller that is not turning, loops the leading edge of the paper and corrects its skew. The CPU turns the feed roller clutch (CL406) off within a specified loop-forming time and stops the feed roller rotation. The CPU turns the registration roller clutch (CL405) and feed roller clutch (CL406) on about 1.3 seconds after the scanner becomes ready and feeds the paper through the transfer unit, separation unit, fuser, and delivery unit and outputs it onto the tray.

Figure 5-18

EN

Tray 2 Paper Path

Paper Feed System 5-33

Figure 5-19

Paper Skew Loop-forming

5-34 Functional Information

EN

Printing from the Optional 500-sheet and 250-sheet Trays There are two kinds of paper feeders: 250-sheet and 500-sheet. The paper feeder operation sequence is controlled by the paper handling PCA. The paper handling PCA has the 8-bit microcomputer, and controls the serial communications between the operation sequence control of the paper handling and the DC controller PCA of the printer. The paper handling PCA drives motors and solenoids with various commands from the DC controller PCA. The paper handling PCA sends the status of the paper feeder back to the printer at the same time. (Refer to page 7-74 for the wiring diagrams.)

Figure 5-20 EN

250-sheet Paper Feeder Paper Feed System 5-35

Figure 5-21

500-sheet Paper Feeder

5-36 Functional Information

EN

Paper Jam To detect the presence of paper and whether the paper has been correctly fed, the following paper sensors are installed: ●

Registration roller paper sensor (PS403)



Top of page sensor (PS402)



Fuser paper delivery sensor (PS1306)

If the paper does not reach or pass through any of the sensors within the specified period of time, the microprocessor (CPU) on the DC Controller PCA notifies the Formatter of a paper jam.

EN

Paper Feed System 5-37

Duplexer This function is to reverse the one side printed paper from the printer and refeed it into the printer. The Duplexer operation sequence is controlled by the duplex driver PCA. The duplex driver PCA has the 8-bit microcomputer, which controls the serial communications between the operation sequence control of the duplexing unit and the DC controller PCA of the printer. The duplex driver PCA drives motors and solenoids with various commands from the DC controller PCA. The duplex driver PCA also sends the status of the Duplexer back to the printer.

Reversing/Refeed System The paper is first fed into the Duplexer with the duplex deflector in the printer. In the Duplexer, the reversing roller switches the feeding direction of the paper. After the side registration guide adjusts the side registration, the paper is sent back into the printer with the feed and refeed rollers. The reversing motor (PM1701), the side registration guide drive motor (PM1702), and the refeed motor are all stepping motors. They are controlled both in straight and reverse rotation by the microcomputer (CPU) on the duplexing driver PCA. The reversing roller is driven by the reversing motor (PM1701). The feed and refeed rollers are driven by the refeed motor (PM1703). The side registration guide is driven by the side registration guide drive motor (PM1702), and is adjusted according to the size of the paper.

5-38 Functional Information

EN

Figure 5-22

EN

Paper Feed for the Duplexer

Paper Feed System 5-39

Reversing System The duplexing driver PCA receives the duplex admission command from the printer first. It turns on the Duplexer deflector drive solenoid (SL1701), and the Duplexer deflector in the printer then starts to send the paper into the Duplexer. Within a specified period of time after receiving the command, the duplexing driver PCA also drives the reversing motor (PM1701) in straight rotation, and the reversing rollers 1, 2, and 3 in XX direction. Therefore, the paper is fed in XX direction (shown in the figure below).

Figure 5-23

Duplexing Unit Within a specified period of time after the trailing edge of the paper is detected with the reversing unit paper sensor (PS1701), the duplex driver PCA pauses the rotation of the reversing motor (PM1701). The duplex driver PCA then switches the reversing motor (PM1701) to reverse rotation. As the paper is fed along the feed guide, it is fed through the reversing roller 4 and the feed roller 1 of the Duplexer.

5-40 Functional Information

EN

Figure 5-24

EN

Duplexing Unit

Paper Feed System 5-41

Uncurling Function This printer has the function to minimize a paper from wrinkle and paper edge crease due to curl. The printer sends the command to the duplexing driver PCA by receiving the uncurling command sent from the formatter PCA. The duplexing driver PCA executes one of the operations below by the command sent from the printer. 1

Skips uncurling operation

2

Executes pause operation

3

Executes dance operation

Pause Mode Pause mode reduces paper curl. The duplexing driver PCA starts the reversing process, and then the fusing delivery sensor (PS1306) senses the trailing edge of the paper. After a specified period of time, the duplexing driver PCA stops and rotates the reversing motor (PM1701) counter clockwise (CCW). At the same time, the reversing rollers 1, 2, and 3 are rotated in reverse. The paper comes out about 30 mm from the duplexing unit along the uncurling guide and pauses for about one second. Then, the duplexing driver PCA starts to rotate the reversing motor (PM1701) clockwise (CW) so that the reversing rollers 1, 2, and 3 are rotated in reverse, and the paper refeeds into the duplexing unit.

5-42 Functional Information

EN

Figure 5-25

Pause Mode Dance Mode Dance mode reduces paper curl by refeeding paper into the duplexing unit three times. The paper refeeds into the duplexing unit about 30 mm by using the pause mode. Then the duplexing driver PCA rotates the reversing motor (PM1701) counter clockwise (CCW), and the reversing rollers 1, 2, and 3 rotate in reverse. In this way, the paper comes out from the duplexing unit about 125 mm and pauses. Then, the duplexing driver PCA rotates PM1701 clockwise (CW). Accordingly, the reversing rollers 1, 2, and 3 are rotated in reverse, and the paper refeeds into the duplexing unit about 125 mm. After this returning and refeeding process is repeated three times, the paper refeeds into the duplexing unit.

EN

Paper Feed System 5-43

Figure 5-26

Dance Mode

Paper Jam in the Duplexer The following sensors are located to detect the presence of paper and to determine whether the paper is correctly fed. ●

reversing unit paper sensor (PS1701)



refeed paper sensor (PS1703)

If the paper does not reach or pass through any of the sensors within the specified period of time, the microprocessor (CPU) on the DC Controller PCA notifies the Formatter of a paper jam.

5-44 Functional Information

EN

Basic Sequence of Operation The Formatter PCA and the DC Controller Board share information during printer operation. The Interface PCA forms a link which operates as a serial data bus. This allows printer status, command, and dot-image data to be passed between the two PCAs. Table 5-1 shows the general timing of the printer events. The following events take place during normal printer operation:

Table 5-1. Printer Timing Period

Timing

Purpose

Remark

WAIT

From power on until the Main Motor completes the initial drive.

Clears the drum surface potential and cleans the transfer charging roller.

During this period, the printer detects the toner level and the presence of the cartridge.

STBY (standby)

Makes the printer ready to From the end of the WAIT print. period until the /PRNT signal is input from the Formatter, or from the end of the LSTR period until the /PRNT signal is input from the Formatter or until the power is turned off.

INTR (initial rotation)

After the /PRNT signal is input from the Formatter until the DC controller outputs the /TOP signal.

Stabilizes the sensitivity of the photosensitive drum in preparation for printing, and cleans the transfer charging roller to stabilize the transfer high voltage.

PRINT

From the end of the INTR period until the top of the paper sensor detects the trailing edge of the paper.

During this period, Forms an image on the the printer detects photosensitive drum the remaining toner. according to the /VDO and VDO signals input from the video controller, and transfers the image to paper.

EN

Basic Sequence of Operation 5-45

Table 5-1. Printer Timing Period

Timing

LSTR (last rotations)

After the primary DC voltage Delivers the final page turns off until the Main Motor and cleans the transfer charging roller. stops.

5-46 Functional Information

Purpose

Remark As soon as the /PRNT signal is input from the Formatter PCA, the printer enters the INTR period.

EN

Figure 5-27 EN

Timing Diagram Basic Sequence of Operation 5-47

5-48 Functional Information

EN

6

Removing and Replacing Parts

Overview This chapter discusses the following:

EN



User Installable Accessories



Removal and Replacement Strategy



Removing Covers



Removing Assemblies

Overview 6-1

User Installable Accessories Memory Upgrade CAUTION Static electricity can damage dual inline memory modules (DIMMs). When handling DIMMs, either wear an antistatic wrist strap or frequently touch the surface of the DIMM’s antistatic package, then touch bare metal on the printer. If you have not already done so, print a configuration page to find out how much memory is installed in the printer before adding more memory.

6-2 Removing and Replacing Parts

1

Turn the printer off. Unplug the power cord and disconnect any cables. (If an optional duplexer is installed, you will need to remove the rear section and the cable tray first.)

2

Loosen the two captive thumb screws on the back of the printer.

3

Grasp the screws and pull the formatter board out of the printer. Place it on a flat, non-conductive surface.

4

Remove the DIMM from the antistatic package. Hold the DIMM with fingers against the side edges and thumbs against the back edge. Align the notches on the DIMM with the DIMM slot. (Check that the locks on each side of the DIMM slot are open, or outward.)

5

Press the DIMM straight into the slot (press firmly). Make sure the locks on each side of the DIMM snap inward into place. (To remove a DIMM, the locks must be released.) EN

6

Slide the formatter board back into the printer and tighten the two screws.

7

If an optional duplexer is installed, reattach the cable tray and the rear section of the duplexer. Reattach any interface cables and the power cord. Turn the printer on and test the DIMM.

Note Single in-line memory modules (SIMMs) used on previous HP LaserJet printers are not compatible with the printer.

EN

User Installable Accessories 6-3

If an optional duplexer is installed:

6-4 Removing and Replacing Parts

1

Slide the rear section of the duplexer away from the printer.

2

Remove the rear section of the duplexer by lifting and rotating the rear section to clear all of the tabs in the grooves, as illustrated.

3

Unplug the power cord and disconnect any cables.

4

Remove the cable tray by lifting it out of position, as illustrated.

5

Reverse these steps to install the cable tray and the rear section of the duplexer. Make sure the cable tray is properly installed and the cables are routed through the left side.

EN

Checking Memory Installation Follow this procedure to verify that DIMMs are installed correctly:

1 Check that the printer’s control panel displays READY when the printer is turned on. If an error message appears, a DIMM might have been incorrectly installed. Check the printer messages. 2 Print a new configuration page. 3 Check the memory section on the configuration page and compare it to the configuration page printed before the DIMM installation. If the amount of memory has not increased, the DIMM might not be installed correctly (repeat the installation procedure), or the DIMM might be defective (try a new DIMM). 4 See Chapter 7, Troubleshooting, for additional information.

Installing EIO Cards / Mass Storage Turn off the printer before installing the EIO card or mass storage device. Slots will accommodate either type of device. For more information, see Appendix C in the User’s Guide.

EN

User Installable Accessories 6-5

Figure 6-1

Installing EIO Cards or Mass Storage Devices

6-6 Removing and Replacing Parts

EN

Removal and Replacement Strategy This chapter documents removal and replacement of major assemblies. Replacement is generally the reverse of removal. Occasionally, information is included to provide direction for difficult or critical replacement procedures. WARNING!

Unplug the power cord from the power outlet before attempting to service the printer. If this warning is not followed, severe injury may result. Never operate or service the printer with the protective cover removed from the Laser/Scanner assembly. The reflected beam, although invisible, can damage your eyes. This printer has some sharp, sheet metal edges which can cause injury.

Hint

To install a self-tapping screw, first turn it to the left until it clicks, indicating the threads are seated. Then, turn it to the right to tighten. Do not over-tighten. If a self-tapping screw-hole becomes stripped, repair of the screw-hole or replacement of the affected assembly is required.

CAUTION

The printer contains parts that are electrostatic discharge (ESD) sensitive. Always service printers at an ESD-protected workstation.

Required Tools ●

Phillips #2 magnetized screwdriver (6-inch shaft)



Small, flat-blade screwdriver



Small, needle-nosed pliers

All screws used in field-replaceable printer components are Phillips head screws that require a #2 size Phillips screwdriver. Figure 6-2 below shows the difference between a Phillips and a Posidriv screwdriver. Note that the Phillips tip has more beveled surfaces.

EN

Removal and Replacement Strategy 6-7

Phillips

Figure 6-2

Posidriv

Phillips vs. Posidriv Screwdrivers

Table 6-1. Screws Used in the Printer Drawing and Description

Purpose

Used to fasten metal to metal when good electrical contact is needed. Threaded Phillips with captive star washer

Used to fasten metal or plastic to plastic mainframes. Silver Self-tapping Phillips screw

Used to fasten metal or plastic to plastic mainframes. Black Self-tapping Phillips screw

6-8 Removing and Replacing Parts

EN

Table 6-1. Screws Used in the Printer (continued) Drawing and Description

Purpose

Used to fasten metal or plastic to threaded plastic or metal. Threaded Phillips screw with lock and flat washer

Used to ground and align the DC Controller pan. Spring Screw

Used to fasten the DC Controller. Long Machine Screw

EN

Removal and Replacement Strategy 6-9

Removing Covers Rear Door / Rear Output Bin 1

Figure 6-3

Face the rear of the printer. Press the two locking tabs toward the center of the printer, releasing the Rear Door.

Rear Door/Rear Output Bin . Item

Explanation

A

Locking Tabs

6-10 Removing and Replacing Parts

EN

2

Figure 6-4

Support Strap 3

Hint

EN

The plastic support strap is located on the left side of the printer. To release the strap, pinch the top of the strap with your index finger underneath the strap, and your thumb on top of the tab. Squeeze and lift up from the bottom, while pulling out (Figure 6-4).

Slide the door to the left, and then remove it from the printer.

For reassembly, insert the pin on the left side of the cover first.

Removing Covers 6-11

Top Cover Facing the front of the printer, open the Top Cover and remove the Toner Cartridge. CAUTION

To prevent damage to the toner cartridge, do not expose it to light for more than a few minutes.

Figure 6-5

Toner Cartridge Engagement Arm 1

Release the Toner Cartridge Engagement Arm from the inside of the Top Cover (Figure 6-5). The shaft of the Engagement Arm fits through a molded plastic ring on the left side of the Top Cover. Gently squeeze the locking tabs on the end of the shaft, and slide the shaft through the ring.

6-12 Removing and Replacing Parts

EN

CAUTION

EN

It is critical that step 1 be performed before you attempt to remove the Top Cover. If you damage the Arm, the printer will not operate.

A

Top screws

B

Toner Cartridge Drive Arm

C

Rear screws

2

Remove the two self-tapping screws on the top of the chassis.

3

Remove the two self-tapping screws on the top portion of the back of the printer. (The Rear Cover needs to be opened or removed for the screws to be accessible.)

Removing Covers 6-13

4

Figure 6-6

The cable connecting the Control Panel to the printer chassis is on the left side of the Top Cover. Tilt the cover to the left as you lift it. Be careful not to stress the cable as you loosen the cover.

Control Panel Cable 5

Disconnect the Control Panel cable from the printer chassis by grasping the wires and gently pulling the connector straight up.

6

Remove the Top Cover.

6-14 Removing and Replacing Parts

EN

Control Panel Overlay and Control Panel

Figure 6-7

EN

1

Remove the Top Cover (page 6-12).

2

The Control Panel Overlay is held in place on the Top Cover by two tabs on each side. Slide a small flat-blade screwdriver along the outside edge of the Control Panel Overlay, to disengage the two tabs on the outside of the cover.

3

Lift the Overlay off of the Control Panel.

Releasing Control Panel Overlay 4

Remove the single self-tapping screw holding the Control Panel to the underside of the Top Cover.

5

Lift up on the metal plate gently to free the Control Panel.

6

Grasp the Control Panel by the metal frame and remove it from the underside of the Top Cover. See Figure 6-8, “Back Side of Top Cover,” on page 6-16.

Removing Covers 6-15

Figure 6-8

Back Side of Top Cover

Item

Explanation

A

Direction to slide control panel out

B

Screw

6-16 Removing and Replacing Parts

EN

Toner Cartridge Door Assembly

Figure 6-9

EN

1

Remove the Top Cover (page 6-12).

2

Remove the Control Panel from the Top Cover (page 6-15). (The Control Panel must be removed before you can separate the Toner Cartridge Door from the Top Cover.)

3

Disengage the pins (A) by pressing outward, as shown below.

Toner Cartridge Door Assembly (Under Side of Top Cover Door)

Item

Explanation

A

Pins

Removing Covers 6-17

Front Cover and Tray 1 Front Cover and Tray 1 must be removed individually. See Figure 6-10.

Figure 6-10

1

Open the Front Cover door.

2

Disengage the Tray 1 Guide pins from inside the Front Cover by pushing the Guides (C) outward. The Cover and Tray 1 will be separated. Press Tray 1 Guide against the printer.

Front Cover

Item

Explanation

A

Front Cover

B

Tray 1 Guide

C

Guides

3

Release the Front Cover, allowing it to pivot freely on its keyed pins. The Tray will slide off the pins to the right at its lowest position.

6-18 Removing and Replacing Parts

EN

Figure 6-11

Tray 1 4

EN

Release the Tray 1 Guide by allowing the guide to slide off the keyed pins at its lowest position (Figure 6-11).

Removing Covers 6-19

Front Cover Pins

Figure 6-12

Hint

1

Remove the Front Cover and Tray 1 (page 6-18).

2

Remove the screws (A) to free the Front Cover Pins.

Front Cover Pins

Item

Explanation

A

Screws

To install a self-tapping screw, first turn it to the left until it clicks, indicating the threads are seated. Then, turn it to the right to tighten. Do not over-tighten. If a self-tapping screw-hole becomes stripped, repair of the screw-hole or replacement of the affected assembly is required.

6-20 Removing and Replacing Parts

EN

Face Down Assembly

Figure 6-13

EN

1

Remove the Top Cover (page 6-12).

2

Face the back of the printer.

3

Squeeze the locking tabs inward, one side at a time, to release the Face Down Assembly. See Figure 6-13

4

Lift slightly and then remove the Assembly with a rolling motion away from you. Be careful not to break the two locator pins on the front of the Assembly.

Location of Face Down Assembly Base

Item

Explanation

A

Scanner

B

Locking Tabs

Removing Covers 6-21

Figure 6-14

Face Down Assembly

Item

Explanation

A

Locator Pins

6-22 Removing and Replacing Parts

EN

Left and Right Side Covers The removal procedure is the same for both the left and the right side covers. See Figure 6-15.

Figure 6-15

Hint

EN

1

Remove the Top Cover (page 6-12).

2

Locate the tab in the top middle of the cover. Release the tab by pushing down on it.

3

Grab the side cover at the top by the front edge. With your other hand, grab the lower edge of the back. Rock the cover gently until it comes loose, and remove the cover.

4

Repeat the steps above for the other side cover.

Side Covers

Item

Explanation

A

Tabs

For reassembly, seat the tabs in the bottom of the Side Cover first. Then snap the top of the cover on.

Removing Covers 6-23

Tray 1 Inner Cover 1

CAUTION

Be sure to locate the Paper Sensor Flag on the left side of the Cover, before proceeding to step 3. It rests in an indention in the left side of the chassis and is easily broken. See Figure 6-16. 2

Figure 6-16

The Tray 1 Inner Cover is a plastic tray located at the top front of the printer. Remove the two self-tapping screws, (A) in Figure 6-17, holding the Cover to the front of the chassis.

Tray 1 Inner Cover Flag (view from inside printer, left side) 3

Hint

Remove the Top Cover (page 6-12), Left and Right Side Covers (page 6-23), and Front Cover and Tray 1 (page 6-18).

Facing the front of the printer, slip the Cover off of the locating pins.

To install a self-tapping screw, first turn it to the left until it clicks, indicating the threads are seated. Then, turn it to the right to tighten. Do not over-tighten. If a self-tapping screw-hole becomes stripped, repair of the screw-hole or replacement of the affected assembly is required.

6-24 Removing and Replacing Parts

EN

Figure 6-17

Hint

EN

Tray 1 Inner Cover (front of printer)

Item

Explanation

A

Screws

An extension of the Paper Sensor Flag fits into a slot in the Tray 1 Lift Plate (page 6-56). Orient the flag so that it aligns with both the slot and the indentation in the left side of the chassis.

Removing Covers 6-25

Right and Left Corner Covers These covers are each secured by one self-tapping screw. Remove the screw, and lift off the cover.

Figure 6-18

Right and Left Corner Covers

Item

Explanation

A

Corner Cover Screws

6-26 Removing and Replacing Parts

EN

Removing Assemblies Internal assemblies are shown in Figure 6-19. All references to the right and left are assumed to be relative to the front of the printer, unless otherwise specified.

Figure 6-19

EN

Internal Assemblies

Item

Explanation

A

Upper Delivery Assembly

B

Laser Scanner

C

Main Gear Assembly

D

Paper Handling PCA

E

Tray 1 Paper Guide Plate Assembly

F

Registration Assembly

Removing Assemblies 6-27

Transfer Roller Assembly CAUTION

Never touch the transfer roller with your fingers. Use unpowdered latex gloves if possible. Roll it up in a clean sheet of paper to protect it after removal. 1

Figure 6-20

Face the front of the printer, and lift the small green handle on the right side of the Registration Assembly, exposing the Transfer Guide (the metal plate that rests against the Transfer Roller). Remove the two self-tapping screws and carefully lift out the Transfer Guide. Be careful not to touch the Transfer Roller with your fingers.

Transfer Guide Removal

Item

Explanation

A

Screws

B

Transfer Guide

6-28 Removing and Replacing Parts

EN

Figure 6-21

Note

EN

Right Side of Transfer Roller

Item

Explanation

A

Clip

B

Cleaning Brush

The Transfer Roller is held on the right side by a hinged clip. 2

Free the Transfer Roller from the hinged clip by lifting straight up using the blue cleaning brush located inside of the top cover (Figure 6-21).

3

Free the left side of the Transfer Roller by lifting straight up. Remove the Transfer Roller, being careful not to touch the roller with your fingers.

Removing Assemblies 6-29

Fuser 1

Remove the Rear Door and Rear output bin (page 6-10).

2

Facing the back of the printer, remove the two machine screws holding the Fuser in the chassis. See Figure 6-22.

3

Using a small, flat bladed screw driver, lift at “D” to disengage the Fuser Assembly detents. Grasp the green Pressure Release Handles and pull the Fuser out of the chassis.

Note

The fuser power connection is on the left side of the assembly.

Figure 6-22

Fuser (rear view of printer)

Item

Explanation

A

Pressure Release Handles

B

Fuser

C

Screws

D

Screw driver lifting point

6-30 Removing and Replacing Parts

EN

Paper Handling PCA

Figure 6-23

Hint

EN

1

Remove the Top Cover (page 6-12) and Left Side Cover (page 6-23).

2

Facing the left side of the printer, disconnect the ribbon cable from the PCA.

3

Remove two self-tapping screws and two machine screws from the PCA.

4

Rotate the PCA outward, and disconnect the five cables. See Figure 6-23.

Paper Handling PCA

Item

Explanation

A

Cables

B

Ribbon Cable

To install a self-tapping screw, first turn it to the left until it clicks, indicating the threads are seated. Then, turn it to the right to tighten. Do not over-tighten. If a self-tapping screw-hole becomes stripped, repair of the screw-hole or replacement of the affected assembly is required. Removing Assemblies 6-31

Top Margin Adjustment When the terminal PCA is replaced in the field, the top margin needs to be re-adjusted. Also, if the top margin of test prints made after laser/scanner unit replacement is not 2.0 mm, this adjustment is necessary. The adjustment procedures are shown below.

Figure 6-24

1

After setting the VR401 on the terminal PCA to the center position (+/-0), set A4-sized paper in the tray. Press the test print switch to make several test prints.

2

Measure the length from the leading edge to the print pattern (“a” in Figure 6-24). Measure all the test prints and calculate the average.

3

Adjust VR401 so that the calculated value in step 2 becomes 2.0 mm. The pattern image shifts in the “+” direction in Figure 6-25 if VR401 is turned clockwise, and in the “-” direction, counterclockwise. Turning the VR401 one scale shifts the pattern about 0.8 mm. For instance, if the average value calculated in step 2 is 2.8 mm, the difference is 0.8 mm. Therefore, turn VR401 clockwise for one scale. (See Figure 6-25.)

4

Make several test prints again, and perform step 2. Check that the top margin is 2.0 mm. If the value is incorrect, repeat steps 1 through 4.

Adjusting the Top Margin

6-32 Removing and Replacing Parts

EN

Figure 6-25

EN

Location of VR401

Removing Assemblies 6-33

Main Gear Assembly

Figure 6-26

1

Remove the Top Cover (page 6-12) and the Left Cover (page 6-23).

2

The Main Motor is located on a PCA (see Figure 6-26) on the back side of the Gear Assembly. Disconnect the Main Motor Cable.

3

Remove five self-tapping screws and the grounding screw (spring-loaded machine screw) that hold the Gear Assembly to the chassis.

Main Gear Assembly, Left Side

Item

Explanation

A

Main Motor Cables

B

Self-tapping Screws

C

Grounding Screw

6-34 Removing and Replacing Parts

EN

Figure 6-27

Removing the Main Gear Assembly

Item

Explanation

A

Locating Tab

B

Engagement Arm

4

Rotate the bottom of the assembly out (Figure 6-27), and then lower it to release the Locating Tab (A) and remove the Main Gear Assembly.

CAUTION

Use caution when removing the assembly. The Toner Cartridge Engagement Arm may break if not handled carefully.

Hint

Remember to reconnect the cable at the top of the Main Gear Assembly after reinstalling it.

EN

Removing Assemblies 6-35

Pickup Gear Assembly

Figure 6-28

1

Remove the Top Cover (page 6-12), Left Side Cover (page 6-23), and the Paper Handling PCA (page 6-31).

2

Remove the four self-tapping screws from the Gear Assembly. Figure 6-28 shows the Assembly and the location of the screws.

3

Release the small spring (B) on the gear.

4

Remove the Gear Assembly from the chassis.

Pickup Gear Assembly (left side view of printer - Main Gear Assembly has not been removed)

6-36 Removing and Replacing Parts

EN

Hint

EN

Item

Explanation

A

Paper Feed Roller Assembly Gear

B

Location to Release Spring

C

Tray 2 Shaft Gear

D

Wire Clip

E

Screws

Before replacing the Pickup Gear Assembly, route the cables through the wire clip behind the Left Corner Cover. Reattach the spring from the Tray 2 Shaft Gear to the Paper Feed Roller Assembly Gear.

Removing Assemblies 6-37

Tray 1 Pickup Solenoid

Figure 6-29

1

Remove the Pickup Gear Assembly (page 6-36).

2

Remove the Tray 1 Solenoid by removing one black machine screw and sliding the Solenoid assembly away from the Pickup Gear Assembly.

Pickup Gear Assembly with Solenoid

Item

Explanation

A

Tray 1 Pickup Solenoid

6-38 Removing and Replacing Parts

EN

Fan

Figure 6-30

EN

1

Remove the Top Cover (page 6-12) and Right Side Cover (page 6-23).

2

Disconnect the cable that supplies power to the fan.

3

Remove the two self-tapping screws securing the fan to the chassis.

4

Remove the fan from the chassis.

Fan (right side view of printer)

Item

Explanation

A

Screws

B

Power Cables

Removing Assemblies 6-39

Formatter Assembly 1

Print a Configuration Page, if possible, to use as a reference when reinstalling the new formatter.

2

Remove any EIO accessories from the EIO slots.

3

Facing the back of the printer, loosen the two thumbscrews and slide the Formatter Assembly out.

4

Remove any DIMMs from the DIMM slots.

Figure 6-31

Formatter Assembly

Hint

After reinstalling the formatter, update the printer configuration if necessary, comparing the configuration to the Configuration page printed in step 1.

6-40 Removing and Replacing Parts

EN

Tray 1 Roller 1

Open the Top Cover and remove the Toner Cartridge.

2

Facing the front of the printer, raise the green center handle of the Registration Assembly.

3

Depress the locking tab on the right side roller cam, and slide the cam to the right.

4

Remove the D-Roller from the shaft.

Cam

Locking Tab

Figure 6-32

Tray 1 Roller

Hint

To reassemble the roller, orient the D-Roller so that the thumb grip is on the left. Then, slide the Roller between the two cams.

EN

Removing Assemblies 6-41

Tray 2 Roller

Figure 6-33

Hint

1

Remove the Paper Tray, and tilt the printer backwards, with the front of the printer facing up.

2

Depress the tab (A) on the right side cam, and slide the cam and the bushing to the right.

3

Rotate the D-Roller 180o and remove it from the shaft.

Tray 2 Roller (bottom view of printer)

Item

Explanation

A

Tab is behind this cam.

B

Cam

C

Bushings

To reassemble the roller, orient the pin on the D-Roller so that it lines up with the hole on the right side cam. Slide the cam toward the Roller until the tab snaps into place.

6-42 Removing and Replacing Parts

EN

Paper Feed Roller Assembly

Figure 6-34

EN

1

Remove the Top Cover (page 6-12), Left Side Cover (page 6-23), Main Gear Assembly (page 6-34), Paper Handling PCA (page 6-31), and Pickup Gear Assembly (page 6-36).

2

Remove the Paper Feed Roller Clutch (C) located on the left side of the Paper Feed Roller Assembly, below the Registration Assembly Clutch. Remove the E-Clip on the clutch, and slide the clutch off the shaft. If necessary, free the cable from the retaining clip on the inside of the chassis, behind the Left Corner Cover. See Figure 6-28 on page 6-36.

Paper Feed Roller Clutch (left side view of printer)

Item

Explanation

A

Tray 1 Shaft Gear

B

Registration Assembly Clutch

C

Paper Feed Roller Clutch

D

Tray 2 Shaft Gear

E

Wire Clip

Removing Assemblies 6-43

3

Figure 6-35

Remove the two machine screws in the center of the printer, under the Registration Assembly Roller Guide. See Figure 6-35.

Location of two “common” screws (inside printer)

Item

Explanation

A

Screws

4

Remove the paper tray, and tilt the printer back, with the front facing up.

5

Remove the five self-tapping screws that hold the Paper Feed Roller Assembly to the chassis. They are located on the bottom of the printer. See Figure 6-36.

6-44 Removing and Replacing Parts

EN

Figure 6-36

Paper Feed Roller Assembly (bottom view of printer)

Item

Explanation

A

Screws

6

EN

Remove the Paper Feed Roller Assembly from the chassis, while feeding the cable back through the hole in the chassis.

Removing Assemblies 6-45

DC Controller Board and Power Supply This assembly contains two PCAs. One houses the DC Controller and the High-Voltage Power Supply, and the other contains the LowVoltage Power Supply. 1

Remove the Top Cover (page 6-12), Left and Right Side Covers (page 6-23), and the Formatter Assembly (page 6-40).

2

Disconnect four cables on the right side of the chassis. (The fourth may have been disconnected during fan removal (page 6-39) already.) For the two large connectors, use a flatblade screwdriver to release the locks by pressing down on the tabs on top of the connectors. Be sure to pull the cables away from the chassis.

3

The remaining connections are located on the left side of the chassis. Disconnect the ribbon cable, the 2-pin, the 3-pin, and the two 20-pin connectors. Be sure to pull the cables away from the chassis.

4

Remove five screws on the back side of the chassis (Figure 6-37). Two machine screws (A) are located on the top surface of the metal housing, one machine screw (C) has a lock washer and a ground wire, and two self-tapping screws (B) are located at the bottom of the DC Controller Assembly.

6-46 Removing and Replacing Parts

EN

Figure 6-37

EN

DC Controller Assembly (rear view of printer)

Item

Explanation

A

Machine Screws

B

Self-tapping Screws

C

Lock Washer/Grounding Wire

Removing Assemblies 6-47

Figure 6-38

DC Controller Assembly (long screws)

Item

Explanation

A

Long Screws

5

Remove the two screws (A) (Figure 6-38) located at the back of the DC Controller Assembly, inside the chassis. These are long screws; their position requires the use of a magnetized screwdriver.

6

Facing the rear of the printer, remove the two spring-loaded machine screws closest to the ground wire removed in step 4 above. Remove the spring-loaded machine screw closest to you on the right side.

7

Slide the DC Controller Assembly out of the rear of the chassis.

6-48 Removing and Replacing Parts

EN

8

Figure 6-39

Hint

EN

The boards are linked by a ribbon cable and held onto the tray with four screws each. Carefully remove the ribbon cable that connects them, and loosen the screws on the board you wish to remove.

DC Controller Assembly

Item

Explanation

A

Power Supply PCA

B

Ribbon Cable

C

DC Controller PCA

To prevent damage to the high voltage contacts, the Paper Feed Belt Assembly needs to be installed before the DC Controller is reinstalled.

Removing Assemblies 6-49

Paper Feed Belt Assembly 1

Remove the Top Cover (page 6-12), Left Cover (page 6-23), and Main Gear Assembly (page 6-34), DC Controller (page 6-46), and Transfer Roller Assembly (page 6-28).

2

Facing the front of the printer, remove the machine screws on each side of the Belt Assembly.

3

Raise the Registration Assembly by the small green handle, and lift out the Belt Assembly.

4

Remove the plastic guide (A) in Figure 6-41 and replace the belts if necessary. The guide snaps back in after belt replacement.

.

Figure 6-40

Paper Feed Belt Assembly

Item

Explanation

A

Paper Feed Belt Assembly Screws

6-50 Removing and Replacing Parts

EN

Figure 6-41

Note

EN

Paper Feed Belt Assembly (removed)

Item

Explanation

A

Location where guide snaps out with two tabs on bottom

B

This edge has a metal ridge with sharp teeth. Use Caution.

To prevent damage to the high voltage contacts, the Feed Belt Assembly MUST be reinstalled prior to the installation of the DC Controller.

Removing Assemblies 6-51

Tray 1 Shaft

Figure 6-42

1

Remove the Top Cover (page 6-12), Left and Right Side Covers (page 6-23), Pickup Gear Assembly (page 6-36), and Paper Handling PCA (page 6-31).

2

Raise the green center handle of the Registration Assembly.

3

Remove the plastic collar on the right, outside the chassis, by pulling outward on the collar’s release tab and sliding the collar off the shaft.

4

Release the collar on the inside right of the chassis by pulling UP on the release tab, and sliding the collar to the left. See Figure 6-42.

Tray 1 Shaft (right side view of printer)

Item

Explanation

A

Locking Tab

6-52 Removing and Replacing Parts

EN

Hint

EN

5

Release the tabs of the gear on the left side of the shaft, outside the chassis, and slide the gear off.

6

Slide the shaft to the right, and then angle it out of the chassis.

Item

Explanation

A

Tray 1 Shaft Gear

B

Tray 1 Release Tabs

Make sure that the Tray 1 Lift Plate (with spring) is pressed down before installing the Tray 1 Shaft. The Shaft captivates the Tray 1 Lift Plate, and must be installed on top of it.

Removing Assemblies 6-53

Tray 2 Shaft

Figure 6-43

1

Remove the Top Cover (page 6-12), Left and Right Side Covers (page 6-23), Pickup Gear Assembly (page 6-36), and Paper Handling PCA (page 6-31).

2

Remove the spring from the gear on the left side of the shaft.

3

Align the solenoid arm (B) (see Figure 6-43) with the gap in the gear (on the left side of the printer).

4

Press the release tabs (A) outward, and slide the gear off the shaft.

5

Remove the bushing on the right side of the shaft by lifting the release tab and sliding it off the shaft.

6

Slide the shaft to the right, then angle it out of the chassis.

Tray 2 Shaft (left side view of printer)

Item

Explanation

A

Release Tabs

B

Solenoid Arm

C

Gap

6-54 Removing and Replacing Parts

EN

Reassembly Steps:

Figure 6-44

EN

1

Tip the printer back, so that the front faces up.

2

Insert the shaft into the fitting on the right side. Then, angle the shaft into the other side.

3

Place the bushing on the right end of the shaft, and push until the tab locks in the indentation in the shaft.

4

Facing the left side of the printer, orient the shaft so that the open end points away from the solenoid. See Figure 6-44.

5

Depress the solenoid arm, and slide the gear into place. Press it into the plastic collar until it locks in place.

6

Reinstall the spring on the arm of the gear.

Reassembly of Tray 2 Shaft

Item

Explanation

A

Direction to Orient Shaft

Removing Assemblies 6-55

Tray 1 Lift Plate

Figure 6-45

1

Remove the Front Cover (page 6-18), Tray 1 Shaft (page 6-52), Top Cover (page 6-12), Left and Right Side Covers (page 6-23).

2

Rotate the Tray 1 Lift Plate until the opening of the hook faces up. Then, press down on each hook until it slips off the shaft on which it is mounted. When you remove the Lift Plate, be careful not to lose the spring, as it is not captive.

Tray 1 Lift Plate

Item

Explanation

A

Spring

B

Tray 1 Lift Plate

C

Hooks

D

Paper Sensor Flag Slot

6-56 Removing and Replacing Parts

EN

Tray 1 Separation Pad

Figure 6-46

EN

1

Rotate the Separation Pad 90o toward you, so that it is oriented up.

2

Lift the assembly out of the slots. Be sure not to lose the spring, which is not captive.

Tray 1 Separation Pad

Removing Assemblies 6-57

Paper Guide

Figure 6-47

1

Lift the green handle in the middle of the Registration Assembly.

2

Release the Guide by freeing the end pins and the clips in the middle, then lift the Paper Guide out.

Paper Guide

Item

Explanation

A

Green Handles

B

Paper Guide

C

End Pins

6-58 Removing and Replacing Parts

EN

Paper Path Detect Sensor

Figure 6-48

EN

1

Remove the Paper Tray. Remove the Top Cover (page 6-12), Left Side Cover (page 6-23), Pickup Gear Assembly (page 6-36), and Paper Handling PCA (page 6-31).

2

Remove the two screws securing the Sensor to the chassis.

3

Remove the Sensor, feeding the cable through the opening in the chassis.

Paper Path Detect Sensor

Item

Explanation

A

Screws

Removing Assemblies 6-59

Face Down Bin Full Sensor

Figure 6-49

1

Remove the Top Cover (page 6-12), Rear Door/Rear Output Bin (page 6-10), and Left and Right Side Covers (page 6-23).

2

The Face Down Bin Full Sensor is located on the top of the Upper Delivery Assembly. Release the two clips (A) (Figure 6-50), and slide the Sensor to the right to remove it.

Face Down Bin Full Sensor

Item

Explanation

A

Direction to slide sensor to remove it

6-60 Removing and Replacing Parts

EN

Figure 6-50

EN

Detail of Bin Full Sensor

Item

Explanation

A

Clips

Removing Assemblies 6-61

Power Connection

Figure 6-51

1

Remove the Top Cover (page 6-12), Left Side Cover (page 6-23), and Rear Door / Rear Output Bin (page 6-10).

2

Disconnect the two cables from the Power Connection.

3

Remove the two self-tapping screws.

4

Remove the Power Connection.

Power Connection

Item

Explanation

A

Cables

B

Screws

6-62 Removing and Replacing Parts

EN

Registration Assembly

Figure 6-52

EN

1

Remove the Top Cover (page 6-12), Left Side Cover (page 6-23), Pickup Gear Assembly (page 6-36), and the Main Gear Assembly (page 6-34).

2

Release the E-ring on the Registration Assembly Clutch, and remove the Clutch (Figure 6-34 on page 6-43).

3

Remove the two “common” machine screws in the top middle of the printer. (These screws are already removed if you have removed the Paper Feed Roller Assembly. They are common between the Paper Feed Roller Assembly and the Registration Assembly. Refer to page 6-44 for screw location.)

4

Remove the four self-tapping screws inside the chassis. (Lift up the small green handle of the Registration Assembly to access two of these screws.)

5

Lift the Registration assembly out of the chassis.

Registration Assembly

Item

Explanation

A

Screw location

Removing Assemblies 6-63

Figure 6-53

Hint

Registration Assembly Clutch

Item

Explanation

A

Flat

B

Alignment Tab

C

Stabilizer

When reinstalling the clutch, orient the shaft with the flat spot up. When the clutch slides on, the slotted metal alignment tab will seat onto a plastic stabilizer. Make sure that the cable is situated away from the Registration Assembly before you reinstall the Assembly.

6-64 Removing and Replacing Parts

EN

Upper Delivery Assembly 1

Figure 6-54

Upper Delivery Assembly (rear left view of printer)

Item

Explanation

A

Upper Delivery Assembly

B

Delivery Roller

2

EN

Remove the Top Cover (page 6-12), Rear Door/Rear Output Bin (page 6-10), and Left and Right Side Covers (page 6-23), Main Gear Assembly (page 6-34),.

Face the left side of the printer. The Delivery Assembly is secured with tabs on each side. Use a screwdriver to gently release the tab on the inside, and then lift the assembly out. Be careful not to lift it too high until you release the tab on the opposite side. See Figure 6-55.

Removing Assemblies 6-65

Figure 6-55

Upper Delivery Assembly Tabs 3

Hint

The Face Down Bin Full Sensor is on the left side of the Upper Delivery Assembly (page 6-60). Be careful not to damage it as you slide the Delivery Assembly out of the chassis.

To reassemble the Upper Delivery Assembly, slide the unit straight down to lock it in place. Make sure the Face Down Bin Full Sensor is free to move on the left side.

6-66 Removing and Replacing Parts

EN

Delivery Roller Removal 1

Figure 6-56

EN

Remove the Top Cover (page 6-12) the Left and Right Side Covers (page 6-23), Rear door/Rear Output Bin (page 6-10), Main Gear Assembly (page 6-34), and the Upper Delivery Assembly (page 6-65).

Delivery Roller Components

Item

Explanation

A

Rollers

B

Lower Delivery Rollers

C

Delivery Roller

2

Facing the left side of the printer, insert a flat-blade screwdriver as shown in Figure 6-57, and twist gently to release the tab on the right side of the Delivery Roller.

3

Release the tab on the left side in the same manner.

4

After freeing both locking tabs, gently pull forward on the Delivery Roller to remove it. Removing Assemblies 6-67

Figure 6-57

Hint

Right Delivery Roller Tab 5

The Lower Delivery Rollers may fall out. When you replace them, make sure they align with the indentations in the chassis.

6

Individual Rollers, located above the Lower Delivery Rollers, may be removed by using a flat-blade screwdriver to push gently on the top side of the Roller. The Roller will be released by the action of the spring.

When reinstalling the roller, re-align the Lower Delivery Rollers after you reinstall the Delivery Roller.

6-68 Removing and Replacing Parts

EN

Laser Scanner Assembly

Figure 6-58

EN

1

Remove the Top Cover (page 6-12) and the Face Down Assembly Base (page 6-21).

2

Facing the back of the printer, remove the four black screws holding the assembly to the chassis.

3

Disconnect the cables B, C, and D on each side of the assembly.

4

Remove the protective plastic and disconnect the 4-pin connector on the back of the Laser Scanner Assembly.

5

Lift the Laser Scanner Assembly out of the chassis.

Laser Scanner Assembly (top inside view of printer)

Item

Explanation

A

Screws

B

3-Pin Connector

C

8-Pin Connector

D

4-Pin Connector, under protective foam

E

Screws

F

Protective Plastic

Removing Assemblies 6-69

Main Motor

Figure 6-59

1

Remove the Main Gear Assembly (page 6-34).

2

Remove the three screws securing the motor to the back of the Main Gear Assembly.

3

Carefully separate the motor from the Gear Assembly.

Main Gear Assembly with Motor (rear view)

Item

Explanation

A

Screws

6-70 Removing and Replacing Parts

EN

Toner Cartridge Guides

Figure 6-60

Hint

EN

1

Remove the Top Cover (page 6-12) and Left and Right Side Covers (page 6-23).

2

Release the “leading” tab (A) first. See Figure 6-60.

3

Rotate the Guide in the direction shown to unlock the remaining two tabs.

4

Slide the Guide out of the chassis

Toner Cartridge Guide

Item

Explanation

A

Leading Tab

B

Tabs

To reinstall the Guide, insert the two “non-leading” tabs (B) first. Twist counter-clockwise to lock. Gently flex the “leading” tab (A) so that it will fit into the slot easily. Then snap the Guide into place.

Removing Assemblies 6-71

Power Inlet Assembly

Figure 6-61

1

Remove the Top Cover (page 6-12) and the Right Side Cover (page 6-23).

2

Remove the Switch Rod by flexing it slightly and unhooking it from the switches on each end.

3

Remove the three self-tapping screws (B) from the Power Inlet housing.

4

Remove the machine screw (A) and grounding wire.

Power Inlet Assembly (right side view of printer)

Item

Explanation

A

Grounding Wire Screw

B

Screws

6-72 Removing and Replacing Parts

EN

Optional 500-sheet Tray Disassembly

Figure 6-62

EN

1

Using a flathead screwdriver, release the locking tabs by pressing down in the locking tab location slots.

2

Remove the right and left auxiliary covers, and the front cover.

Optional 500-sheet Tray (top view)

A

Locking Tabs

B

Auxiliary covers

C

Front cover

Optional 500-sheet Tray Disassembly 6-73

Figure 6-63

500-sheet Tray (top view with covers removed)

A

3

Self-tapping screws

Remove the nine self-tapping screws.

6-74 Removing and Replacing Parts

EN

Tray Indicator Assembly

Figure 6-64

EN

1

Remove the left front corner cover screw.

2

Remove the cover.

3

Remove the Tray Indicator Assembly.

Removing the Tray Indicator Assembly

A

Left Corner Cover screw

B

Tray Indicator Assembly

Optional 500-sheet Tray Disassembly 6-75

Left Front Corner Cover Installation 1

Install the Tray Indicator Assembly.

2

Depress the indicator to ensure the Tray Indicator Limit Tab is between the upper and lower limit stops.

Note

Ensure that the Tray Indicator operates correctly.

Figure 6-65

Installing the Left Front Corner Cover

A

Tray Indicator Limit Tab

B

Upper Limit Stop

C

Lower Limit Stop

6-76 Removing and Replacing Parts

EN

Paper Size Spring Assembly

Figure 6-66

1

Remove the Paper Size Spring Assembly by disengaging the locking tabs from the left frame assembly.

2

Lift straight up to separate the internal component assembly from the frame assembly.

Removing the Paper Size Spring Assembly

A

EN

Paper Size Spring Assembly

Optional 500-sheet Tray Disassembly 6-77

D-Roller and Feed Roller Feed Roller Removal 1

Pinch the Feed Roller Tab and slide it off of the shaft.

D-Roller Removal

Figure 6-67

1

Disengage the Spring (B).

2

Remove the Pickup Roller Shaft from the Retaining Clips.

3

Depress the Locking Tab on the D-Rollers and remove it from the shaft.

Removing the Feed Roller and D-rollers

A

Feed Roller

B

Spring

C

Pickup Roller Shaft Retaining Clips

D

Paper Sensor Flag

E

D-rollers

F

Joint Auxiliary Shaft

6-78 Removing and Replacing Parts

EN

Gear Assembly and PCA

Figure 6-68

EN

1

Remove the Gear Assembly by removing the six small selftapping screws.

2

Remove the 500-sheet Feeder PCA by removing the two machine screws (C).

3

Remove the Paper Size Switch PCA by removing the two machine screws.

Removing the Gear Assembly and PCA

A

Paper Size Switch PCA

B

Small, Self-tapping Screws

C

Machine Screws

Optional 500-sheet Tray Disassembly 6-79

Power Connector 1

Figure 6-69

Remove the Power Connector by removing the two screws (A).

Removing the Power Connector

A

6-80 Removing and Replacing Parts

Screws

EN

Separation Roller

Figure 6-70

EN

1

Lift the Return Cover.

2

Pinch the Separation Roller Tab.

3

Slide the Separation Roller off of the shaft and remove.

Removing the Separation Roller

A

Separation Roller

B

Return Cover

Optional 500-sheet Tray Disassembly 6-81

6-82 Removing and Replacing Parts

EN

7

Troubleshooting

Overview This chapter discusses the following:

EN



Troubleshooting Process



Troubleshooting the Printing System



General Troubleshooting Information



Reference Diagrams

Overview 7-1

Troubleshooting Process The troubleshooting process is a systematic approach that addresses the major problems first, then other problems as you identify the causes for printer malfunctions and errors. The Troubleshooting Process Flow on page 7-4 illustrates the major steps for troubleshooting the printing system. Each heading depicts a major troubleshooting step. A YES answer to the questions allows you to proceed to the next major step. A NO answer indicates that additional testing is needed. Proceed to the referenced location and follow the directions for that area. After completing the additional testing, proceed to the next major step. The following list describes the basic questions for the customer and the corresponding troubleshooting step to help you quickly define the problem(s). Table 7-1. Major Steps for Troubleshooting Power On (page 7-7)

Does the printer perform the initialization and power-on steps? This section gives the procedures for correcting power supply problems.

Display (page 7-11)

Does the Control Panel indicate READY, OFFLINE, or POWERSAVE

ON? This section gives the procedures for clearing Control Panel error messages and displaying and correcting Event Log codes.

Event Log (page 7-12)

Are there recurring problems in the Event Log? This section gives information about printing the Event Log and evaluating the error history.

General Paper Path Troubleshooting (page 7-40)

Is there a paper jam in the printer?

Information Pages (page 7-43)

Will the printer print information pages successfully?

This section gives information about solving problems in the paper path.

This section gives the procedures for printing the information pages and evaluating and correcting the printer’s configuration.

7-2 Troubleshooting

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Table 7-1. Major Steps for Troubleshooting (continued) Image Quality (page 7-48)

Does the print quality meet the customer’s expectations? This section gives Toner Cartridge checks, information on EconoMode, image defect examples, and the repetitive defect ruler.

Interface Troubleshooting (page 7-76)

Can the customer print from the host system successfully? This section describes how to determine if the printer is communicating properly with the host system.

EN

Troubleshooting Process 7-3

Troubleshooting Process Flow

7-4 Troubleshooting

EN

EN

Troubleshooting Process 7-5

Troubleshooting the Printing System Preliminary Operating Checks Prior to troubleshooting a specific printer problem, you should ensure that:

Note



The printer is being maintained on a regular basis as described in Chapter 4.



The customer is using acceptable paper as specified in the HP LaserJet Printer Family Paper Specifications Guide.



The printer is positioned on a solid, level surface.



The line voltage does not vary more than 10% from the nominal rated value as specified on the Power Rating Label.



The operating environment for the printer and paper is within the temperature and humidity specifications listed in Chapter 1 of this manual.



The printer is never exposed to ammonia fumes such as those produced by diazo copiers or office cleaning materials.



The printer is not exposed to direct sunlight.



Non-HP components (such as refilled Toner Cartridges, font cartridges, and memory boards) are removed from the printer.

When moving the printer into a warm room from a cold location such as a warehouse, various problems can occur due to condensation in the printer. For example, if the photosensitive drum is cold, the resistance of the photoconductive layer will be high. This will lead to incorrect contrast. Leave the printer running for 10 to 20 minutes.

7-6 Troubleshooting

EN

Power On It is important to have the printer’s Control Panel functional as soon as possible in the troubleshooting process so that the printer’s diagnostics can assist in locating printing errors. Table 7-2. Power on Defect or Blank Display Problem

Action

Is the power cord plugged into the wall and the printer? Is AC and DC power available?

Verify. See table 7-3, “No AC Power,” on page 7-8 and table 7-4, “No DC Power,” on page 7-9.

Is the power switch set to on?

Set the switch to the on position. You should hear the switch toggle. If the Front Right Side Cover has been removed recently, be sure that the rod leading to the power supply moves as the rocker switch is toggled.

Does the Fan turn on when Note: Fan operation is significant since the Fan is controlled by you turn on the printer? the printer’s Engine Controller Board. An operational Fan indicates the following: 1. AC power is present in the printer. 2. DC power supply is functional (24 VDC, 5 VDC, and 3.4 VDC are being generated). If the Fan is not working: 1. Turn off the printer and remove the printer’s Formatter PCA. Disconnect all the printer’s paper handling options. 2. Turn on the printer and check the Fan again. If the Fan is still not working, perform the following steps: 1. Verify that the Fan is connected to the DC Controller Assembly. 2. Replace the Fan. 3. Replace the Power Supply. If the Fan is working but the printer’s Control Panel is blank: 1. Print an engine test. See “Engine Test” on page 7-9. If the engine test is successful, perform the following steps: a. Reseat the Control Panel and Formatter connector. b. Replace the Control Panel assembly. c. Replace the Formatter. d. Replace the cable from the Control Panel. 2. If the engine test is not successful, replace the Power Supply.

EN

Troubleshooting the Printing System 7-7

Table 7-3. No AC Power Cause

Action

No correct voltage present at the outlet.

Plug the power cord into another AC circuit outlet. Inform the customer that the correct line voltage is not available at the outlet.

The power cord is not firmly plugged into the printer and the outlet.

Insert the power plug firmly.

Blown fuse.

1. Check the fuse (F1) on the Power Supply. 2. Replace the fuses if necessary.

Defective power switch.

Remove the DC Controller Assembly. Measure the resistance between the two terminals of the power switch (SW101) by applying the tester probes to the terminals. The resistance must be low (under 1 KΩ) when the power is turned ON, and high (over 6 MΩ) when the switch is turned OFF. Otherwise, replace the Power Supply.

Defective AC receptacle or AC power line.

Check the printer’s AC receptacle and wiring for the AC power line. If no problem is found, replace the Power Supply.

7-8 Troubleshooting

EN

Table 7-4. No DC Power Cause

Action

No AC power is supplied.

Check the AC power supply. See table 7-3, “No AC Power,” on page 7-8

The overcurrent/overvoltage detection circuit activated.

If the problem is not rectified after the power switch is turned off and on again, find the cause of activation of the overcurrent/ overvoltage detection circuit in the power supply. Wait for more than two minutes before turning the printer back on.

Blown fuse.

1. Check the fuses (F2) on the Power Supply. 2. Replace the fuses if necessary.

Defective power supply unit

Replace the power supply unit.

Engine Test The engine test verifies that the print engine is functioning correctly. The Formatter PCA is completely bypassed during an engine test. This test is very useful for isolating printer problems. The engine test prints a full page of lines across the entire printable area, and is also useful for checking and adjusting registration. The engine test prints from the “Cold Reset Paper Tray” and can be activated with the Formatter PCA removed. Note

EN

The “Cold Reset Paper Tray” must be loaded with paper to perform an engine test. Also, ensure that the Toner Cartridge is installed in the printer.

Troubleshooting the Printing System 7-9

Engine Test Button Location The engine test verifies that the print engine is functioning correctly. The Formatter PCA is completely bypassed during an engine test. This test is very useful for isolating printer problems. The engine test prints a full page of lines across the entire printable area, and is also useful for checking and adjusting registration. Note

Engine test will print from the last input tray used. If the last input tray is empty or if the last input source was the duplexer, then the Engine Test will print from Tray 2 (standard 250 CST). If Tray 2 is empty (and the last input tray is empty or the last input source was the duplexer), then the Engine Test will not function.

Figure 7-1

Location of the Engine Test Button

Printing an Engine Test To print an engine test, use a non-metallic object (such as a pencil) to press the engine test button. A single test page with horizontal lines will be printed. To print multiple test pages, hold down the engine test button.

7-10 Troubleshooting

EN

Display The Control Panel should display READY, OFFLINE, or POWERSAVE ON. For information about errors displayed, access the Event Log. If the display is blank, see “Preliminary Operating Checks” on page 7-6.

EN

Troubleshooting the Printing System 7-11

Event Log Use the Event Log to diagnose and troubleshoot printer errors and intermittent failures. You can either display or print the Event Log. Access the Event log from the Control Panel’s Information Menu. (Select PRINT EVENT LOG or SHOW EVENT LOG.) The Event Log retains the printer’s last 30 error messages. See the tables starting on page 7-16 for more information about correcting Event Log messages on the printer. Note

The Event Log codes and the error on the Control Panel do not always correspond exactly. The numbers in the Control Panel message may not be the same in the Event Log; the decimal numbers may be shifted by one digit. For example, 13.1 on the control panel reads 13.01 in the Event Log. Refer to the correct number in the tables starting on page 7-16.

7-12 Troubleshooting

EN

Figure 7-2

EN

Event Log Page

Troubleshooting the Printing System 7-13

Display the Event Log If the printer cannot print or move any paper, follow these steps to display the Event Log. 1

Press [Menu] until INFORMATION MENU appears.

2

Press [Item] until SHOW EVENT LOG appears.

3

Press [Select] to show the Event Log.

4

Press [+] to scroll through the Event Log.

5

Write down the error messages.

6

Check the Event Log for specific error trends in the last 10,000 printed pages.

7

Ask the customer for any observed error trends. (For example, do paper jams tend to occur in a specific area of the printer?)

8

Record any specific error trends.

9

See Table 7-5, “Alphabetical Printer Messages,” on page 7-16 or Table 7-6, “Numerical Printer Messages,” on page 7-26 and follow the recommended action.

10 If the Control Panel displays READY, OFFLINE, or POWERSAVE ON, go to the next section. If it indicates any other message, repeat this section from step 1.

Print the Event Log The printer’s internal Event Log stores the last 30 errors and can be printed at any time. To print the Event Log: ●

Press [Menu] until INFORMATION MENU appears.



Press [Item] until PRINT EVENT LOG appears



Press [Select] to print the Event Log.

Interpret the Event Log The Event Log is the key tool in troubleshooting printer problems. Figure 7-2 shows a typical Event Log. The Event Log shows the current page count at the top left of the page with the printer’s serial number directly to the right of the page count. The left column is the error sequence number, with the error listed at the top (the highest sequence number is the most recent error logged). The next column is the page count at the time of the error, and the last column is the Personality (PCL or PostScript) column or the cause of the jam at the time of the error.

7-14 Troubleshooting

EN

The Event Log may record errors in a different format than the Control Panel Display. For example, should a 50.1 FUSER ERROR / CYCLE POWER be displayed on the Control Panel, the Event Log will record a 50.02.01 error, with the 02 signifying that 2 sensors were blocked. Likewise, when a 13.1 through 13.9 are displayed on the Control Panel, the Event Log will record a 13.0x.01 through 13.0x.09, where x= the number of sensors blocked in the printer. Hint

Whenever a 13.xx appears on the Control Panel, a good practice is to clear all the jammed paper from the printer and print the Event log. If you cannot print the Event Log, you can still display it on the Control Panel. Write the error next to the last error logged. The last error is the error at the top of the Event Log printout with the highest number in the left-most column. To interpret the Event Log:

EN



Each individual entry in the log is called an “error,” and all errors occurring at the same page count are called an “event”. Read the Recommended Action for each error comprising an event to gain a clear picture of what took place during that event. Events usually conclude with a time-out, or no response from device (Error 66.xx in the Event Log) which requires a power cycle of the print engine.



Use the Event Log table in this section to associate errors in the Event Log with the Control Panel error message. Follow the Recommended Action listed in the table for each error or event.

Troubleshooting the Printing System 7-15

Printer Messages The following table explains messages that might display on the printer’s Control Panel. Alphabetical printer messages and their meanings are listed in Table 7-5, and numerical printer messages are listed in Table 7-6. Hint

If the message persists requesting that you load a tray, or if a message indicates that a previous print job is still in the printer’s memory, press [GO] to print or press [Cancel Job] to clear the job from the printer’s memory.

Note

Not all messages are described (many are self-explanatory). Some printer messages are affected by the Auto Continue and Clearable Warning settings from the Configuration Menu in the printer’s Control Panel. If CLEARABLE WARNING=JOB is set on the Control Panel, warning messages display on the Control Panel until the end of the job from which they were generated. If CLEARABLE WARNING=ON is set, warning messages display on the Control Panel until [Go] is pressed. If an error occurs that prevents printing and AUTO CONTINUE=ON is set, the printer goes offline for 10 seconds before it returns online. If AUTO CONTINUE=OFF is set, the message displays until [Go] is pressed.

Table 7-5. Alphabetical Printer Messages Control Panel Message

Event Log Explanation Message

Recommended Action

ACCESS DENIED MENUS LOCKED

The Control Panel function you are trying to access has been locked by the network administrator to prevent unauthorized access.

Ask the Network Administrator to unlock the function.

BAD DUPLEXER CONNECTION

The Duplexer is not connected properly.

1. Re-install the duplexer. 2. If the message persists make sure the duplexer is connected and the connector is not damaged. 3. Replace the Duplexer.

7-16 Troubleshooting

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Table 7-5. Alphabetical Printer Messages (continued) Control Panel Message

Event Log Explanation Message

Recommended Action

BAD OPT TRAY CONNECTION

The optional tray is not connected properly.

CANNOT DUPLEX REAR BIN OPEN

The printer cannot duplex Close the rear output bin. because the rear output bin is open.

CHECK INPUT DEVICE

The optional input tray cannot feed paper to the printer because a door or tray is open.

1. Check the doors and trays. 2. If doors and trays are closed, check tabs and sensor levers in the tray for proper operation. Replace any defective tabs or sensors. 3. Replace the PCA Controller in the feeder.

CHOSEN LANGUAGE NOT AVAILABLE

A print job requested a printer language that does not exist in the printer. The job will not print and will be cleared from memory.

1. Print the job using a driver for a different printer language, or add the requested language to the printer (if available). 2. Press [Go] to continue.

DISK DEVICE FAILURE

The EIO disk had a critical Reseat the EIO device or failure and can no longer replace it with a new one. be used.

alternates with

PAPER PATH OPEN PLEASE CLOSE IT

EN

1. Re-install the optional tray. 2. Make sure the optional tray is connected and the connector is not damaged. 3. Replace the optional tray.

Troubleshooting the Printing System 7-17

Table 7-5. Alphabetical Printer Messages (continued) Control Panel Message

Event Log Explanation Message

Recommended Action

DISK FILE OPERATION FAILED

The requested operation could not be performed. You might have attempted an illegal operation, such as trying to download a file to a non-existent directory.

1. Check the filename and directory name. 2. Retry the task.

DISK FILE SYSTEM IS FULL

The disk is full.

1. Delete files from the EIO disk and then try again, or add a flash DIMM. 2. Download or delete files from HP JetAdmin, and download or delete fonts from HP FontSmart. (See the software help for more information.)

DISK IS WRITE PROTECTED

The EIO disk is protected, Disable the write protection through and no new files can be HP JetAdmin. written to it.

FLASH DEVICE FAILURE

The Flash DIMM had a critical failure and no longer can be used.

Remove the Flash DIMM and replace it with a new one.

FLASH FILE OPERATION FAILED

The requested operation could not be performed. You might have attempted an illegal operation, such as trying to download a file to a non-existent directory.

Remove the flash DIMM and replace it with a new one.

7-18 Troubleshooting

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Table 7-5. Alphabetical Printer Messages (continued) Control Panel Message

Event Log Explanation Message

Recommended Action

FLASH FILE SYSTEM IS FULL

The flash DIMM is full.

1. Delete files from the Flash DIMM or add another DIMM. 2., Download or delete files from HP JetAdmin, and download or delete fonts from HP FontSmart. (See the software help for more information.)

FLASH IS WRITE PROTECTED

The flash DIMM is protected, and no new files can be written to it.

Disable the write protection through HP JetAdmin.

INITIALIZING

If the message displays continually a DIMM may not be inserted completely.

Reseat DIMM(s).

INPUT DEVICE CONDITION xx.yy

An input paper handling device has a condition that needs attention before printing can resume. 1st X= Device number in chain. 2nd X= Device type (3 types): 1 Input 2 Output 3 Stapler/ stacker unit yy= Device specific error.

See the documentation that came with the paper handling device for assistance.

INSTALL FRONT DUPLEX COVER

Re-insert the duplexer’s The printer is unable to front cover. print the current job, because the duplexer’s front cover is not installed, or not inserted correctly.

EN

Troubleshooting the Printing System 7-19

Table 7-5. Alphabetical Printer Messages (continued) Control Panel Message

Event Log Explanation Message

Recommended Action

INSTALL TRAY x

The printer is unable to print the current job because the specified tray (x) is open or not inserted correctly.

LOADING PROGRAM

Wait for the program to Programs and fonts can be stored on the printer’s load. file system. At bootup time these entities are loaded into RAM. (These entities can take a long time to load into RAM depending on the size and number of entities being loaded.) The specifies a sequence number indicating the current program being loaded.

alternates with

DO NOT POWER OFF

MANUALLY FEED [TYPE] [SIZE]

7-20 Troubleshooting

One of the following occurred: A manual feed was requested. There is no paper in Tray 1. The wrong size of paper is loaded. The Control Panel is not set for the kind of paper loaded.

1. Re-insert the specified tray. 2. Check for damaged tabs in the tray. 3. Check for damaged switches in the printer. 4. Replace the PCA Controller in the feeder.

1. Load the requested paper into Tray 1. 2. Press [Go] if the desired paper is already loaded in Tray 1. 3. Press [-Value+] to scroll through the available types and sizes. 4. Press [Select] to accept the alternate type or size.

EN

Table 7-5. Alphabetical Printer Messages (continued) Control Panel Message

Event Log Explanation Message

Recommended Action

MEMORY FULL STORED DATA LOST

There is no available memory in the printer. The current job might not print correctly and some resources (such as downloaded fonts or macros) might have been deleted.

The customer might want to add more memory to the printer, or simplify the print job.

MEMORY SETTINGS CHANGED

The printer changed its memory settings because it did not have enough memory to use the previous settings for I/O Buffering and Resource Saving. This usually occurs after removing memory from the printer, adding a Duplexer, or adding a printer language.

You might want to change memory settings for I/O Buffering and Resource Saving (although default settings are usually best) or add more memory to the printer.

MEMORY SHORTAGE JOB CLEARED

The printer did not have enough free memory to print the entire job. The remainder of the job will not print and will be cleared from memory.

1. Press [Go] to continue. 2. Change the Resource Saving setting from the printer’s Control Panel or add more memory to the printer.

MEMORY SHORTAGE PAGE SIMPLIFIED

The printer had to compress the job in order to fit it in available memory. Some data loss might have occurred.

Press [Go] to continue. The customer might want to add more memory to the printer.

OFFLINE

The printer is offline.

Press [Go] to place the printer online.

EN

Troubleshooting the Printing System 7-21

Table 7-5. Alphabetical Printer Messages (continued) Control Panel Message

Event Log Explanation Message

Recommended Action

PERFORM PRINTER MAINTENANCE

To ensure optimum print quality, the printer prompts the customer to have routine maintenance performed every 150,000 pages.

Install the Printer Maintenance Kit. Be sure to reset the Maintenance Page Count when you install the PM Kit. See page 3-34 for information on resetting the Maintenance Page Count.

RAM DISK DEVICE FAILURE

The RAM disk had a critical failure and can no longer be used.

1. Turn the printer off, and then turn the printer on to clear the message. 2. If the message persists, install a new RAM disk.

RAM DISK FILE OPERATION FAILED

The requested operation could not be performed. You might have attempted an illegal operation, such as trying to download a file to a non-existent directory.

1. Check the filename and directory name. 2. Retry the task.

RAM DISK FILE SYSTEM IS FULL

The RAM disk is full.

1. Delete files and then try again, or turn the printer off, and then turn the printer on to delete all files on the device. (Delete files using HP JetAdmin, HP FontSmart, or another software utility. See the software help for more information.) 2. If the message persists, increase the size of the RAM disk. Change the RAM disk size from the Configuration Menu in the printer’s Control Panel.

7-22 Troubleshooting

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Table 7-5. Alphabetical Printer Messages (continued) Control Panel Message

Event Log Explanation Message

Recommended Action

RAM DISK IS WRITE PROTECTED

The RAM disk is protected, and no new files can be written to it.

Disable the write protection through HP JetAdmin.

TRAY x EMPTY

The specified tray is empty, but the current job does not need this tray in order to print correctly. If this message appears and the tray contains paper, a sensor could be damaged. PS301 detects paper in Tray 2. PS401 detects paper in Tray 1. PS1601 detects paper in the optional 250-sheet feeder. PS2001 detects paper in the optional 500-sheet feeder. See figure 7-19 on page 7-92 for sensor locations.

1. Load the empty tray (x) to clear the message. If you do not load the specified tray, the printer will continue printing from the next available tray, and the message will continue to display. 2. Inspect the tray for damaged tabs. 3. Check Sensor Arm Flags for damage and be sure they move freely. 4. Replace any defective sensors.

EN

Troubleshooting the Printing System 7-23

Table 7-5. Alphabetical Printer Messages (continued) Control Panel Message

Event Log Explanation Message

Recommended Action 1. Load the requested paper into the specified tray (x). Ensure that the trays are correctly adjusted for size. The size displayed on the front of the paper tray must match the size of paper loaded in the tray. The tray type settings (and size for Tray 1) must be set from the printer’s Control Panel. If you are trying to print A4 or letter size paper, and this message appears, make sure the default paper size is set correctly from the Printing Menu in the printer’s Control Panel. 2. Press [Go] to print from the next available tray. 3. Press [-Value+] to scroll through the available types and sizes. 4. Press [Select] to accept the alternate type or size. 5. Inspect the switches in the tray. 6. Turn the printer on with the tray removed and push the switches by hand to see if they register.

TRAY x LOAD [TYPE] [SIZE]

One of the following occurred: There is no paper loaded in the specified tray, or the paper is not the size requested, or the Control Panel is not set for the size of paper loaded. The tray is not properly adjusted for size. The default paper size is set incorrectly. If this message appears and the tray contains the correct size of paper, a sensor could be damaged or a paper sensor lever could be stuck.

UNSUPPORTED SIZE IN TRAY [YY]

Load a supported paper An external paper handling device detected size in the tray. an unsupported paper size. The printer will go offline until the condition is corrected.

7-24 Troubleshooting

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Table 7-5. Alphabetical Printer Messages (continued) Control Panel Message

Event Log Explanation Message

Recommended Action 1. Press [-Value+] to scroll through the available types and sizes. 2. Press [Select] to accept the alternate type or size.

USE [TYPE] [SIZE] INSTEAD?

If the requested paper size or type is not available, the printer asks if it should use another paper size or type instead.

WAIT FOR PRINTER TO REINITIALIZE

The RAM disk setting has Wait for the printer to reinitialize. been changed from the printer’s Control Panel. This change will not take effect until the printer reinitializes.

EN

Troubleshooting the Printing System 7-25

Table 7-6. Numerical Printer Messages Control Panel Message

Event Log Message

Explanation

Recommended Action

13.x PAPER JAM [LOCATION]

13.xx

Paper is jammed at the specified location (and possibly at other locations). If the message persists after all jams have been cleared, a sensor might be stuck or broken.

For all paper jam messages, do the following: 1. Remove jammed paper from the specified location. Check the entire paper path for other pieces of paper in the path. 2. Open and close the top cover to clear the message. 3. If the jam reoccurs see “General Paper Path Troubleshooting” on page 7-40. 4. Check sensors and flags in the paper path for proper operation. For locations of sensors, see page 7-88.

13.1 PAPER JAM

13.01

Paper delay jam at paper feed area.

13.2 PAPER JAM

13.02

Paper stopped jam at paper feed area.

For 13.1 and 13.2: 1. Ensure that paper trays are loaded properly so paper can feed from the tray. 2. Check the input area for obstructions such as paper in the path, damage to the Registration Assembly, or the Transfer Roller out of place. 3. Check PS402 and PS403 for proper operation. Replace any defective sensors or flags. For locations of sensors, see page 7-88.

7-26 Troubleshooting

EN

Table 7-6. Numerical Printer Messages (continued) Control Panel Message

Event Log Message

Explanation

Recommended Action

13.5 PAPER JAM

13.05

Paper delay jam at Fuser.

13.6 PAPER JAM

13.06

Paper stopped jam at Fuser.

For 13.5 and 13.6: 1. Check the Transfer Roller and Small Media Belt to ensure they are operating and can feed paper. 2. Check the paper path for obstructions at the Transfer Roller and Toner Cartridge, at the Paper Feed Guide, and at the Fuser. 3. Check PS1307 for proper operation. Replace any defective sensors or flags. For locations of sensors, see page 7-88.

13.10 PAPER JAM

13.10 or 13.22

Paper delay jam at paper reversing area. Paper jam at duplexer.

EN

1. Check the Duplexer and the rear area of the printer for obstructions or damage. 2. Check PS1701 and PS1703 in the Duplexer for proper operation. Replace the Duplexer if a sensor is defective.

Troubleshooting the Printing System 7-27

Table 7-6. Numerical Printer Messages (continued) Control Panel Message

Event Log Message

Explanation

Recommended Action

13.20 PAPER JAM

13.20 or 13.32

Paper stopped jam in the paper path.

13.21 PAPER JAM

13.21 or 13.33

Door open jam.

For 13.20 and 13.21: 1. Check the entire paper path for obstructions such as paper in the path, registration area, transfer area, paper feed, and Fuser. 2. Check that all assemblies are seated and doors are closed. 3. Check all sensors and flags in the paper path (see page 7-88).

20 INSUFFICIENT MEMORY alternates with

PRESS GO TO CONTINUE

21 PAGE TOO COMPLEX alternates with

PRESS GO TO CONTINUE

7-28 Troubleshooting

The printer received more data than can fit in its available memory. You might have tried to transfer too many macros, soft fonts, or complex graphics.

Press [Go] to print the transferred data (some data might be lost), then simplify the print job or install additional memory.

The data (dense text, rules, raster or vector graphics) sent to the printer was too complex.

Press [Go] to print the transferred data. (Some data might be lost.) To print the job without losing data, from the Configuration Menu in the printer Control Panel, set PAGE PROTECT=ON, print the job, then return PAGE PROTECT=AUTO. Do not leave PAGE PROTECT=ON; it might degrade performance. If this message appears often, simplify the print job.

EN

Table 7-6. Numerical Printer Messages (continued) Control Panel Message

22 EIO x BUFFER OVERFLOW alternates with

Event Log Message

Explanation

Recommended Action

Too much data was sent to Press [Go] to clear the the EIO card in the message. (Data will be lost.) specified slot (x).

PRESS GO TO CONTINUE 22 PARALLEL I/O BUFFER OVERFLOW alternates with

PRESS GO TO CONTINUE

22 SERIAL I/O BUFFER OVERFLOW alternates with

PRESS GO TO CONTINUE

EN

Too much data was sent to the parallel port. This error can occur if the driver you are using is not IEEE-1284 compliant. For best results, use an HP driver that came with the printer.

Check for a loose cable connection and be sure to use a high-quality cable. (Some non-HP parallel cables might be missing pin connections, or might otherwise not conform to the IEEE-1284 specification.) Press [Go] to clear the error message. (Data will be lost.)

Too much data was sent to 1. Make sure the correct the serial port. serial pacing option is selected from the I/O Menu in the printer’s Control Panel. 2. Print a Menu Map and verify that the serial pacing item (from the I/O Menu in the printer’s Control Panel) matches the setting on the computer. 3. Press [Go] to clear the error message. (Data will be lost.)

Troubleshooting the Printing System 7-29

Table 7-6. Numerical Printer Messages (continued) Control Panel Message

40 BAD SERIAL TRANSMISSION alternates with

PRESS GO TO CONTINUE

40 EIO x BAD TRANSMISSION alternates with

PRESS GO TO CONTINUE

7-30 Troubleshooting

Event Log Message

Explanation

Recommended Action

The printer encountered an error while transferring data from the computer. The error might have occurred for several reasons: The computer was powered on or off while the printer was online. The printer’s serial configuration does not match that of the computer.

1. Verify cable connections. Make sure the printer’s serial configuration is set the same as the computer from the I/O Menu in the printer’s Control Panel. 2. The serial baud rate setting can be accessed from the I/O Menu in the printer’s Control Panel. 3. Press [Go] to clear the error message and continue printing.

The connection has been broken between the printer and the EIO card in the specified slot. X Description 1 EIO Slot 1 2 EIO Slot 2

1. Turn the printer off and reseat the card. 2. Press [Go] to clear the error message and continue printing.

EN

Table 7-6. Numerical Printer Messages (continued) Control Panel Message

Explanation

Recommended Action

41.3 UNEXPECTED PAPER SIZE

The paper size you are trying to print is not the same as the settings for the tray.

1. Make sure that all trays are correctly adjusted for size.The size displayed on the front of the paper tray must match the size of paper loaded in the tray. (The printer will continue trying to print the job until size settings are correct.) If you are trying to print from Tray 1, make sure the printer’s Control Panel setting for paper size is correctly configured. 2. After performing the actions above, press [Go]. The page containing the error will automatically be reprinted. (Or, you might want to press [Cancel Job] to clear the job from the printer’s memory.)

41.x PRINTER ERROR

A temporary printing error occurred. X Description 1 Unknown misprint error. 2 Beam detect error. 4 No VSYNC error. 5 Media feed error. 9 Noise VSREQ error.

Press [Go]. The page containing the error will automatically be reprinted. If the error persists: 1. Reseat the connections to the Laser Scanner and the Engine Controller Board. 2. Replace the Laser Scanner. 3. Replace the Engine Controller Board.

alternates with

PRESS GO TO CONTINUE

EN

Event Log Message

Troubleshooting the Printing System 7-31

Table 7-6. Numerical Printer Messages (continued) Control Panel Message

Event Log Message

50.x FUSER ERROR

Figure 7-3

Explanation

Recommended Action

A Fuser error has occurred. X Description 1 Low Fuser temperature. 2 Fuser warm up service. 3 High Fuser temperature. 4 Faulty Fuser. 5 Inconsistent Fuser.

1. Turn the printer off for a minimum of 20 minutes to clear the error. 2. Reseat the Fuser. 3. Turn the power off and remove the Fuser. Check continuity between connectors J1307-1 and J1307-2. If there is no continuity, replace the Fuser. 4. Check continuity between connectors J1308-3 and J1308-1 with the Fuser removed. If there is no continuity, replace the Fuser.

Fuser Connectors

7-32 Troubleshooting

EN

Table 7-6. Numerical Printer Messages (continued) Control Panel Message

Explanation

Recommended Action

51.x PRINTER ERROR

A loss of beam detect occurred. X Description 1 Beam detect error. 2 Laser error.

1. Press [Go]. The page containing the error will automatically be reprinted. 2. Turn the printer off and then on. 3. Reseat the cables. 4. Replace the Laser Scanner.

52.x PRINTER ERROR

The Laser Scanner speed is incorrect. X Description 1 Scanner start-up error. 2 Scanner rotation error.

1. Press [Go]. The page containing the error will automatically be reprinted. 2. Turn the printer off and then on. 3. Reseat the cables. 4. Replace the Laser Scanner.

EN

Event Log Message

Troubleshooting the Printing System 7-33

Table 7-6. Numerical Printer Messages (continued) Control Panel Message

53.xy.zz PRINTER ERROR

Event Log Message

Explanation

Recommended Action

There is a memory error with an accessory. The DIMM that caused the error will not be used. Values of x, y, and zz are as follows: x=DIMM type 0=ROM 1=RAM

1. Turn the printer off, and reseat or replace the specified DIMM. 2. Try the DIMM in another slot. 3. Replace the DIMM that caused the error.

y=Device location 0=internal memory (ROM or RAM) 1 to 3=DIMM slots 1, 2, or 3 zz=Error number 0=Unsupported memory 1=Unrecognized memory 2=Unsupported memory size 3=Failed RAM test 4=Exceeded maximum RAM size 5=Exceeded maximum ROM size 6=Invalid DIMM speed 7=DIMM reporting information incorrectly 8=DIMM RAM parity error 9=ROM needs to be mapped to an unsupported address 10=DIMM address conflict 11=PDC XROM out of bounds 12=Unable to make a temporary mapping

7-34 Troubleshooting

EN

Table 7-6. Numerical Printer Messages (continued) Control Panel Message

55 PRINTER ERROR alternates with

PRESS GO TO CONTINUE

Event Log Message

Explanation

Recommended Action

An internal communication 1. Press [Go]. The page error occurred. containing the error will automatically be reprinted. 2. Check power at the site. 3. Replace the Formatter PCA. 4. Replace the DC Controller. A temporary printing error occurred. X Description 1 Illegal input. 2 Illegal output.

1. Press [Go]. The page containing the error will automatically be reprinted. 2. Turn the printer off, and then turn the printer on. 3. Check the printer’s configuration.

57.x PRINTER ERROR

An error occurred with the Fan’s motor. X Description 1 Printer Fan

1. Check the Fan’s connector and make sure the Fan is not blocked. 2. Replace the Fan.

59.x PRINTER ERROR

A motor error occurred. X Description 0 Motor error. 1 Motor start-up error. 2 Motor rotation error.

1. Turn the printer off, and then turn the printer on. 2. Make sure the Fuser or Toner Cartridge is not hindering movement of gears in the drive train. 3. Check the Main Motor’s cable to ensure that it is seated properly. 4. If the error persists, replace the Motor.

56.x PRINTER ERROR alternates with

CYCLE POWER TO CONTINUE

EN

Troubleshooting the Printing System 7-35

Table 7-6. Numerical Printer Messages (continued) Control Panel Message

Event Log Message

Explanation

Recommended Action

62.x PRINTER ERROR

There is a problem with the Reseat or replace the specified DIMM. printer’s memory. The x value refers to the location of the problem: 0 = Internal memory 1 to 3 = DIMM slots 1, 2, or 3

64.x PRINTER ERROR

A scan buffer error occurred.

1. Turn the printer off, then turn the printer on. 2. Replace Formatter PCA.

66.xx.yy INPUT DEVICE FAILURE

An error occurred in an external paper handling device. 1st X= Device number in chain. 2nd X= Device type (3 types): 1 Input 2 Output 3 Stapler/ stacker unit yy= Device specific error.

1. Press [Go] to clear the message. If the message will not clear: 2. Turn the printer off, and then turn the printer on. 3. Check all cables. 4. Reseat the external paper handling device.

An error occurred in the printer’s nonvolatile memory (NVRAM) and one or more printer settings has been reset to its factory default.

1. Print a configuration page and check the printer settings to determine which values have changed. 2. Hold down [Cancel Job] while turning the printer on. This will clean up the NVRAM by removing old areas that are not being used.

alternates with

CHECK CABLES AND CYCLE POWER

68 NVRAM ERROR CHECK SETTINGS

7-36 Troubleshooting

EN

Table 7-6. Numerical Printer Messages (continued) Control Panel Message

Explanation

Recommended Action

68 NVRAM FULL CHECK SETTINGS

An error occurred in the printer’s nonvolatile memory (NVRAM) and one or more printer settings has been reset to its factory default.

1. Print a Configuration Page and check the printer settings to determine which values have changed. 2. Hold down [Cancel Job] while turning the printer on. This will clean up the NVRAM by removing old areas that are not being used.

69.x PRINTER ERROR

A temporary printing error occurred. X Description 0 The duplex mechanism has failed. 1 The duplex side adjust has failed.

1. Turn the printer off, then turn the printer on. 2. Reseat Duplexer.

EN

Event Log Message

Troubleshooting the Printing System 7-37

Table 7-6. Numerical Printer Messages (continued) Control Panel Message

79.xxxx PRINTER ERROR

Event Log Message

Explanation

Recommended Action

The printer detected an error. The numbers (xxxx) indicate the specific type of error.

1. Turn the printer off, and then turn the printer on. 2. Try printing a job from a different software application. If the job prints, go back to the first application and try printing a different file. (If the message only appears with a certain software application or print job, have the customer contact the software vendor for assistance.) If the message persists, try the following: 1. Cycle power. 2. Reseat or replace the interface cable and cycle power. 3. Remove the DIMMs one at a time and cycle power. 4. Try using the parallel interface, if possible. 5. With the EIO cards removed from the printer, perform a cold reset. 6. If the error persists, replace the Formatter.

7-38 Troubleshooting

EN

Table 7-6. Numerical Printer Messages (continued) Control Panel Message

8x.yyyy

EN

Event Log Message

Explanation

Recommended Action

The EIO accessory in slot x has encountered a critical error as specified by yyyy. X Description 1 EIO slot 1 - The printer detected an error with the EIO card. 2 EIO slot 2 - The printer detected an error with the EIO card. 6 EIO slot 1 - The EIO card detected an error. The EIO card may be defective. 7 EIO slot 2 - The EIO card detected an error. The EIO card may be defective.

1. Turn the printer off, and then turn the printer on. 2. Reseat or replace the EIO board.

Troubleshooting the Printing System 7-39

General Paper Path Troubleshooting Paper jams occur in the printer when paper does not either reach or clear a photosensor along the printer’s paper path in a specific amount of time. If a paper jam occurs, a 13.xx PAPER JAM message is displayed on the printer’s Control Panel. The following table contains general questions you may ask and topics to explore prior to troubleshooting. See the 13.xx section in the Event Log for specific error codes.

Table 7-7. General Paper Path Troubleshooting Questions Problem

Action

What is the frequency of the Verify with customer. Print or Show Event Log to determine paper jams (e.g. continuous, paper jam history. See the Display and Event Log Sections of this one jam per 100 pages, one Chapter and evaluate Event Log. jam per 1000 pages, etc.)? Use Paper Path Test to isolate problem. See next section for Do paper jams only occur when the paper is fed from a details (page 7-42). particular paper input source (e.g., Tray 1, Tray 2)? Use Paper Path Test to isolate problem. Do jams only occur when paper is output to a specific output bin (e.g. face-down output bin, face-up bin)? Do paper jams occur with a Try known good media. See the HP LaserJet Printer Family specific type of media? Paper Specifications Guide. Note that the guide is bundled with the Service Manual. Where does the leading edge of the first sheet of paper in the printer’s paper path stop when a jam occurs? Are any sheets of paper damaged or torn?

7-40 Troubleshooting

Attempt to duplicate. Use Paper Path Test to isolate problem. Inspect the paper path and all paper path mechanical assemblies located before the leading paper jam.

EN

Table 7-7. General Paper Path Troubleshooting Questions (continued) Problem

Action

Is the customer loading the paper trays correctly?

Observe the customer loading paper. Do not fan paper. Refer to proper paper handling procedures in the Paper Specification Guide.

Is the customer overfilling the paper trays?

Ensure paper is NOT over the maximum fill marks in the paper trays. Observe the customer loading paper in trays.

Are the paper tray guides set correctly?

Ensure Tray 2 and 3 left-side paper guide is set correctly at both the front and rear of the tray, and that the front guide is locked into the correct position. For Tray 4, ensure all adjustments are set correctly; front, back, and side at the top and bottom of the tray.

Does the printer need cleaning?

Inspect paper path and paper path rollers. Refer to cleaning procedures in Chapter 4.

When was the User Maintenance performed on the printer?

Determine from PCL Configuration Page the number of pages since the last maintenance (page 7-45). The Printer Maintenance Kit should be installed every 150,000 images.

EN

Troubleshooting the Printing System 7-41

Paper Path Test To perform a Paper Path Test: 1

Press [Menu] until INFORMATION MENU appears

2

Press [Item] until PRINT PAPER PATH TEST appears.

3

Press [Select].

4

Press [+] to cycle selections until the desired paper tray appears.

5

Press [Select].

6

Press [+] until the desired output bin appears (open the rear output bin to print to it)

7

Press [Select].

8

Press [+] until the desired duplex mode (on or off) appears.

9

Press [Select].

10 Press [+] to cycle selections until the desired number of copies appears. Choose 1, 10, 50, 100, or 500 copies. 11 Press [Select] to perform the Paper Path Test.

7-42 Troubleshooting

EN

Information Pages From the printer’s control panel you can print pages that give details about the printer and its current configuration. The following information pages are described here: ●

Menu Map



Configuration Page



PCL or PS Font List

For a complete list of the printer’s information pages, print a Menu Map and see the Information Menu listed.

Menu Map To see the current settings for the menus and items available in the control panel, print a control panel menu map: 1

Press [Menu] until INFORMATION MENU appears.

2

Press [Item] until PRINT MENU MAP appears.

3

Press [Select] to print the menu map.

The content of the Menu Map varies, depending on the options currently installed in the printer. (Many of these values can be overridden from the printer driver or software application.)

EN

Troubleshooting the Printing System 7-43

Figure 7-4

Menu Map

7-44 Troubleshooting

EN

Configuration Page Use the Configuration Page to view current printer settings, to help troubleshoot printer problems, or to verify installation of optional accessories, such as memory (DIMMs), paper trays, and printer languages. Note

If an HP JetDirect print server EIO card is installed, a JetDirect Configuration Page will print out as well. To print a Configuration page: 1

Press [Menu] until INFORMATION MENU appears.

2

Press [Item] until PRINT CONFIGURATION appears.

3

Press [Select] to print the configuration page.

Figure 7-5 on page 7-46 is a sample Configuration Page. Numbers in the sample printout match the numbers in the table. The content of the Configuration Page varies, depending on the options currently installed in the printer.

EN

Troubleshooting the Printing System 7-45

Figure 7-5

Configuration Page

7-46 Troubleshooting

EN

Verify installed options Under “Installed Personalities” on the Configuration page, look for options such as hard disk or DIMM types and sizes. Verify that the options which are installed in your printer are reflected in the Configuration Page. If an installed device is not shown, reseat the device and print a new Configuration Page.

EN

Troubleshooting the Printing System 7-47

Image Quality When you are working with customers, obtain a print sample before you begin troubleshooting their printer. Ask the customer to explain the quality they expect from the printer. The print sample will also help clarify the customer’s explanation.

Table 7-8. Image Quality Checks Image Quality Checks

Action

Does the problem repeat on Use the Repetitive Defect Ruler on page 7-73. the page? Is the Toner Cartridge full and is it manufactured by HP?

Check the Toner Cartridge using the check list on page 7-48.

Is the customer using print media that meets all HP paper specification standards?

For more information about HP’s paper specification standards, see Chapter 1 of this manual and the HP LaserJet Family Paper Specification Guide.

Is the print sample similar to Compare and perform the actions recommended in the Print those in the Print Quality Quality Tables. Tables on page 7-48? Is the problem on the Toner Perform the Half Self-Test Functional Check (page 7-74) to determine where the defect is. Cartridge drum or the If a dark and distinct toner image is present on the drum’s Transfer Roller? surface, assume that the first four functions of the electrophotographic process are functioning (cleaning, conditioning, writing, and developing - see Chapter 5), and troubleshoot the failure as a transfer or fusing problem.

Check the Toner Cartridge Image formation defects are often the result of problems with the Toner Cartridge. If there is any doubt, always replace the Toner Cartridge before troubleshooting image defects.

7-48 Troubleshooting

EN

Use the following list to ensure that the Toner Cartridge is still operable.

Note



Ensure that the Toner Cartridge has toner. Full Toner Cartridge weight = 1880 grams (66.3 oz.) Empty Weight = 1450 grams (51.1 oz.)



Check the expiration date of the Toner Cartridge (stamped on the cartridge’s box).



Check the Toner Cartridge to see if it has been disassembled or refilled.



Ensure that the Toner Cartridge is seated properly in the printer cavity.



Inspect the cartridge for leaking toner through worn seals. (If the drum has been manually rotated it may have caused internal damage and toner spills may result.)

Toner Cartridges are rated for 10,000 images at 5% coverage. It is possible to wear out the gears and the cartridge seals before TONER LOW is displayed if the 10,000 image expectancy is exceeded. See “EconoMode” below. ●

Check the surface of the photosensitive drum in the cartridge to see if it has been damaged or scratched. Touching the drum will contaminate the photosensitive surface and may cause spotting and defects during printing.



White areas on the page may indicate that the drum has been exposed to light for too long. If white areas appear, stop the printer and wait a few minutes This should eliminate most defective images. If not, the Toner Cartridge may be placed in a dark environment for several days, which may restore some life to the drum.

EconoMode EconoMode creates draft-quality printing by reducing the amount of toner on the printed page by up to 50%. Advise the customer to turn EconoMode on or off from the printer driver or software application, since those settings override the control panel settings. EconoMode settings can also be accessed from the Print Quality Menu in the Front Panel. CAUTION

EN

HP does not recommend full-time use of EconoMode. If EconoMode is used full-time, it is possible that the toner supply will outlast the mechanical parts in the toner cartridge.

Troubleshooting the Printing System 7-49

Image Defects The quality of the printer’s output is subject to the judgment of the user. This section of the manual helps you define print quality defects and understand what factors affect print quality. The print samples shown in the following figures illustrate some print quality defects. Keep copies of print quality defects encountered in the field with an explanation of their causes for future reference. The image defects listed below are covered in the following tables.

Hint



Black Lines (perpendicular path) (page 7-51)



Black Page (page 7-51)



Blank Page (page 7-53)



Blank Spots (page 7-55)



Character Voids (page 7-56)



Creases (page 7-57)



Curl (page 7-58)



Dirt on Back (page 7-59)



Distorted Image (page 7-59)



Dropouts (page 7-60)



Faded Print/Bubbles (page 7-61)



Gray Background (page 7-63)



Horizontal Smudges (page 7-64)



Horizontal White Lines (page 7-65)



Light Print, Dark Print, or Fade (page 7-65)



Loose Toner (page 7-66)



Repetitive Defects (page 7-67)



Skew (page 7-68)



Toner Smear (page 7-68)



Toner Specks (page 7-69)



Vertical Black Lines (page 7-70)



Vertical Dots (page 7-71)



Vertical White Lines (page 7-71)

If you find a defect that is not depicted, record the probable cause along with the conditions in the printing environment and save a copy of the defect for future reference.

7-50 Troubleshooting

EN

Table 7-9. Black Lines (perpendicular path) Possible Cause

Action

Defective Toner Cartridge.

Inspect the Toner Cartridge for a scratched photosensitive drum or toner leaking through worn seals. Replace as necessary.

Fusing Assembly is contaminated or damaged.

Inspect the Fusing Assembly for toner build-up or scratches on the fuser rollers. Try cleaning with alcohol. Replace the Fusing Assembly if damaged.

Static Eliminator teeth are contaminated or defective.

Clean using the blue cleaning tool or compressed air. Replace assembly if damaged.

Table 7-10. Black Page Possible Cause

Action

Defective Toner Cartridge.

Replace the Toner Cartridge.

Light is leaking into the printer.

Ensure all covers are in place.

High voltage contact Inspect and clean the high voltage contacts. If damaged, replace the High Voltage Power Supply springs are dirty or PCA. defective. The high voltage contacts are mounted on the High Voltage Power Supply PCA and protrude into the toner cartridge cavity.

EN

Troubleshooting the Printing System 7-51

Table 7-10. Black Page (continued) Possible Cause

Action

Defective Toner Cartridge.

Replace the Toner Cartridge.

Light is leaking into the printer.

Ensure all covers are in place.

High voltage power supply circuit is defective (not supplying the correct negative voltage).

Replace the High Voltage Power Supply PCA.

Remove the DC Controller Board and check the The High Voltage connectors for damage. Reseat the DC Controller Power Supply is installed improperly. If Board, being certain to fully seat the connectors. the High Voltage Power Supply has been removed and replaced, it may not be seated properly. Bad Primary Charging Replace the Toner Cartridge. Roller. DC Controller PCA is Replace the DC Controller PCA. defective. If the DC Controller turns on the laser beam continuously, the entire surface of the Photosensitive drum is neutralized causing a completely black page. Laser/Scanner Assembly is faulty (turning laser on continuously).

7-52 Troubleshooting

Replace Laser/Scanner Assembly.

EN

Table 7-10. Black Page (continued) Possible Cause

Action

Defective Toner Cartridge.

Replace the Toner Cartridge.

Light is leaking into the printer.

Ensure all covers are in place.

Connectors between Inspect and reseat the connectors. Replace cables as necessary. the Laser/Scanner unit and DC Controller are not seated properly or are defective.

Table 7-11. Blank Page Possible Cause

Action

Software Configuration.

Make sure the application is not sending incorrect page length requests, or extra page eject commands.

Check with the Network Administrator. Network Configuration. Some sharing devices on networks may generate a blank page as a separator.

EN

Multiple Feeds. The printer may be feeding two or more pages at once because the paper is difficult to separate.

Remove the paper from the paper cassette and fan the edges of the paper to separate the pages (see HP LaserJet Printer Family Paper Specifications Guide).

Sealing tape left in Toner Cartridge.

Remove the sealing tape.

Troubleshooting the Printing System 7-53

Table 7-11. Blank Page (continued) Possible Cause

Action

Empty or defective Toner Cartridge.

1. If unsure, weigh the cartridge:

• Full weight = 1880 grams (66.3 oz) • Empty weight = 1450 grams (51.5 oz) Note: Some toner may reside in the waste toner cavity, affecting the weight of the cartridge. 2. Perform the Half Self-Test Functional Check (page 7-74) or try a known good toner cartridge. Replace the Toner Cartridge if necessary.

Laser/Scanner door not opening properly.

1. Remove and reseat the Toner Cartridge. 2. Check the Laser/Scanner shutter door for proper operation. If defective, replace the Laser/Scanner Assembly.

Toner Cartridge Guide Make sure the Guide is installed properly above the damaged, improperly Toner Cartridge. positioned, or missing. No Transfer Roller voltage.

Without Transfer Roller voltage, toner cannot be attracted from the surface of the drum to the paper. Perform the Half Self-Test Functional Check (page 7-74) to check all other electrophotographic processes. Replace the Transfer Roller if necessary.

Check the springs for functionality. Clean if dirty, High voltage connector springs are replace if defective or missing. dirty or defective. The high voltage connectors are mounted on the High Voltage Power Supply PCA and protrude into the Toner Cartridge cavity. High Voltage Power Supply is defective.

7-54 Troubleshooting

Replace High Voltage Power Supply PCA.

EN

Table 7-11. Blank Page (continued) Possible Cause

Action

DC Controller PCA is Replace the DC Controller PCA. defective. The DC Controller supplies the proper voltage to the High Voltage Power Supply PCA. No Developing Bias.

1. Clean the High Voltage Power Supply contacts. With no Developing Bias charge, toner is not attracted to the drum. 2. Replace the Engine Controller Board.

No drum ground path. With no ground path the drum cannot discharge. The negative charge on the drum repels toner, and leaves a white page with bubble print. 1. Check the drum ground. 2. Replace the Engine Controller Board. Defective Laser Scanner Cable Assembly.

Low-level signals exchanged between the Laser Scanner Assembly and the Engine Controller Board may be affecting laser output. Replace the Laser Scanner Cable Assembly.

Table 7-12. Blank Spots

EN

Possible Cause

Action

Paper does not meet printer specifications or is stored improperly.

1. Print a few more pages to see if the problem corrects itself. 2. Turn over the stack of paper in the tray. Also try rotating the paper 180°. 3. Check the paper (or other print media) type and quality. Replace the paper, and advise the customer to use the recommended paper and store it properly.

Defective Toner Cartridge.

Replace the Toner Cartridge.

Troubleshooting the Printing System 7-55

Table 7-12. Blank Spots (continued) Possible Cause

Action

Dirty or deformed Transfer Roller.

Replace the Transfer Roller.

See also “Dropouts” on page 7-60.

Table 7-13. Character Voids Possible Cause

Action

User paper with correct finish (smoothness) meeting Paper surface too rough. Toner migrates HP specifications (see HP LaserJet Printer Family to low spots, leaving Paper Specifications Guide). higher areas void. Printing on wrong side Check for the arrow on the paper wrapper. Be sure of paper. The label on paper is loaded with the arrow pointing down in the paper trays, or arrow pointing up in Tray 1. the ream of paper indicates which side to print on. The different surface properties of some papers may cause problems if loaded wrong side up. Paper surface too smooth for proper toner adhesion.

User paper with correct finish (smoothness) meeting HP specifications (see HP LaserJet Printer Family Paper Specifications Guide).

Bad transparencies. Transparencies can have this problem because they are not designed for proper toner adhesion.

Use Hewlett-Packard approved transparencies (see HP LaserJet Printer Family Paper Specifications Guide).

7-56 Troubleshooting

EN

Table 7-13. Character Voids (continued) Possible Cause

Action

Bad Transfer Roller. If the Transfer Roller has finger oils on its surface, is dirty or worn out, this problem can result.

Clean the Transfer Roller using a dry, lint-free cloth. DO NOT touch the Transfer Roller with your fingers. If the problem persists, replace the Transfer Roller Assembly.

Table 7-14. Creases Possible Cause

Action

Paper does not meet printer specifications or is stored improperly.

1. Print a few more pages to see if the problem corrects itself. 2. Turn over the stack of paper in the tray. Also try rotating the paper 180°. 3. Check the paper (or other print media) type and quality. Replace the paper, and advise the customer to use the recommended paper and store it properly.

Printer’s operating Make sure the printer’s operating environment meets environment does not specifications. meet specifications.

EN

Paper is loaded incorrectly.

Make sure paper is loaded correctly and that the guides fit properly against the paper stack.

Wrong tray.

Print from a different tray (such as Tray 1).

Wrong output bin for paper type.

Print to a different output bin (top or rear output bin).

Obstruction in paper path.

1. Check the paper path for paper or label debris. 2. Check for damaged components that could be creasing the paper.

Troubleshooting the Printing System 7-57

Table 7-15. Curl Possible Cause

Action

Paper does not meet printer specifications or is stored improperly.

1. Print a few more pages to see if the problem corrects itself. 2. Turn over the stack of paper in the tray. Also try rotating the paper 180°. 3. Check the paper (or other print media) type and quality. Replace the paper, and advise the customer to use the recommended paper and store it properly.

Make sure the printer’s operating environment meets Printer’s operating environment does not specifications. meet specifications. Wrong output bin.

Print to a different output bin (top or rear output bin).

Wrong Fuser setting for paper type.

1. From the Paper Handling Menu on the Control Panel, change the Fuser Mode setting or choose another paper type from the printer driver. 2. Turn Paper Reform to on in the Configuration Menu. See also “Dropouts” on page 7-60.

7-58 Troubleshooting

EN

Table 7-16. Dirt on Back Possible Cause

Action

Dirt inside printer (Tray Separation Roller, Feed Roller, Transfer Roller, Fuser, Toner Cartridge).

1. Print at least 10 pages to see if the problem goes away. 2. Print a cleaning page (page 4-4). Identify and clean the dirty part according to the “Repetitive Defect Ruler” on page 7-72. If dirt cannot be removed, replace the dirty part. 3. Check for toner leaks.

Paper does not meet printer specifications or is stored improperly.

1. Print a few more pages to see if the problem corrects itself. 2. Turn over the stack of paper in the tray. Also try rotating the paper 180°. 3. Check the paper (or other print media) type and quality. Replace the paper, and advise the customer to use the recommended paper and store it properly.

Table 7-17. Distorted Image Possible Cause

Action

Paper does not meet printer specifications or is stored improperly.

1. Print a few more pages to see if the problem corrects itself. 2. Turn over the stack of paper in the tray. Also try rotating the paper 180°. 3. Check the paper (or other print media) type and quality. Replace the paper, and advise the customer to use the recommended paper and store it properly.

Printer’s operating Make sure the printer’s operating environment meets environment does not specifications. meet specifications. Wrong output bin for paper type.

EN

Print to a different output bin.

Troubleshooting the Printing System 7-59

Table 7-17. Distorted Image (continued) Possible Cause

Action

Poor connection of cables to the Laser Scanner.

Reseat the cables connected to the Laser Scanner.

Poor connection of cables to the DC Controller Assembly.

Reseat the cables connected to the DC Controller Assembly.

Defective Laser Scanner.

Replace the Laser Scanner.

Defective Engine Controller Board.

Replace the Engine Controller Board.

Table 7-18. Dropouts Possible Cause

Action

Paper might be too smooth.

Check the paper (or other print media) type and quality.

Printer’s operating Make sure the printer’s operating environment meets environment does not specifications. meet specifications. Wrong toner density setting.

From the Print Quality Menu on the Control Panel, adjust the toner density setting. Make sure EconoMode is off.

Wrong Fuser setting for paper type.

From the Paper Handling Menu on the Control Panel, change the Fuser Mode setting or choose another paper type from the printer driver.

Single sheet of paper Try reprinting the job. defective.

7-60 Troubleshooting

EN

Table 7-18. Dropouts (continued) Possible Cause

Action

Paper does not meet Try a different paper lot (see HP LaserJet Printer Family Paper Specifications Guide). specifications. The paper moisture content, conductivity, or surface finish may not work correctly with the electrophotographic process. DC Controller Replace the DC Controller. defective (low primary voltage). High Voltage Power Replace the High Voltage Power Supply PCA. Supply PCA defective. Transfer Roller defective.

Replace the Transfer Roller.

See also “Blank Spots” on page 7-55.

Table 7-19. Faded Print/Bubbles Possible Cause

Action

No drum ground path. Check the contacts for functionality. If dirty, clean using alcohol; if damaged, replace the High Voltage Power Supply PCA.

EN

Toner supply is low.

Shake the cartridge gently to redistribute the toner, or replace the cartridge.

Print Density is set incorrectly.

Change to a darker setting and retry printing.

Troubleshooting the Printing System 7-61

Table 7-19. Faded Print/Bubbles (continued) Possible Cause

Action

Turn EconoMode off. EconoMode is on. EconoMode saves toner by reducing the dot density. This may appear to be a print quality problem in some cases. Paper does not meet Try a different paper lot (see HP LaserJet Printer Family Paper Specifications Guide). specifications. The moisture content, conductivity, or surface finish may not work correctly with the electrophotographic process. Inspect the Transfer Roller for proper installation and Transfer Roller is defective or incorrectly contact. If the Transfer Roller is damaged, replace it. installed. If the transfer roller loses conductivity, it cannot effectively pull toner from the drum to the paper. Laser/Scanner door is not opening properly.

1. Remove and reseat the toner cartridge. 2. Check the Laser/Scanner shutter door for proper operation. If defective, replace the Laser/Scanner Assembly.

High voltage contact Check the contacts for functionality. If dirty, clean using alcohol; if damaged, replace the High Voltage springs are dirty or Power Supply PCA. defective. The high voltage contacts are mounted on the High Voltage Power Supply PCA and protrude into the toner cartridge cavity.

7-62 Troubleshooting

EN

Table 7-19. Faded Print/Bubbles (continued) Possible Cause

Action

High Voltage Power Supply PCA is defective.

Replace the High Voltage Power Supply PCA.

DC Controller PCA is Replace the DC Controller PCA. defective. The DC Controller supplies the proper voltage to the High Voltage Power Supply PCA.

Table 7-20. Gray Background Possible Cause

Action

Paper does not meet printer specifications or is stored improperly.

1. Print a few more pages to see if the problem corrects itself. 2. Turn over the stack of paper in the tray. Also try rotating the paper 180°. 3. Check the paper (or other print media) type and quality. Replace the paper, and advise the customer to use the recommended paper and store it properly.

Clean inside of printer (see Chapter 4). Install a new Inside of printer is dirty (toner may have Toner Cartridge if leaking. leaked out of the toner cartridge). Printer’s operating Make sure the printer’s operating environment meets environment does not specifications. meet specifications. Printing on envelope Move the text to an area without seams. If not seams. Printing on an printing on seams, try a higher print density setting. envelope seam can cause a background scatter problem.

EN

Troubleshooting the Printing System 7-63

Table 7-20. Gray Background (continued) Possible Cause

Action

Wrong toner density setting.

From the Print Quality Menu on the Control Panel, adjust the toner density setting. Make sure EconoMode is off.

Faulty Toner Cartridge.

Replace the Toner Cartridge.

See also “Light Print, Dark Print, or Fade” on page 765.

Table 7-21. Horizontal Smudges Possible Cause

Action

Paper path contamination or damage.

1. Check the Toner Cartridge and replace it if necessary. 2. Check the Fuser and replace it if necessary. See the “Repetitive Defect Ruler” on page 7-72.

7-64 Troubleshooting

EN

Table 7-22. Horizontal White Lines Possible Cause

Action

Lack of toner or faulty Redistribute the toner in the Toner Cartridge. If the Toner Cartridge. problem continues, replace the Toner Cartridge. Dirt in the laser path.

Clean the laser path. (Remove the Laser Scanner Assembly and clean the lens.)

Defective Fuser.

Replace the Fuser Assembly.

Dirty mirror in the Laser Scanner.

Replace the Laser Scanner.

Table 7-23. Light Print, Dark Print, or Fade Possible Cause

Action

Wrong toner density setting.

From the Print Quality Menu on the Control Panel, adjust the toner density setting. Make sure EconoMode is off.

Toner Cartridge is low. Replace the Toner Cartridge.

EN

Transfer Roller is defective.

Replace the Transfer Roller.

Paper does not meet printer specifications or is stored improperly.

1. Print a few more pages to see if the problem corrects itself. 2. Turn over the stack of paper in the tray. Also try rotating the paper 180°. 3. Check the paper (or other print media) type and quality. Replace the paper, and advise the customer to use the recommended paper and store it properly.

Troubleshooting the Printing System 7-65

Table 7-23. Light Print, Dark Print, or Fade (continued) Possible Cause

Action

Poor contact to the Engine Controller Board.

1. Clean the contacts if they are dirty. If the problem remains after cleaning, or if parts are damaged or deformed, replace them. 2. Replace the Engine Controller Board if necessary.

Defective Laser Scanner.

Replace the Laser Scanner.

Defective High Replace the High Voltage Power Supply PCA. Voltage Power Supply. See also “Faded Print/Bubbles” on page 7-61.

Table 7-24. Loose Toner Possible Cause

Action

Dirt in the printer.

1. Print a few more pages to see if the problem corrects itself. 2. Clean the inside of the printer (page 4-2) or use the printer’s cleaning page (page 4-4).

Toner Cartridge is defective.

Replace the Toner Cartridge.

Paper might be too smooth.

Check the paper (or other print media) type and quality.

Wrong Fuser setting for paper type.

From the Paper Handling Menu on the Control Panel, change the Fuser Mode setting or choose another paper type from the printer driver.

Defective Fuser.

Replace the Fuser.

7-66 Troubleshooting

EN

Table 7-25. Repetitive Defects Possible Cause

Action

Inspect the drum for scratches or damage. Replace Toner Cartridge is the Toner Cartridge. damaged. The circumference of the photoconductive drum inside the toner cartridge is 94 mm (3.7 inches). If the defect repeats at this interval, the defect is associated with the drum. Dirty Rollers. Any dirty Examine and clean rollers in the paper path. roller in the paper path may result in a repetitive print defect. Clean the Fusing Assembly using alcohol. If the Fusing Assembly is dirty or defective. The problem persists, replace the Fusing Assembly. circumference of the lower fusing Pressure Roller is 86 mm (3.46 inches). If the defect repeats at this interval, the defect is associated with the Pressure Roller.

EN

Gears are worn, causing slippage or jumping.

Inspect the gears driving the Toner Cartridge and the Fuser. Replace the Main Drive Assembly if necessary.

Paper does not meet specifications: The surface of the paper may be too coarse, causing repeated marks.

Try a different paper lot (see HP LaserJet Printer Family Paper Specifications Guide).

Troubleshooting the Printing System 7-67

Table 7-26. Skew Possible Cause

Action

Paper does not meet printer specifications or is stored improperly.

1. Print a few more pages to see if the problem corrects itself. 2. Turn over the stack of paper in the tray. Also try rotating the paper 180°. 3. Check the paper (or other print media) type and quality. Replace the paper, and advise the customer to use the recommended paper and store it properly.

Make sure paper is loaded correctly and that the Paper is not loaded correctly or trays are guides fit properly against the paper stack. not adjusted properly. Registration Assembly Be sure that the Registration Assembly is installed is improperly installed. correctly.

Table 7-27. Toner Smear Possible Cause

Action

Dirt in the printer.

1. Print a few more pages to see if the problem corrects itself. 2. Clean the inside of the printer (page 4-2) or use the printer’s cleaning page (page 4-4).

Dirty Fusing Rollers. Toner build-up can cause the print on a page to smear.

Remove and inspect the Fusing Assembly for excessive toner build-up. Clean using alcohol.

Paper might be too smooth.

Check the paper (or other print media) type and quality.

Defective Toner Cartridge.

Replace the Toner Cartridge. (See instructions with the Toner Cartridge.)

7-68 Troubleshooting

EN

Table 7-27. Toner Smear (continued) Possible Cause

Action

Wrong Fuser setting for paper type.

From the Paper Handling Menu on the Control Panel, change the Fuser Mode setting or choose another paper type from the printer driver.

Replace the Fusing Assembly. Fusing Assembly is defective. The print will smear if the Fusing Assembly is not heated sufficiently to bond the toner image to the paper. The Static Eliminator is dirty or is not grounded, allowing a static charge to remain on the page.

Clean using the blue cleaning tool or compressed air. Replace assembly if damaged.

DC Controller is defective. The DC Controller regulates fusing roller temperature.

If a new Fusing Assembly does not resolve the problem, replace the DC Controller PCA.

Table 7-28. Toner Specks

EN

Possible Cause

Action

Dirt in printer.

1. Print a few more pages to see if the problem corrects itself. 2. Clean the inside of the printer (page 4-2) or use the printer’s cleaning page (page 4-4).

Troubleshooting the Printing System 7-69

Table 7-28. Toner Specks (continued) Possible Cause

Action

Paper does not meet printer specifications or is stored improperly.

1. Print a few more pages to see if the problem corrects itself. 2. Turn over the stack of paper in the tray. Also try rotating the paper 180°. 3. Check the paper (or other print media) type and quality. Replace the paper, and advise the customer to use the recommended paper and store it properly.

Alternating small and To alternate small and standard paper, from the standard paper (such Configuration Menu on the Control Panel, set SMALL as envelopes and PAPER SPEED=SLOW. letterhead).

Table 7-29. Vertical Black Lines Possible Cause

Action

Toner Cartridge not seated properly.

Remove the cartridge and reinsert it.

Toner Cartridge defective.

Replace the cartridge.

Refer to “Repetitive Image Defect Ruler.” Repetitive defect. If the lines are repeated at a consistent interval down the page, this is a repetitive defect.

7-70 Troubleshooting

EN

Table 7-30. Vertical Dots Possible Cause

Action

Dirty static eliminator teeth.

Clean the static eliminator.

Poor contact between Clean the contacts, if dirty. If the problem remains the Static Eliminator after cleaning, or if parts are damaged or deformed, replace them. and the Engine Controller Board. Deformed or deteriorated Transfer Roller.

Replace the Transfer Roller.

Defective DC Controller Assembly.

Replace the DC Controller Assembly.

Table 7-31. Vertical White Lines Possible Cause

Action

Remove the Toner Cartridge and shake it gently. The Toner Cartridge is nearly empty. This can cartridge will soon require replacement. cause uneven toner distribution.

EN

Toner Cartridge has been exposed to too much light.

Store the Toner Cartridge in a darkened environment for several days. This may restore the photosensitive potential.

Foreign objects in beam path. Any foreign objects will block the light from developing an image on the Photosensitive drum.

Remove the Toner Cartridge and check for damage. Replace the Toner Cartridge if it is damaged. Remove the Printer Cover and inspect the path from the Laser/Scanner to the Toner Cartridge drum, looking for foreign objects in the beam path.

Troubleshooting the Printing System 7-71

Repetitive Defect Ruler Repetitive print defects usually are associated with a specific roller within the printer or the Toner Cartridge. Use Figure 7-1 to isolate the cause of repetitive print defects. Align the first occurrence of the defect with the top of the “ruler” (at the top or bottom of the misprinted page), and measure to the next occurrence of the defect to determine the roller in question. When you are certain that your defect pattern matches the pattern of the ruler, replace the indicated roller.

7-72 Troubleshooting

EN

Figure 7-6

EN

Repetitive Defect Ruler

Troubleshooting the Printing System 7-73

Image System Troubleshooting Half Self-Test Functional Check The electrophotographic process can be subdivided into the following stages: ●

Cleaning (removes excess toner from drum surface)



Conditioning (places a uniform electrical charge on drum)



Writing (laser strikes surface of drum to create latent image)



Developing (forms the toner image on drum)



Transferring (charges transfer the image to paper)



Fusing (heat and pressure produces a permanent image)

The purpose of the Half Self Test Check is to determine which process is malfunctioning. Perform the test as follows: 1

Print a Configuration Page from the Control Panel INFORMATION MENU.

2

Open the top cover after the paper advances half-way through the printer (about five seconds after the Main Motor begins rotation). The leading edge of the paper should have advanced past the Toner Cartridge.

3

Remove the Toner Cartridge.

4

Open the Toner Cartridge’s drum shield to view the drum’s surface.

If a dark and distinct toner image is present on the drum’s surface, assume that the first four functions of the electrophotographic process are functioning (cleaning, conditioning, writing, and developing - see Chapter 5), and troubleshoot the failure as a transfer or fusing problem. If no image is present on the photosensitive drum, perform all the following functional checks:

7-74 Troubleshooting

EN

Drum Rotation Functional Check The photosensitive drum, located in the Toner Cartridge, must rotate for the print process to work. The photosensitive drum receives its drive from the Main Drive assembly. To verify whether the drum is rotating:

Note

EN

1

Open the top cover.

2

Remove the Toner Cartridge.

3

Mark the cartridge’s drive gear with a felt-tipped marker. Note the position of the mark.

4

Install the Toner Cartridge and close the top cover. The start-up sequence should rotate the drum enough to move the mark.

5

Open the printer and inspect the gear that was marked in step 3. Verify that the mark moved. If the mark did not move, inspect the Main Drive assembly to ensure that it is meshing with the Toner Cartridge gears. If the drive gears function, and the drum does not move, replace the Toner Cartridge.

This test is especially important if refilled Toner Cartridges are in use.

Troubleshooting the Printing System 7-75

Interface Troubleshooting This section provides an overview of the printer’s interface requirements.

Communications Check Note

Communication problems are normally the customer’s responsibility. Time spent attempting to resolve these problems may not be covered by the product’s Hewlett-Packard warranty. Refer the customer to the network administrator for assistance in troubleshooting network problems. If the printer is not connected to an MS-DOS-based host, proceed to the Communications Checks table in this section.

Test Message After the printer is installed, verify communications between the printer and the IBM-compatible computer. Enter the following at the DOS prompt: C:\DIR>LPT1 Enter (for printing to parallel port #1) The printer should print a directory listing of the C: \ directory.

EIO Troubleshooting The JetDirect Configuration Page shown in Figure 7-7 contains valuable information regarding the current status of the EIO accessories. Before attempting to troubleshoot a network problem or notifying your network consultant of a problem, always print a Configuration Page. See the HP JetDirect Print Server Software Installation Guide for detailed explanations of network issues.

7-76 Troubleshooting

EN

Network statistics

I/O card status

IP address

Node name

Figure 7-7

EN

Novell status

JetDirect Configuration Page

Troubleshooting the Printing System 7-77

JetDirect Configuration ●

If the EIO JetDirect Card has successfully powered up and completed its internal diagnostics, the I/O CARD READY message appears. If communication is lost, an I/O NOT READY message appears followed by a two digit error code. See the HP JetDirect Network Interface Configuration Guide for further details and recommended action.



The “Network Statistics” column indicates that network activity has been occurring. Bad packets, framing errors, unsendable packets and collisions should be minimal. If a high percentage (greater than one percent) of these occur, contact the network administrator. All of the statistics are set to zero when the printer is powered-off.



The “Novell Status” block should state the Novell printer server name to which the printer is connected. If the node name reads “NPIxxxxxx” (xxxxxx=last six digits of the EIO’s LAN address), the EIO card has not been configured for a Novell server. This could indicate that the card is operating under an IPX protocol other than Novell. Consult with the network administrator if the Node Name is not present.



In the TCP/IP protocol block, the default IP address is “192.0.0.192.” It is acceptable to operate the printer with this default address. The error message “ARP DUPLICATE ADDRESS” may appear in this block. This is also an acceptable error code if the TCP/IP protocol is not being used. Check with the network administrator to determine the correct IP Address for the printer.

7-78 Troubleshooting

EN

Reference Diagrams Locations of Components

Figure 7-8

EN

Paper Path

Reference Diagrams 7-79

Figure 7-9

250-sheet Paper Feeder

7-80 Troubleshooting

EN

Figure 7-10

EN

250-sheet Paper Feeder

Reference Diagrams 7-81

Figure 7-11

Tray 2 Paper Path

7-82 Troubleshooting

EN

Figure 7-12

EN

500-sheet Paper Feeder

Reference Diagrams 7-83

Figure 7-13

500-sheet Paper Feeder

7-84 Troubleshooting

EN

Figure 7-14

EN

Duplexing Unit

Reference Diagrams 7-85

Figure 7-15

Duplexing Unit

7-86 Troubleshooting

EN

Figure 7-16

EN

Duplexing Unit

Reference Diagrams 7-87

Sensors and Signals The drawing below shows key components, sensors, and switches that control the operation of the printer. The table on page 7-90 shows the name of each sensor, as well as the signal name and its destination or source.

Delivery rollers Registration roller Photosensitive drum

Tray 1 pickup roller

Feed belt Fuser

Transfer roller

Feed roller

Tray 2 pickup roller

Optional 250-sheet tray

Optional 500-sheet tray

Figure 7-17

Paper Path and Components

7-88 Troubleshooting

EN

Figure 7-18

EN

Paper Path (dashed lines represent duplexer path)

Reference Diagrams 7-89

Table 7-32. Table 1 Sensors and Signals Sensor

Name

CL405

Registration roller clutch

CL406

Feed roller clutch

PS301

Tray 2 paper sensor

PS302

Tray 1 paper width sensor

PS303

Face-up tray open sensor

PS307

Face-down tray paper full sensor

PS401

Tray 1 paper sensor

PS402

Top of page sensor

PS403

Registration roller paper sensor

PS1307

Fuser delivery paper sensor

PS1601

250-sheet feeder paper sensor

PS1701

Duplexer reversing unit paper sensor

PS1702

Duplexer side registration guide home position sensor

PS1703

Duplexer refeed paper sensor

SL306

Tray 2 pickup solenoid

SL404

Tray 1 pickup solenoid

SW101

Main power switch

7-90 Troubleshooting

EN

Table 7-32. Table 1 Sensors and Signals Sensor

Name

CL405

Registration roller clutch

CL406

Feed roller clutch

PS301

Tray 2 paper sensor

SW401

Top cover switch

SW403

Tray 2 paper size switch 1

SW404

Tray 2 paper size switch 2

SW405

Tray 2 paper size switch 3

SW1601

250-sheet feeder paper size sensors

SW1602

250-sheet feeder paper size sensors

SW1603

250-sheet feeder paper size sensors

SW1604

250-sheet feeder paper size sensors

TSW1

Fuser thermal switch

TH1301

Fuser roller thermistor

EN

Reference Diagrams 7-91

Figure 7-19

Location of Sensors and Switches

7-92 Troubleshooting

EN

Reversing unit paper sensor

Side registration guide home position sensor

Deflector drive solenoid Refeed paper sensor

Figure 7-20

EN

Duplexer Sensors and Switches

Reference Diagrams 7-93

Figure 7-21

Motors

7-94 Troubleshooting

EN

Figure 7-22

EN

Motors (Duplexing unit)

Reference Diagrams 7-95

Figure 7-23

Connectors

7-96 Troubleshooting

EN

Figure 7-24

EN

Connectors (Duplexing Unit and 250-sheet Paper Feeder)

Reference Diagrams 7-97

Figure 7-25

PCA’s

7-98 Troubleshooting

EN

Figure 7-26

EN

PCA (Duplexing Unit)

Reference Diagrams 7-99

Figure 7-27

Clutches and Solenoids

7-100 Troubleshooting

EN

Figure 7-28

EN

Clutches and Solenoids (Duplexing Unit)

Reference Diagrams 7-101

Figure 7-29

Switches

7-102 Troubleshooting

EN

Figure 7-30

EN

Switches (500-sheet Paper Feeder)

Reference Diagrams 7-103

Figure 7-31

DC Controller Board Test Points and Switches

7-104 Troubleshooting

EN

Figure 7-32

EN

250-sheet Paper Feeder Sensors

Reference Diagrams 7-105

7-106 Troubleshooting

EN

DC Controller PCA Inputs and Outputs

Figure 7-33

EN

DC Controller PCA I/O (1 of 4)

Reference Diagrams 7-107

Figure 7-34

DC Controller PCA I/O (2 of 4)

7-108 Troubleshooting

EN

Figure 7-35

EN

DC Controller PCA I/O (3 of 4)

Reference Diagrams 7-109

Figure 7-36

DC Controller PCA I/O (4 of 4)

7-110 Troubleshooting

EN

8

Parts and Diagrams

Overview The figures in this chapter identify and locate the printer’s major subassemblies and replacement parts. This chapter discusses the following:

EN



How to Use the Parts Lists and Diagrams



Accessories and Supplies



Illustrations and Parts Lists

Overview 8-1

How To Use the Parts Lists and Diagrams The figures in this chapter illustrate the major subassemblies in the printer and their component parts. A table accompanies each exploded view diagram. Each table lists the item number for the replaceable part, the associated part number for the item, the quantity, and a description of the part. While looking for an electrical part number, pay careful attention to the voltage listed in the description column to ensure that the part number selected is for the correct model of the printer.

Ordering Parts Note

Parts that have no item number or part number listed are not field replacement parts and cannot be ordered through SMO.

All standard part numbers listed are stocked and may be ordered from HP’s Support Materials Organization (SMO), or Support Materials Europe (SME). Hewlett-Packard Co. Support Materials Organization 8050 Foothills Blvd. Roseville, CA 95678 Parts Direct Ordering: 1-800-227-8164 (U.S. Only) Hewlett-Packard Co. Support Materials, Europe Wolf-Hirth Strasse 33 D-7030 Boblingen, Germany (49 7031) 14-2253

Ordering Consumables Consumables and accessories such as those listed on Table may be ordered from Hewlett-Packard. The phone numbers are: U.S.: 1-800-538-8787 Canada: 1-800-387-3154 (Toronto) 516-671-8383 United Kingdom: 0734-441212 Germany: 0130-3322 8-2 Parts and Diagrams

EN

Contact your local HP Parts Coordinator for other local phone numbers. Note

EN

Parts that have no item number or part number listed are not field replacement parts and cannot be ordered.

How To Use the Parts Lists and Diagrams 8-3

Accessories and Supplies The following items are available through your local authorized HP dealer. To find a dealer near you, call the HP Customer Information Center (800) 752-0900. Note

See page 2-4 for documentation product numbers.

Table 8-1. Accessories and Supplies Description

Part No.

Exchange No.

Product No.

500-sheet Paper Feeder and Tray

C4115A

250-sheet Paper Feeder and Tray

C4114A

Duplex Printing Accessory (duplexer)

C4113-69001

C4113A

250-sheet Replacement Tray

C4116-69001

C4116A

500-sheet Replacement Tray

C4117-69001

C4117A

HP Multi-purpose Paper

HPM1120

HP LaserJet Paper

HPJ1124

Toner Cartridge (10,000 pages)

C4129J

EDO Dual In-line Memory Module (DIMM) 4 MB 8 MB 16 MB

C4135-67901 C4136-67901 C4137-67901

C4135A C4136A C4137A

SDRAM DIMMs 4 MB 8 MB 16 MB 32 MB

C4140-67901 C4141-67901 C4142-67901 C4143-67901

C4140A C4141A C4142A C4143A

Flash DIMM 2 MB 4 MB

C4286A C4287A

Font DIMM (8 MB Asian MROM) Traditional Chinese Simplified Chinese

C4292A C4293A

Hard Disk

C2985A

Parallel Cables 2 Meter IEEE-1284 cable 3 Meter IEEE-1284 cable

C2950A C2951A

8-4 Parts and Diagrams

EN

Table 8-1. Accessories and Supplies (continued) Description

Part No.

Exchange No.

Product No.

Serial Cables 9-9 pin serial cable (male/female) 9-25 pin serial cable (male/female)

C2932A C2933A

Serial Adapter 25-9 pin adapter (male/female)

C2809A

Macintosh Computer Serial Cable

92215S

Macintosh Network Cable Kit

92215N

Enhanced I/O Cards Ethernet RJ-45 only Ethernet RJ-45 and BNC, Local Talk J3111-61003 Token Ring RJ-45 and DB-9

J3110A J3111A J3112A

Maintenance Kit 110V 220V

EN

C4110-67902 C4110-67903

C4110-69006 C4110-69007

Accessories and Supplies 8-5

Common Hardware and Replacement Cables Table 8-2. Screws Used in the Printer Description

Part No.

Screw, M4x10 Pan Head Tapping

XB4-7401-007CN

Screw, M4x8 Truss Head Tapping

XB4-7400-807CN

Screw, M3x6 TP

XA9-0267-000CN

Screw, M4x16 W/Washer

XA9-0838-000CN

Screw, M4x6 W/Washer

XA9-0265-000CN

Screw, M3x4 TP

XA9-0815-000CN

E Ring

XD2-1100-322CN

Screw, M4x6 Screw w/Washer

XB2-6400-607CN

Screw, M3x8 TP Screw

XB6-7300-807CN

Screw, Long DC Controller Screws (M3x25)

XA9-0974-000CN

Screw, with Spring

RF5-2418-000CN

Table 8-3. Replaceable Cables Description

Part No.

Figure No. Item No.

Cable, Display, Accessory Power, Photo Sensor

RG5-3557-000CN

Figure 8-4

26

Cable, Fuser AC

RG5-3561

Figure 8-7

4

Cable, Scanner

RG5-3562

Figure 8-7

3

Cable, Paper Sensor

RG5-3554-000CN

Figure 8-4

20

Cable, Paper Sensor

RG5-3558-000CN

Figure 8-4

21

Cable, Ribbon, from Paper PCA to Controller

RH2-5338-000CN

Figure 8-4

22

8-6 Parts and Diagrams

EN

Illustrations and Parts Lists

Upper Delivery Roller Assembly

Paper Feed Belt Assembly

Paper Feed Roller Assembly

DC Controller Assembly

Printer Drive Assembly

EN

Pickup Drive Assembly

Illustrations and Parts Lists 8-7

Registration Roller Assembly Fuser

Toner Cartridge

Paper Pickup Roller Assembly

Figure 8-1

Paper Tray

Assembly Location Diagram

Table 8-4. Assemblies Listed Alphabetically and Their Part Numbers Description

Part No.

Exchange No.

Exploded View in Figure

DC Controller with Ribbon Cable

RG5-3517-000CN RH2-5337-000CN

C4110-69001

Figure 8-16

Formatter Assembly

C3974-69001

Fusing

RG5-3528-000CN (110V) RG5-3529-000CN (220V)

C4110-69002 C4110-69003

Figure 8-18

Laser Scanner

RG5-3603-000CN

C4110-69008

Figure 8-7

Power Supply 110V with Ribbon Cable

RH3-2195-000CN RH2-5337-000CN

C4110-69004

Figure 8-16

Power Supply 220V with Ribbon Cable

RH3-2196-000CN RH2-5337-000CN

C4110-69005

Figure 8-16

Tray 1 Assembly

RG5-3548-000CN

Figure 8-2

Tray 1 Pickup Assembly

RG5-3519-000CN

Figure 8-5

Upper Delivery Roller Assembly

RG5-3542-000CN

Figure 8-8

8-8 Parts and Diagrams

EN

Table 8-4. Assemblies Listed Alphabetically and Their Part Numbers (continued) Description

Part No.

Paper Feed Roller Assembly

RG5-3522-000CN

Figure 8-11

Paper Feed Belt

RG5-3526-000CN

Figure 8-10

Registration Roller Assembly

RG5-3524-000CN

Figure 8-12

EN

Exchange No.

Exploded View in Figure

Illustrations and Parts Lists 8-9

7

5 A B

E

D G

1

F

C H

8

B C

I

3

A

2 6

6

9

4 10 Figure 8-2

External Covers and Panels

Table 8-5. External Covers and Panels Item No. Part No.

Quantity

Description

1

RG5-3547-000CN

1

Front Inner Cover Assembly

1A

RB1-6134-000CN

1

Tray 1 Sensor Arm

1B

RB1-6136-000CN

1

Tray 1 Sensor Arm Spring

8-10 Parts and Diagrams

EN

Table 8-5. External Covers and Panels (continued) Item No. Part No.

Quantity

Description

1C

RB2-1772-000CN

1

Tray 1 Leaf Spring

2

RG5-3548-000CN

1

Tray 1 Paper Guide

3

RG5-3549-000CN

1

Front Cover Assembly

4

RG5-3550-000CN

1

Left Side Cover Assembly

5

RG5-3551-000CN

1

Rear Cover Assembly

5A

RG5-3552-000CN

1

Face Up Tray Assembly

5B

RB2-1970-000CN

1

Paper Guide

5C

RB2-1975-000CN

1

Right Latch Plate

5D

RS5-2952-000CN

4

Latch Plate Springs

5E

RB2-1976-000CN

1

Left Latch Plate

5F

RB2-1991-000CN

1

Right Latch Block

5G

RB2-1992-000CN

1

Left Latch Block

5H

RB2-1977-000CN

1

Cover Support Strap

5I

RB2-1978-000CN

1

Face Up Deflector

6

RB2-1745-000CN

2

Front Cover Pin

7

RB2-1749-000CN

1

Right Side Cover Assembly

8

RB2-1747-000CN

1

Face Down Auxiliary Cover

9

RB2-1755-000CN

1

Right Corner Cover

10

RB2-1756-000CN

1

Left Corner Cover

EN

Illustrations and Parts Lists 8-11

2 4

5

1

3

Figure 8-3

Upper Cover Assembly

Table 8-6. Top Cover Assembly Item No.

Part No.

Quantity

Description

1

RG5-3604-000CN

1

Control Panel Assembly

2

C4110-40004

1

Control Panel Overlay (English)

8-12 Parts and Diagrams

EN

Table 8-6. Top Cover Assembly (continued) Item No.

Part No.

Quantity

Description

3

RG5-3556-000CN

1

Toner Cartridge Door Assembly

4

RB2-1759-000CN

1

Control Panel Leaf Spring

5

RB2-1906-000CN

1

Cleaning Brush

EN

Illustrations and Parts Lists 8-13

20

18

1 10

11

3

12 9

6 7

13

8

2

19 26

17

5 22 15

4

Screws: M4x10, Tapping, Pan Head unless otherwise indicated

23 21 24 16 14 25 Figure 8-4

Internal Components (1 of 4) Cables are listed in Table 8-3 on page 8-6.

Table 8-7. Internal Components (1 of 4) Item No. Part No.

Quantity

Description

1

1

Tray 1 Paper Guide Plate Assembly

RG5-3520-000CN

8-14 Parts and Diagrams

EN

Table 8-7. Internal Components (1 of 4) (continued) Item No. Part No.

Quantity

Description

2

RG5-3553-000CN

1

Rear Door Sensor Assembly

3

RG5-3585-000CN

1

Tray 1 Separation Pad with Spring

4

RH7-5195-000CN

1

Paper Pick Up Solenoid

5

WS6-5092-000CN

1

Power Connector

6

RB2-1782-000CN

1

Paper Sensor Lever

7

RB2-1784-000CN

1

Paper Sensor Lever Spring

8

RB2-1781-000CN

1

Paper Sensor Lever

9

RB2-1783-000CN

1

Paper Sensor Lever Spring

10

RB2-1985-000CN

1

Lower Delivery Roller

11

RB2-1988-000CN

1

Right Bushing Lower Delivery Roller

12

RB2-1989-000CN

1

Left Bushing Lower Delivery Roller

13

RS6-0357-000CN

1

Lower Delivery Shaft Gear

14

RH7-5192-000CN

1

Paper Feed Clutch

15

RB2-1734-000CN

1

Grounding Plate

16

RB2-1735-000CN

1

Grounding Plate

17

RB2-1737-000CN

1

Grounding Plate

18

RB1-6141-000CN

1

Grounding Plate

19

RB2-1990-000CN

1

Grounding Plate

23

XA9-0267-000CN

2

M3x6 Screw, TP

24

XB4-7401-007CN

14

M4x10 Screw, Tapping, Pan Head

25

RB2-1825-000CN

1

Leaf Spring

EN

Illustrations and Parts Lists 8-15

22

17

24

9

8 20

18

19

23

25 7

24

13 12 12

13

21 10

15 16

1

14

11

2 3

1

6 5

4 Screws M4x10, Tapping, Pan Head unless otherwise noted

Figure 8-5

Internal Components (2 of 4)

8-16 Parts and Diagrams

EN

Table 8-8. Internal Components (2 of 4) Item No. Part No.

Quantity

Description

1

RS5-1392-000CN

2

Tray 1 and 2 Pickup Shaft Left Bushing

2

RS5-0695-000CN

1

Tray 2 Shaft Gear

3

RS5-2434-000CN

1

Spring

4

RB1-2190-000CN

1

Tray 2 Hook

5

RF5-2397-000CN

1

Tray 2 Rail Left

6

RF5-2398-000CN

1

Tray 2 Rail Right

7

RG5-3545-000CN

1

Power Inlet Assembly

8

RB2-1744-000CN

1

On/Off Switch

9

RB2-1731-000CN

1

Switch Rod

10

RG5-3519-000CN

1

Tray 1 Pickup Roller Assembly

11

RB1-6130-000CN

1

Tray 1 Pickup Gear

12

RB1-6179-000CN

2

Pickup Shaft Bushing - Tray 1 and 2

13

RB1-6177-000CN

2

Pickup Shaft Bushing - Tray 1 and 2

14

RB2-1820-000CN

1

Pickup Roller

15

RB2-1797-000CN

1

Cam Right

16

RB2-1796-000CN

1

Cam Left

17

RH7-1354-000CN

1

Fan

18

RB2-1738-000CN

1

Shutter Lever

19

RB2-1774-000CN

1

Cartridge Guide Left

20

RB2-1775-000CN

1

Cartridge Guide Right

21

RB2-1780-000CN

1

Paper Guide

22

RB2-1740-000CN

1

Grounding Plate/Fan Housing

23

RB2-1736-000CN

1

Grounding Plate

24

XB2-6400-607CN

2

M4X6 Screw w/ Washer

25

XB1-2300-607CN

2

M3x6 Screw, Mach., Truss Head

XB4-7401-007CN

6

M4x10 Screw, Tapping, Pan Head

EN

Illustrations and Parts Lists 8-17

1

5

10 3

6

9

4 2

8 7

Figure 8-6

Internal Components (3 of 4)

8-18 Parts and Diagrams

EN

Table 8-9. Internal Components (3 of 4) Item No. Part No.

Quantity

Description

1

RG5-3525-000CN

1

Transfer Guide Assembly

2

RB2-1996-000CN

4

Face Down Guide Roller

3

RB2-1997-000CN

4

Roller Holder

4

RS5-2225-020CN

4

Roller Spring

5

RB1-6251-000CN

4

Lower Delivery Roller

6

RB1-6252-000CN

4

Lower Delivery Roller Spring

7

RB2-1732-000CN

1

Door Switch

8

RB2-1739-000CN

1

Door Switch Spring

9

RF5-2399-000CN

1

Pad Assembly

10

RB2-2068-000CN

1

Roller Mount 1

EN

Illustrations and Parts Lists 8-19

5 3

1

4

Figure 8-7

2

Internal Components (4 of 4)

8-20 Parts and Diagrams

EN

Table 8-10. Internal Components (4 of 4) Item No. Part No.

Quantity

Description

1

RG5-3579-000CN

1

Transfer Roller Assembly

2

RG5-3603-000CN

1

Laser Scanner Assembly

3

RG5-3562-000CN

1

Cable (Scanner)

4

RG5-3561-000CN

1

Cable (Fuser AC)

5

XA9-0838-000CN

4

Screw with washer m4x16

EN

Illustrations and Parts Lists 8-21

2 3

7

8

5

6

4

1 Figure 8-8

Upper Delivery Assembly

Table 8-11. Upper Delivery Assembly Item No. Part No.

Quantity

Description

1

RG5-3542-000CN

1

Upper Delivery Assembly

2

RB2-1980-000CN

1

Face Down Bin Full Sensor Lever

3

RB2-1986-000CN

1

Right Bushing

4

RB2-1987-000CN

1

Left Bushing

5

RB2-1984-000CN

1

Delivery Roller

6

RS6-0357-000CN

1

Delivery Roller Gear

7

RF5-2415-000CN

1

Delivery Guide

8

RB2-1981-000CN

1

Static Charge Eliminator

8-22 Parts and Diagrams

EN

1

7 3 8 4 2 5 9 6

Figure 8-9

Tray 2 Paper Pickup Roller Assembly

Table 8-12. Tray 2 Paper Pickup Roller Assembly Item No. Part No.

Quantity

Description

1

RG5-3521-000CN

1

Paper Pick Up Roller Assembly (Tray 2)

2

RB2-1821-000CN

1

Pickup Roller 250-sheet Trays

3

RB2-1802-000CN

1

Left Roller Cam

4

RB2-1805-000CN

1

Right Roller Cam

5

RB2-1815-000CN

1

Left Pickup Roller Collar

6

RB1-6149-000CN

1

Left Pickup Roller Bushing

7

RB2-1803-000CN

1

Right Pickup Roller Collar

8

RB2-1804-000CN

1

Right Pickup Roller Bushing

9

RB2-1800-000CN

1

Tray 2 Pickup Roller Shaft

EN

Illustrations and Parts Lists 8-23

6

2 3 5 4 7 8

12 11

9 10

1 Figure 8-10

Paper Feed Belt Assembly

8-24 Parts and Diagrams

EN

Table 8-13. Paper Feed Belt Assembly Item No. Part No.

Quantity

Description

1

RG5-3526-000CN

1

Paper Feed Belt Assembly

2

RB2-1888-000CN

2

Small Paper Feed Belts

3

RB2-1887-000CN

1

Large Feed Belt

4

RB2-1886-000CN

1

Paper Feed Shaft

5

RB1-6192-000CN

1

Paper Feed Shaft

6

RB1-6195-000CN

2

Paper Feed Pulley

7

RS6-0351-000CN

1

Paper Feed Gear

8

RS6-0352-000CN

1

Paper Feed Gear

9

RB2-1904-000CN

1

Transfer Roller Bushing (left)

10

RS5-2431-000CN

1

Transfer Roller Spring (left)

11

RB2-1903-000CN

1

Transfer Roller Bushing (right)

12

RB2-1905-000CN

1

Transfer Roller Bushing Cover (right)

EN

Illustrations and Parts Lists 8-25

2

4

3

5

1 Figure 8-11

Paper Feed Assembly

8-26 Parts and Diagrams

EN

Table 8-14. Paper Feed Assembly Item No. Part No.

Quantity

Description

1

RG5-3522-000CN

1

Paper Feed Roller Assembly

2

RB2-1807-000CN

1

Sensor Flag Lever

3

RB2-1808-000CN

1

Sensor Flag Spring

4

RG5-3523-000CN

1

Sensor Cable

5

WG8-5362-000CN

1

Photo Sensor

EN

Illustrations and Parts Lists 8-27

1

Figure 8-12

Registration Roller Assembly

8-28 Parts and Diagrams

EN

Table 8-15. Registration Roller Assembly Item No. Part No.

Quantity

Description

1

1

Registration Roller Assembly

EN

RG5-3524-000CN

Illustrations and Parts Lists 8-29

2

4 3

5

1 Figure 8-13

250-sheet Tray

8-30 Parts and Diagrams

EN

Table 8-16. 250-sheet Tray Item No. Part No.

Quantity

Description

1

C4116A

1

250-sheet Universal Paper Tray

2

RB2-2037-000CN

1

Tray Cover

3

RB2-2020-000CN

1

Tray Extension

4

RB2-2042-000CN

2

Universal Tray Extension Lock

5

RF5-3585-000CN

1

Separation Pad/Spring

EN

Illustrations and Parts Lists 8-31

3

4

2

1 Figure 8-14

Main Drive Assembly

8-32 Parts and Diagrams

EN

Table 8-17. Main Drive Assembly Item No. Part No.

Quantity

Description

1

RG5-3543-000CN

1

Main Gear Assembly

2

RB2-1856-000CN

1

Toner Cartridge Engagement Arm

3

RH7-1356-000CN

1

Main Motor

4

XA9-0267-000CN

3

Screw, TP, M3x6

EN

Illustrations and Parts Lists 8-33

3

2

1

Figure 8-15

Pickup Drive Assembly

Table 8-18. Pickup Drive Assembly Item No. Part No.

Quantity

Description

1

RG5-3544-000CN

1

Pickup Gear Assembly

2

RH7-5193-000CN

1

Pickup Solenoid

3

XA9-0815-000CN

1

Screw, TP, M3x4

8-34 Parts and Diagrams

EN

3

2

1

Figure 8-16

PCA Assembly Locations

Table 8-19. PCA Assembly Locations Item No. Part No.

Quantity

Description

1

RG5-3560-000CN

1

Paper Handling PCA

2

RG5-3517-000CN

1

DC Controller

3

RH3-2195-000CN

1

Power Supply (100 - 120 V)

3

RH3-2196-000CN

1

Power Supply (220 - 240 V)

EN

Illustrations and Parts Lists 8-35

1

2

3 Figure 8-17

Printer Controller Assembly

Table 8-20. Printer Controller Assembly Item No. Part No.

Quantity

Description

1

RH2-5337-000CN

1

Flat Cable

2

RB2-1790-000CN

1

Sensor Mount (Rear of Controller Pan)

3

RB2-1791-000CN

1

Sensor Lever

8-36 Parts and Diagrams

EN

1

Figure 8-18

Fuser

Table 8-21. Fuser Item No. Part No.

Quantity

Description

1

RG5-3528-000CN

1

Fuser (100 - 120 V)

1

RG5-3529-000CN

1

Fuser (220 - 240 V)

EN

Illustrations and Parts Lists 8-37

2

4

3

10

8

13

9

5

1 11 7

11 6

12 Figure 8-19

12

500-sheet Feeder

8-38 Parts and Diagrams

EN

Table 8-22. 500-sheet Feeder Item No. Part No.

Quantity

Description

1

RB2-3211-000CN

1

Right Mount

2

RB2-3235-000CN

1

Front Cover

3

RB2-3236-000CN

1

Right Auxiliary Cover

4

RB2-3237-000CN

1

Left Auxiliary Cover

5

RB2-3238-000CN

1

Right Cover

6

RB2-3239-000CN

1

Left Cover

7

RB2-3284-000CN

1

Leaf Spring

8

RB2-3213-000CN

1

Inner Cover

9

RB2-3286-000CN

1

Leaf Spring

10

RG5-4180-000CN

1

Left Frame Assembly

11

XB1-2300-407CN

1

Screw, Mach., Truss Head, M3x4

12

XB4-7401-007CN

10

Screw, Tapping, Pan Head, M4x10

13

XB4-7300-807CN

1

Screw, Tapping, Truss Head, M3X8

RB2-3262-000CN

1

Return Cover (Figure 6-70 on page 6-81)

RB2-3247-000CN

1

Tray Cover, 500-sheet Feeder

EN

Illustrations and Parts Lists 8-39

1

2

3

4 9

8 5

7 6 Figure 8-20

500-sheet Feeder

8-40 Parts and Diagrams

EN

Table 8-23. 500-sheet Feeder Item No. Part No.

Quantity

Description

1

RG5-4213-000CN

1

Upper Contact Cable

2

RG5-4211-000CN

1

Feeder Controller PCA Assembly

3

XB4-7300-807CN

2

M3x8 Screw, Tapping, Truss Head

4

RF5-2633-000CN

1

Tray Sensor Assembly

5

RF5-2634-000CN

1

Feed Roller

6

RB1-8877-000CN

1

Joint

7

RF5-2636-000CN

1

Pickup Roller

8

RF5-2632-000CN

1

Tension Spring

9

RF5-2635-000CN

1

Paper Arm

EN

Illustrations and Parts Lists 8-41

Alphabetical Parts List Description

Part Number

Table Number and Page

250-sheet Universal Paper Tray

C4116A

Table 8-16 on page 8-31

Cable (Fuser AC)

RG5-3561-000CN

Table 8-10 on page 8-21

Cable (Scanner)

RG5-3562-000CN

Table 8-10 on page 8-21

Cable, Display, Accessory Power, Photo Sensor

RG5-3557-000CN

Figure 8-4 on page 8-14

Cable, Paper Sensor

RG5-3554-000CN

Figure 8-4 on page 8-14

Cable, Paper Sensor

RG5-3558-000CN

Figure 8-4 on page 8-14

Cable, Ribbon, from Paper PCA to Controller

RH2-5338-000CN

Figure 8-4 on page 8-14

Cam Left

RB2-1796-000CN

Table 8-8 on page 8-17

Cam Right

RB2-1797-000CN

Table 8-8 on page 8-17

Cartridge Guide Left

RB2-1774-000CN

Table 8-8 on page 8-17

Cartridge Guide Right

RB2-1775-000CN

Table 8-8 on page 8-17

Cleaning Brush

RB2-1906-000CN

Table 8-6 on page 8-12

Control Panel Assembly

RG5-3604-000CN

Table 8-6 on page 8-12

Control Panel Leaf Spring

RB2-1759-000CN

Table 8-6 on page 8-12

Control Panel Overlay (English)

C4110-40004

Table 8-6 on page 8-12

Cover Support Strap

RB2-1977-000CN

Table 8-5 on page 8-10

Damper, 500-sheet Feeder

RB1-8883-000CN

Table 8-23 on page 8-41

DC Controller

RG5-3517-000CN

Table 8-19 on page 8-35

DC Controller with Ribbon Cable

RG5-3517-000CN (110V) RH2-5337-000CN (220V)

Figure 8-16 on page 8-35

Delivery Guide

RF5-2415-000CN

Table 8-11 on page 8-22

Delivery Roller

RB2-1984-000CN

Table 8-11 on page 8-22

Delivery Roller Gear

RS6-0367-000CN

Table 8-11 on page 8-22

Door Switch

RB2-1732-000CN

Table 8-9 on page 8-19

Door Switch Spring

RB2-1739-000CN

Table 8-9 on page 8-19

E Ring

XD2-1100-322CN

Table 8-2 on page 8-6

Face Down Auxiliary Cover

RB2-1747-000CN

Table 8-5 on page 8-10

Face Down Bin Full Sensor Lever

RB2-1980-000CN

Table 8-11 on page 8-22

Face Down Guide Roller

RB2-1996-000CN

Table 8-9 on page 8-19

Face Up Deflector

RB2-1978-000CN

Table 8-5 on page 8-10

Face Up Tray Assembly

RG5-3552-000CN

Table 8-5 on page 8-10

Fan

RH7-1354-000CN

Table 8-8 on page 8-17

Feed Roller, 500-sheet Feeder

RF5-2634-000CN

Table 8-23 on page 8-41

8-42 Parts and Diagrams

EN

Description

Part Number

Table Number and Page

Feeder Controller PCA Assembly, 500-sheet Feeder

RG5-4211-000CN

Table 8-23 on page 8-41

Flat Cable

RH2-5337-000CN

Table 8-20 on page 8-36

Formatter Assembly

C3974-69001

Front Cover, 500-sheet Feeder

RB2-3235-000CN

Front Cover Assembly

RG5-3549-000CN

Table 8-5 on page 8-10

Front Cover Pin

RB2-1745-000CN

Table 8-5 on page 8-10

Front Inner Cover Assembly

RG5-3547-000CN

Table 8-5 on page 8-10

Fuser (100 - 120 V)

RG5-3528-000CN

Table 8-21 on page 8-37

Fuser (220 - 240 V)

RG5-3529-000CN

Table 8-21 on page 8-37

Grounding Plate

RB2-1734-000CN

Table 8-7 on page 8-14

Grounding Plate

RB2-1735-000CN

Table 8-7 on page 8-14

Grounding Plate

RB2-1737-000CN

Table 8-7 on page 8-14

Grounding Plate

RB1-6141-000CN

Table 8-7 on page 8-14

Grounding Plate

RB2-1990-000CN

Table 8-7 on page 8-14

Grounding Plate

RB2-1736-000CN

Table 8-8 on page 8-17

Grounding Plate/Fan Housing

RB2-1740-000CN

Table 8-8 on page 8-17

Inner Cover, 500-sheet Feeder

RB2-3213-000CN

Table 8-22 on page 8-39

Joint, 500-sheet Feeder

RB1-8877-000CN

Table 8-23 on page 8-41

Large Feed Belt

RB2-1887-000CN

Table 8-13 on page 8-25

Table 8-22 on page 8-39

Laser Scanner Assembly

RG5-3603-000CN

Table 8-10 on page 8-21

Latch Plate Springs

RS5-2952-000CN

Table 8-5 on page 8-10

Leaf Spring

RB2-1825-000CN

Table 8-7 on page 8-14

Leaf Spring, 500-sheet Feeder

RB2-3284-000CN

Table 8-22 on page 8-39

Leaf Spring, 500-sheet Feeder

RB2-3286-000CN

Table 8-22 on page 8-39

Left Auxiliary Cover, 500-sheet Feeder

RB2-3237-000CN

Table 8-22 on page 8-39

Left Bushing

RB2-1987-000CN

Table 8-11 on page 8-22

Left Bushing Lower Delivery Roller

RB2-1989-000CN

Table 8-7 on page 8-14

Left Corner Cover

RB2-1756-000CN

Table 8-5 on page 8-10

Left Cover, 500-sheet Feeder

RB2-3239-000CN

Table 8-22 on page 8-39

Left Frame Assembly

RG5-4180-000CN

Table 8-22 on page 8-39

Left Latch Block

RB2-1992-000CN

Table 8-5 on page 8-10

Left Latch Plate

RB2-1976-000CN

Table 8-5 on page 8-10

Left Pickup Roller Bushing

RB1-6149-000CN

Table 8-12 on page 8-23

Left Pickup Roller Collar

RB2-1815-000CN

Table 8-12 on page 8-23

Left Roller Cam

RB2-1802-000CN

Table 8-12 on page 8-23

Left Side Cover Assembly

RG5-3550-000CN

Table 8-5 on page 8-10

Lower Delivery Roller

RB2-1985-000CN

Table 8-7 on page 8-14

Lower Delivery Roller

RB1-6251-000CN

Table 8-9 on page 8-19

EN

Illustrations and Parts Lists 8-43

Description

Part Number

Table Number and Page

Lower Delivery Roller Spring

RB1-6252-000CN

Table 8-9 on page 8-19

Lower Delivery Shaft Gear

RS6-0357-000CN

Table 8-7 on page 8-14

M3x6 Screw, Mach., Truss Head

XB1-2300-607CN

Table 8-8 on page 8-17

M3x8 Screw, Tapping, Truss Head

XB4-7300-807CN

Table 8-23 on page 8-41

Main Gear Assembly

RG5-3543-000CN

Table 8-17 on page 8-33

Main Motor

RH7-1356-000CN

Table 8-17 on page 8-33

On/Off Switch

RB2-1744-000CN

Table 8-8 on page 8-17

Pad Assembly

RF5-2399-000CN

Table 8-9 on page 8-19

Paper Arm

RF5-2635-000CN

Table 8-23 on page 8-41

Paper Feed Belt

RG5-3526-000CN

Table 8-12 on page 8-23

Paper Feed Clutch

RH7-5192-000CN

Table 8-7 on page 8-14

Paper Feed Gear

RS6-0351-000CN

Table 8-13 on page 8-25

Paper Feed Gear

RS6-0352-000CN

Table 8-13 on page 8-25

Paper Feed Pulley

RB1-6195-000CN

Table 8-13 on page 8-25

Paper Feed Roller Assembly

RG5-3522-000CN

Table 8-14 on page 8-27

Paper Feed Shaft

RB2-1886-000CN

Table 8-13 on page 8-25

Paper Feed Shaft

RB1-6192-000CN

Table 8-13 on page 8-25

Paper Guide

RB2-1970-000CN

Table 8-5 on page 8-10

Paper Guide

RB2-1780-000CN

Table 8-8 on page 8-17

Paper Handling PCA

RG5-3560-000CN

Table 8-19 on page 8-35

Paper Pickup Roller Assembly (Tray 2)

RG5-3521-000CN

Table 8-12 on page 8-23

Paper Pick Up Solenoid

RH7-5195-000CN

Table 8-7 on page 8-14

Paper Sensor Lever

RB2-1782-000CN

Table 8-7 on page 8-14

Paper Sensor Lever

RB2-1781-000CN

Table 8-7 on page 8-14

Paper Sensor Lever Spring

RB2-1784-000CN

Table 8-7 on page 8-14

Paper Sensor Lever Spring

RB2-1783-000CN

Table 8-7 on page 8-14

Photo Sensor

WG8-5362-000CN

Table 8-14 on page 8-27

Pickup Gear Assembly

RG5-3544-000CN

Table 8-18 on page 8-34

Pickup Roller

RB2-1820-000CN

Table 8-8 on page 8-17

Pickup Roller 250-sheet Trays

RB2-1821-000CN

Table 8-12 on page 8-23

Pickup Roller 500-sheet Feeder

RF5-2636-000CN

Table 8-23 on page 8-41

Pickup Shaft Bushing - Tray 1 and 2

RB1-6179-000CN

Table 8-8 on page 8-17

Pickup Shaft Bushing - Tray 1 and 2

RB1-6177-000CN

Table 8-8 on page 8-17

Pickup Solenoid

RH7-5193-000CN

Table 8-18 on page 8-34

Power Connector

WS6-5092-000CN

Table 8-7 on page 8-14

Power Inlet Assembly

RG5-3545-000CN

Table 8-8 on page 8-17

Power Supply (100 - 120 V)

RH3-2195-000CN

Table 8-19 on page 8-35

Power Supply (220 - 240 V)

RH3-2196-000CN

Table 8-19 on page 8-35

Rear Cover Assembly

RG5-3551-000CN

Table 8-5 on page 8-10

8-44 Parts and Diagrams

EN

Description

Part Number

Table Number and Page

Rear Door Sensor Assembly

RG5-3553-000CN

Table 8-7 on page 8-14

Registration Roller Assembly

RG5-3524-000CN

Table 8-15 on page 8-29

Return Cover, 500-sheet Feeder

RB2-3262-000CN

Figure 6-70 on page 6-81

Right Auxiliary Cover, 500-sheet Feeder

RB2-3236-000CN

Table 8-22 on page 8-39

Right Bushing

RB2-1986-000CN

Table 8-11 on page 8-22

Right Bushing Lower Delivery Roller

RB2-1988-000CN

Table 8-7 on page 8-14

Right Corner Cover

RB2-1755-000CN

Table 8-5 on page 8-10

Right Cover, 500-sheet Feeder

RB2-3238-000CN

Table 8-22 on page 8-39

Right Latch Block

RB2-1991-000CN

Table 8-5 on page 8-10

Right Latch Plate

RB2-1975-000CN

Table 8-5 on page 8-10

Right Mount

RB2-3211-000CN

Table 8-22 on page 8-39

Right Pickup Roller Bushing

RB2-1804-000CN

Table 8-12 on page 8-23

Right Pickup Roller Collar

RB2-1803-000CN

Table 8-12 on page 8-23

Right Roller Cam

RB2-1805-000CN

Table 8-12 on page 8-23

Right Side Cover Assembly

RB2-1749-000CN

Table 8-5 on page 8-10

Roller Holder

RB2-1997-000CN

Table 8-9 on page 8-19

Roller Mount 1

RB2-2068-000CN

Table 8-9 on page 8-19

Roller Spring

RS5-2225-020CN

Table 8-9 on page 8-19

Screw, Long DC Controller Screws (M3x25)

XA9-0974-000CN

Table 8-2 on page 8-6

Screw, M3x4 TP

XA9-0815-000CN

Table 8-2 on page 8-6

Screw, M3x6 TP

XA9-0267-000CN

Table 8-2 on page 8-6

Screw, M3x8 TP Screw

XB6-7300-807CN

Table 8-2 on page 8-6

Screw, M4x10 Pan Head Tapping

XB4-7401-007CN

Table 8-2 on page 8-6

Screw, M4x16 W/Washer

XA9-0838-000CN

Table 8-2 on page 8-6

Screw, M4x6 Screw w/Washer

XB2-6400-607CN

Table 8-2 on page 8-6

Screw, M4x6 W/Washer

XA9-0265-000CN

Table 8-2 on page 8-6

Screw, M4x8 Truss Head Tapping

XB4-7400-807CN

Table 8-2 on page 8-6

Screw, Mach., Truss Head, M4x10

XB4-2300-407CN

Table 8-22 on page 8-39

Screw, with Spring

RF5-2418-000CN

Table 8-2 on page 8-6

Sensor Cable

RG5-3523-000CN

Table 8-14 on page 8-27

Sensor Flag Lever

RB2-1807-000CN

Table 8-14 on page 8-27

Sensor Flag Spring

RB2-1808-000CN

Table 8-14 on page 8-27

Sensor Lever

RB2-1791-000CN

Table 8-20 on page 8-36

Sensor Mount (Rear of Controller Pan)

RB2-1790-000CN

Table 8-20 on page 8-36

Separation Pad/Spring

RF5-3585-000CN

Table 8-16 on page 8-31

Shutter Lever

RB2-1738-000CN

Table 8-8 on page 8-17

Small Paper Feed Belts

RB2-1888-000CN

Table 8-13 on page 8-25

Spring

RS5-2434-000CN

Table 8-8 on page 8-17

EN

Illustrations and Parts Lists 8-45

Description

Part Number

Table Number and Page

Static Charge Eliminator

RB2-1981-000CN

Table 8-11 on page 8-22

Switch Rod

RB2-1731-000CN

Table 8-8 on page 8-17

Tension Spring, 500-sheet Feeder

RF5-2632-000CN

Table 8-23 on page 8-41

Toner Cartridge Door Assembly

RG5-3556-000CN

Table 8-6 on page 8-12

Toner Cartridge Engagement Arm

RB2-1856-000CN

Table 8-17 on page 8-33

Transfer Guide Assembly

RG5-3525-000CN

Table 8-9 on page 8-19

Transfer Roller Assembly

RG5-3579-000CN

Table 8-10 on page 8-21

Transfer Roller Bushing (left)

RB2-1904-000CN

Table 8-13 on page 8-25

Transfer Roller Bushing (right)

RB2-1903-000CN

Table 8-13 on page 8-25

Transfer Roller Bushing Cover (right)

RB2-1905-000CN

Table 8-13 on page 8-25

Transfer Roller Spring (left)

RS5-2431-000CN

Table 8-13 on page 8-25

Tray 1 Leaf Spring

RB2-1772-000CN

Table 8-5 on page 8-10

Tray 1 and 2 Pickup Shaft Left Bushing

RS5-1392-000CN

Table 8-8 on page 8-17

Tray 1 Paper Guide

RG5-3548-000CN

Table 8-5 on page 8-10

Tray 1 Paper Guide Plate Assembly

RG5-3520-000CN

Table 8-7 on page 8-14

Tray 1 Pickup Assembly

RG5-3519-000CN

Table 8-4 on page 8-8

Tray 1 Pickup Gear

RB1-6130-000CN

Table 8-8 on page 8-17

Tray 1 Pickup Roller Assembly

RG5-3519-000CN

Table 8-8 on page 8-17

Tray 1 Sensor Arm

RB1-6134-000CN

Table 8-5 on page 8-10

Tray 1 Sensor Arm Spring

RB1-6136-000CN

Table 8-5 on page 8-10

Tray 1 Separation Pad with Spring

RG5-3585-000CN

Table 8-7 on page 8-14

Tray 2 Hook

RB1-2190-000CN

Table 8-8 on page 8-17

Tray 2 Pickup Roller Shaft

RB2-1800-000CN

Table 8-12 on page 8-23

Tray 2 Rail Left

RF5-2397-000CN

Table 8-8 on page 8-17

Tray 2 Rail Right

RF5-2398-000CN

Table 8-8 on page 8-17

Tray 2 Shaft Gear

RS5-0695-000CN

Table 8-8 on page 8-17

Tray Cover, 250-sheet Feeder

RB2-2037-000CN

Table 8-16 on page 8-31

Tray Cover, 500-sheet Feeder

RB2-3247-000CN

Table 8-22 on page 8-39

Tray Extension

RB2-2020-000CN

Table 8-16 on page 8-31

Tray Sensor Assembly, 500-sheet Feeder RF5-2633-000CN

Table 8-23 on page 8-41

Universal Tray Extension Lock

RB2-2042-000CN

Table 8-16 on page 8-31

Upper Delivery Assembly

RG5-3542-000CN

Table 8-11 on page 8-22

Upper Contact Cable, 500-sheet Feeder

RG5-4213-000CN

Table 8-23 on page 8-41

Upper Delivery Roller Assembly

RG5-2648-000CN

Figure 8-8 on page 8-22

8-46 Parts and Diagrams

EN

Numerical Parts List Part Number

Description

Table Number and Page

C3974-69001

Formatter Assembly

C4116A

250-sheet Universal Paper Tray

Table 8-16 on page 8-31

C4110-40004

Control Panel Overlay (English)

Table 8-6 on page 8-12

RB1-2190-000CN

Tray 2 Hook

Table 8-8 on page 8-17

RB1-6130-000CN

Tray 1 Pickup Gear

Table 8-8 on page 8-17

RB1-6134-000CN

Tray 1 Sensor Arm

Table 8-5 on page 8-10

RB1-6136-000CN

Tray 1 Sensor Arm Spring

Table 8-5 on page 8-10

RB1-6141-000CN

Grounding Plate

Table 8-7 on page 8-14

RB1-6149-000CN

Left Pickup Roller Bushing

Table 8-12 on page 8-23

RB1-6177-000CN

Pickup Shaft Bushing - Tray 1 and 2

Table 8-8 on page 8-17

RB1-6179-000CN

Pickup Shaft Bushing - Tray 1 and 2

Table 8-8 on page 8-17

RB1-6192-000CN

Paper Feed Shaft

Table 8-13 on page 8-25

RB1-6195-000CN

Paper Feed Pulley

Table 8-13 on page 8-25

RB1-6251-000CN

Lower Delivery Roller

Table 8-9 on page 8-19

RB1-6252-000CN

Lower Delivery Roller Spring

Table 8-9 on page 8-19

RB1-8877-000CN

Joint, 500-sheet Feeder

Table 8-23 on page 8-41

RB1-8883-000CN

Damper, 500-sheet Feeder

Table 8-23 on page 8-41

RB2-1731-000CN

Switch Rod

Table 8-8 on page 8-17

RB2-1732-000CN

Door Switch

Table 8-9 on page 8-19

RB2-1734-000CN

Grounding Plate

Table 8-7 on page 8-14

RB2-1735-000CN

Grounding Plate

Table 8-7 on page 8-14

RB2-1736-000CN

Grounding Plate

Table 8-8 on page 8-17

RB2-1737-000CN

Grounding Plate

Table 8-7 on page 8-14

RB2-1738-000CN

Shutter Lever

Table 8-8 on page 8-17

RB2-1739-000CN

Door Switch Spring

Table 8-9 on page 8-19

RB2-1740-000CN

Grounding Plate/Fan Housing

Table 8-8 on page 8-17

RB2-1744-000CN

On/Off Switch

Table 8-8 on page 8-17

RB2-1745-000CN

Front Cover Pin

Table 8-5 on page 8-10

RB2-1747-000CN

Face Down Auxiliary Cover

Table 8-5 on page 8-10

RB2-1749-000CN

Right Side Cover Assembly

Table 8-5 on page 8-10

RB2-1755-000CN

Right Corner Cover

Table 8-5 on page 8-10

RB2-1756-000CN

Left Corner Cover

Table 8-5 on page 8-10

RB2-1759-000CN

Control Panel Leaf Spring

Table 8-6, on page 8-12

RB2-1772-000CN

Tray 1 Leaf Spring

Table 8-5 on page 8-10

RB2-1774-000CN

Cartridge Guide Left

Table 8-8 on page 8-17

RB2-1775-000CN

Cartridge Guide Right

Table 8-8 on page 8-17

RB2-1780-000CN

Paper Guide

Table 8-8 on page 8-17

EN

Illustrations and Parts Lists 8-47

Part Number

Description

Table Number and Page

RB2-1781-000CN

Paper Sensor Lever

Table 8-7 on page 8-14

RB2-1782-000CN

Paper Sensor Lever

Table 8-7 on page 8-14

RB2-1783-000CN

Paper Sensor Lever Spring

Table 8-7 on page 8-14

RB2-1784-000CN

Paper Sensor Lever Spring

Table 8-7 on page 8-14

RB2-1790-000CN

Sensor Mount (Rear of Controller Pan) Table 8-20 on page 8-36

RB2-1791-000CN

Sensor Lever

RB2-1796-000CN

Cam Left

Table 8-8 on page 8-17

RB2-1797-000CN

Cam Right

Table 8-8 on page 8-17

RB2-1800-000CN

Tray 2 Pickup Roller Shaft

Table 8-12 on page 8-23

Table 8-20 on page 8-36

RB2-1802-000CN

Left Roller Cam

Table 8-12 on page 8-23

RB2-1803-000CN

Right Pickup Roller Collar

Table 8-12 on page 8-23

RB2-1804-000CN

Right Pickup Roller Bushing

Table 8-12 on page 8-23

RB2-1805-000CN

Right Roller Cam

Table 8-12 on page 8-23

RB2-1807-000CN

Sensor Flag Lever

Table 8-14 on page 8-27

RB2-1808-000CN

Sensor Flag Spring

Table 8-14 on page 8-27

RB2-1815-000CN

Left Pickup Roller Collar

Table 8-12 on page 8-23

RB2-1820-000CN

Pickup Roller

Table 8-8 on page 8-17

RB2-1821-000CN

Pickup Roller 250 Sheet Trays

Table 8-12 on page 8-23

RB2-1825-000CN

Leaf Spring

Table 8-7 on page 8-14

RB2-1856-000CN

Toner Cartridge Engagement Arm

Table 8-17 on page 8-33

RB2-1886-000CN

Paper Feed Shaft

Table 8-13 on page 8-25

RB2-1887-000CN

Large Feed Belt

Table 8-13 on page 8-25

RB2-1888-000CN

Small Paper Feed Belts

Table 8-13 on page 8-25

RB2-1903-000CN

Transfer Roller Bushing (right)

Table 8-13 on page 8-25

RB2-1904-000CN

Transfer Roller Bushing (left)

Table 8-13 on page 8-25

RB2-1905-000CN

Transfer Roller Bushing Cover (right)

Table 8-13 on page 8-25

RB2-1906-000CN

Cleaning Brush

Table 8-6 on page 8-12

RB2-1970-000CN

Paper Guide

Table 8-5 on page 8-10

RB2-1975-000CN

Right Latch Plate

Table 8-5 on page 8-10

RB2-1976-000CN

Left Latch Plate

Table 8-5 on page 8-10

RB2-1977-000CN

Cover Support Strap

Table 8-5 on page 8-10

RB2-1978-000CN

Face Up Deflector

Table 8-5 on page 8-10

RB2-1980-000CN

Face Down Bin Full Sensor Lever

Table 8-11 on page 8-22

RB2-1981-000CN

Static Charge Eliminator

Table 8-11 on page 8-22

RB2-1984-000CN

Delivery Roller

Table 8-11 on page 8-22

RB2-1985-000CN

Lower Delivery Roller

Table 8-7 on page 8-14

RB2-1986-000CN

Right Bushing

Table 8-11 on page 8-22

RB2-1987-000CN

Left Bushing

Table 8-11 on page 8-22

RB2-1988-000CN

Right Bushing Lower Delivery Roller

Table 8-7 on page 8-14

8-48 Parts and Diagrams

EN

Part Number

Description

Table Number and Page

RB2-1989-000CN

Left Bushing Lower Delivery Roller

Table 8-7 on page 8-14

RB2-1990-000CN

Grounding Plate

Table 8-7 on page 8-14

RB2-1991-000CN

Right Latch Block

Table 8-5 on page 8-10

RB2-1992-000CN

Left Latch Block

Table 8-5 on page 8-10

RB2-1996-000CN

Face Down Guide Roller

Table 8-9 on page 8-19

RB2-1997-000CN

Roller Holder

Table 8-9 on page 8-19

RB2-2020-000CN

Tray Extension

Table 8-16 on page 8-31

RB2-2037-000CN

Tray Cover, 250-sheet Feeder

Table 8-16 on page 8-31

RB2-2042-000CN

Universal Tray Extension Lock

Table 8-16 on page 8-31

RB2-2068-000CN

Roller Mount 1

Table 8-9 on page 8-19

RB2-3211-000CN

Right Mount, 500-sheet Feeder

Table 8-22 on page 8-39

RB2-3213-000CN

Inner Cover, 500-sheet Feeder

Table 8-22 on page 8-39

RB2-3235-000CN

Front Cover, 500-sheet Feeder

Table 8-22 on page 8-39

RB2-3236-000CN

Right Auxiliary Cover, 500-sheet Feeder

Table 8-22 on page 8-39

RB2-3237-000CN

Left Auxiliary Cover, 500-sheet Feeder Table 8-22 on page 8-39

RB2-3238-000CN

Right Cover, 500-sheet Feeder

Table 8-22 on page 8-39

RB2-3239-000CN

Left Cover, 500-sheet Feeder

Table 8-22 on page 8-39

RB2-3247-000CN

Tray Cover, 500-sheet Feeder

Table 8-22 on page 8-39

RB2-3262-000CN

Return Cover, 500-sheet Feeder

Figure 6-70 on page 6-81

RB2-3284-000CN

Leaf Spring, 500-sheet Feeder

Table 8-22 on page 8-39

RB2-3286-000CN

Leaf Spring, 500-sheet Feeder

Table 8-22 on page 8-39

RF5-2397-000CN

Tray 2 Rail Left

Table 8-8 on page 8-17

RF5-2398-000CN

Tray 2 Rail Right

Table 8-8 on page 8-17

RF5-2399-000CN

Pad Assembly

Table 8-9 on page 8-19

RF5-2415-000CN

Delivery Guide

Table 8-11 on page 8-22

RF5-2418-000CN

Screw, with Spring

Table 8-2 on page 8-6

RF5-2632-000CN

Tension Spring, 500-sheet Feeder

Table 8-23 on page 8-41

RF5-2633-000CN

Tray Sensor Assembly, 500-sheet Feeder

Table 8-23 on page 8-41

RF5-2635-000CN

Paper Arm

Table 8-23 on page 8-41

RF5-2636-000CN

Pickup Roller 500-sheet Feeder

Table 8-23 on page 8-41

RF5-3585-000CN

Separation Pad/Spring

Table 8-16 on page 8-31

RF5-2634-000CN

Feed Roller, 500-sheet Feeder

Table 8-23 on page 8-41

RG5-2648-000CN

Upper Delivery Roller Assembly

Figure 8-8 on page 8-22

RG5-3517-000CN (110V) RH2-5337-000CN (220V)

DC Controller with Ribbon Cable

Figure 8-16 on page 8-35

RG5-3517-000CN

DC Controller

Table 8-19 on page 8-35

EN

Illustrations and Parts Lists 8-49

Part Number

Description

Table Number and Page

RG5-3519-000CN

Tray 1 Pickup Roller Assembly

Table 8-8 on page 8-17

RG5-3520-000CN

Tray 1 Paper Guide Plate Assembly

Table 8-7 on page 8-14

RG5-3521-000CN

Paper Pickup Roller Assembly (Tray 2) Table 8-12 on page 8-23

RG5-3522-000CN

Paper Feed Roller Assembly

RG5-3523-000CN

Sensor Cable

Table 8-14 on page 8-27

RG5-3524-000CN

Registration Roller Assembly

Table 8-15 on page 8-29

RG5-3525-000CN

Transfer Guide Assembly

Table 8-9 on page 8-19

RG5-3526-000CN

Paper Feed Belt Assembly

Table 8-13 on page 8-25

RG5-3528-000CN

Fuser (100 - 120 V)

Table 8-21 on page 8-37

RG5-3529-000CN

Fuser (220 - 240 V)

Table 8-21 on page 8-37

RG5-3542-000CN

Upper Delivery Assembly

Table 8-11 on page 8-22

RG5-3543-000CN

Main Gear Assembly

Table 8-17 on page 8-33

RG5-3544-000CN

Pickup Gear Assembly

Table 8-18 on page 8-34

RG5-3545-000CN

Power Inlet Assembly

Table 8-8 on page 8-17

RG5-3547-000CN

Front Inner Cover Assembly

Table 8-5 on page 8-10

RG5-3548-000CN

Tray 1 Paper Guide

Table 8-5 on page 8-10

RG5-3549-000CN

Front Cover Assembly

Table 8-5 on page 8-10

RG5-3550-000CN

Left Side Cover Assembly

Table 8-5 on page 8-10

RG5-3551-000CN

Rear Cover Assembly

Table 8-5 on page 8-10

RG5-3552-000CN

Face Up Tray Assembly

Table 8-5 on page 8-10

RG5-3553-000CN

Rear Door Sensor Assembly

Table 8-7 on page 8-14

RG5-3554-000CN

Cable, Paper Sensor

Figure 8-4 on page 8-14

RG5-3556-000CN

Toner Cartridge Door Assembly

Table 8-6 on page 8-12

RG5-3557-000CN

Cable, Display, Accessory Power, Photo Sensor

Figure 8-4 on page 8-14

RG5-3558-000CN

Cable, Paper Sensor

Figure 8-4 on page 8-14

RG5-3560-000CN

Paper Handling PCA

Table 8-19 on page 8-35

RG5-3561-000CN

Cable (Fuser AC)

Table 8-10 on page 8-21

RG5-3562-000CN

Cable (Scanner)

Table 8-10 on page 8-21

RG5-3579-000CN

Transfer Roller Assembly

Table 8-10 on page 8-21

RG5-3585-000CN

Tray 1 Separation Pad with Spring

Table 8-7 on page 8-14

RG5-3603-000CN

Laser Scanner Assembly

Table 8-10 on page 8-21

RG5-3604-000CN

Control Panel Assembly

Table 8-6 on page 8-12

RG5-4180-000CN

Left Frame Assembly

Table 8-22 on page 8-39

RG5-4211-000CN

Feeder Controller PCA Assembly, 500-sheet Feeder

Table 8-23 on page 8-41

RG5-4213-000CN

Upper Contact Cable, 500-sheet Feeder

Table 8-23 on page 8-41

RH2-5337-000CN

Flat Cable

Table 8-20 on page 8-36

8-50 Parts and Diagrams

Table 8-14 on page 8-27

EN

Part Number

Description

Table Number and Page

RH2-5338-000CN

Cable, Ribbon, from Paper PCA to Controller

Figure 8-4 on page 8-14

RH3-2195-000CN

Power Supply (100 - 120 V)

Table 8-19 on page 8-35

RH3-2196-000CN

Power Supply (220 - 240 V)

Table 8-19 on page 8-35

RH7-1354-000CN

Fan

Table 8-8 on page 8-17

RH7-1356-000CN

Main Motor

Table 8-17 on page 8-33

RH7-5192-000CN

Paper Feed Clutch

Table 8-7 on page 8-14

RH7-5193-000CN

Pickup Solenoid

Table 8-18, on page 8-36

RH7-5195-000CN

Paper Pick Up Solenoid

Table 8-7 on page 8-14

RS5-0695-000CN

Tray 2 Shaft Gear

Table 8-8 on page 8-17

RS5-1392-000CN

Tray 1 and 2 Pickup Shaft Left Bushing

Table 8-8 on page 8-17

RS5-2225-020CN

Roller Spring

Table 8-9, on page 8-21

RS5-2431-000CN

Transfer Roller Spring (left)

Table 8-13 on page 8-25

RS5-2434-000CN

Spring

Table 8-8 on page 8-17

RS5-2952-000CN

Latch Plate Springs

Table 8-5 on page 8-10

RS6-0351-000CN

Paper Feed Gear

Table 8-13 on page 8-25

RS6-0352-000CN

Paper Feed Gear

Table 8-13 on page 8-25

RS6-0357-000CN

Lower Delivery Shaft Gear

Table 8-7 on page 8-14

RS6-0367-000CN

Delivery Roller Gear

Table 8-11 on page 8-22

WG8-5362-000CN

Photo Sensor

Table 8-14 on page 8-27

WS6-5092-000CN

Power Connector

Table 8-7 on page 8-14

XA9-0265-000CN

Screw, M4x6 W/Washer

Table 8-2 on page 8-6

XA9-0267-000CN

Screw, M3x6 TP

Table 8-2 on page 8-6

XA9-0815-000CN

Screw, M3x4 TP

Table 8-2 on page 8-6

XA9-0838-000CN

Screw, M4x16 W/Washer

Table 8-2 on page 8-6

XA9-0974-000CN

Screw, Long DC Controller Screws (M3x25)

Table 8-2 on page 8-6

XB1-2300-607CN

M3x6 Screw, Mach., Truss Head

Table 8-8 on page 8-17

XB2-6400-607CN

Screw, M4x6 Screw w/Washer

Table 8-2 on page 8-6

XB4-2300-407CN

Screw, Mach., Truss Head, M4x10

Table 8-22 on page 8-39

XB4-7300-807CN

M3x8 Screw, Tapping, Truss Head

Table 8-23 on page 8-41

XB4-7400-807CN

Screw, M4x8 Truss Head Tapping

Table 8-2 on page 8-6

XB4-7401-007CN

Screw, M4x10 Pan Head Tapping

Table 8-2 on page 8-6

XB6-7300-807CN

Screw, M3x8 TP Screw

Table 8-2 on page 8-6

XD2-1100-322CN

E Ring

Table 8-2 on page 8-6

EN

Illustrations and Parts Lists 8-51

8-52 Parts and Diagrams

EN

Index Numerics

D

500-sheet Feeder PCA, removing and replacing 681 500-sheet Tray, disassembly 6-74

DC Controller Board, removing and replacing 6-47 Delivery Roller Removal, removing and replacing 668 diagrams reference 7-80 DIMM slots 5-16 documentation 2-4 drives laser 5-8 scanner 5-8 D-roller, removing and replacing 6-79 drum cleaning 5-22 conditioning 5-23 Duplexer 5-38 duplexer paper jam 5-44 refeed system 5-38 reversing system 5-38

A AC/DC power distribution 5-3 accessories 8-4 assemblies, removing and replacing 6-27

C cables, replacement 8-6 card stock 1-20 CFC usage 1-26 cleaning accessories 4-2 paper path 4-4 printer 4-2 spilled toner 4-4 using cleaning page 4-4 clutches 5-9, 5-30 component locations 7-80 Configuration menu 3-17 configuration page 7-46 control panel 3-2, 5-17 changing settings 3-5 defaults 3-4 keys 3-2, 3-3 layout 3-2 lights 3-2 printing Menu Map 3-5 settings 3-4 Control Panel Overlay, removing and replacing 6-15 Control Panel, removing and replacing 6-15 covers 6-10 CPU 5-14 Create Cleaning Page message 4-4

E EconoMode 5-13 EIO menu 3-27 electrical specifications 1-6 Energy Star 1-26 Engine Controller Board inputs and outputs 7-107 engine controller subsystem 5-7 engine test 7-9 envelopes 1-19 environmental product stewardship 1-26 Event Log 7-12

F Fan, removing and replacing 6-40 Feed Roller, removing and replacing 6-79 Formatter Assembly, removing and replacing 6-41 Formatter system 5-12 Front Cover, removing and replacing 6-18 Fuser Mode setting 5-28 Fuser, removing and replacing 6-30 fusing temperature, variable 5-28

G Gear Assembly, removing and replacing 6-81

EN

Index 1

H

P

heavy paper 1-20

page count 3-31 page protect 5-16 paper heavy 1-20 motion control 5-9 specifications 1-11 Paper Feed Belt Assembly, removing and replacing 6-51 Paper Feed Roller Assembly, removing and replacing 6-44 Paper Feed System 5-29 Paper Guide, removing and replacing 6-59 Paper Handling menu 3-7 Paper Handling PCA, removing and replacing 6-31 paper jam 5-37 duplexer 5-44 paper path cleaning 4-4 troubleshooting 7-41 Paper Path Detect Sensor, removing and replacing 6-60 Paper Size Spring Assembly, removing and replacing 6-78 paper specifications card stock 1-20 envelopes 1-19 guidelines for using paper 1-15 heavy paper 1-20 labels 1-18 supported types 1-14 transparencies 1-18 vellum 1-18 weight equivalence 1-17 parts 2-3 parts lists alphabetical 8-39 how to use 8-1, 8-2 numerical 8-44 photosensitive drum 5-20 Pickup Gear Assembly, removing and replacing 637 Power Connection, removing and replacing 6-63 Power Connector, removing and replacing 6-82 power distribution, high voltage 5-6 Power Inlet Assembly, removing and replacing 6-73 power on troubleshooting 7-7 power supply system 5-3 AC/DC distribution 5-3 Power Supply, removing and replacing 6-47 PowerSave mode 1-26 preventative maintenance 4-5

I I/O menu 3-24 image developing 5-25 transferring 5-26 writing 5-24 Image Formation System 5-18 photosensitive drum 5-21 image quality 7-49 Information menu 3-6 input/output 5-14

L labels 1-18 laser drive 5-8 Laser Scanner Assembly, removing and replacing 6-70 Left Corner Cover, removing and replacing 6-26 Left Front Corner Cover, removing and replacing 677

M Main Gear Assembly, removing and replacing 6-35 Main Motor, removing and replacing 6-71 maintenance 4-1 maintenance count 3-31 memory checking installation 6-5 printer 5-15 Random Access Memory (RAM) 5-15 upgrade 6-2 Memory Enhancement technology (MEt) 5-16 menu map 7-44 model numbers 1-5 motors 5-10

N NVRAM, clearing 3-36

O Optional 250-sheet Tray 5-35 Optional 500-sheet Tray 5-35 ordering information 2-3 phone numbers 2-5 overcurrent overvoltage protection 5-5 ozone production 1-26

Index 2

EN

Print Quality menu 3-10 printer features 1-2 messages 7-16 model numbers 1-5 serial numbers 1-5 subsystems 5-2 testing 3-35 weight 1-9 printing engine test 3-35 interface 7-77 operating checks 7-6 Optional 250-sheet Tray 5-35 Optional 500-sheet Tray 5-35 Tray 1 5-31 Tray 2 5-33 Printing menu 3-13 Product Stewardship, power consumption 1-26

R Random Access Memory (RAM) 5-15 Rear Door/Rear Output Bin, removing and replacing 6-10 recycling toner cartridges 2-8 refeed system 5-38 Registration Assembly, removing and replacing 664 regulatory information 1-22– 1-24 removal/replacement strategy 6-7 removing and replacing 6-10 reset maintenance count 3-31 page count 3-31 serial number 3-31 Resets menu 3-29 resetting printer 3-36 clearing NVRAM 3-36 cold reset 3-36 Resolution Enhancement technology (REt) 5-13 reversing system 5-38 Right Corner Cover, removing and replacing 6-26

EN

S safety statements 1-22– 1-24 scanner drive 5-8 sensors 5-9, 5-30, 7-88 Separation Roller, removing and replacing 6-83 sequence of operation 5-45 serial number 3-31 serial numbers 1-5 service mode 3-30 maintenance count 3-31 page count 3-31 serial number 3-31 signals 7-88 site requirements 1-6 electrical specifications 1-6 environmental requirements 1-10 printer weight 1-9 space requirements 1-7 solenoids 5-9 space requirements 1-7 specifications electrical 1-6 paper 1-11 supplies 2-3, 8-4 switches 5-9

T toner cleaning spilled 4-4 consumption 1-26 toner cartridge 2-8, 5-18, 5-20 detection 5-7 recycling 2-8 refilled 2-8 Toner Cartridge Door Assembly, removing and replacing 6-17 Toner Cartridge Guides, removing and replacing 672 tools 6-7 Top Cover, removing and replacing 6-12 training media 2-4 Transfer Roller Assembly, removing and replacing 6-28 transparencies 1-18 Tray 1 5-31 Tray 1 Inner Cover, removing and replacing 6-24 Tray 1 Lift Plate, removing and replacing 6-57 Tray 1 Pickup Solenoid, removing and replacing 639 Tray 1 Roller, removing and replacing 6-42 Tray 1 Separation Pad, removing and replacing 6-58 Tray 1 Shaft, removing and replacing 6-53 Tray 1, removing and replacing 6-18 Tray 2 5-33 Tray 2 Roller, removing and replacing 6-43 Tray 2 Shaft, removing and replacing 6-55

Index 3

Tray Indicator Assembly, removing and replacing 676 troubleshooting 7-1 configuration page 7-46 display 7-11 engine test 7-9 Event Log 7-12 flowchart 7-4 general paper path 7-41 image quality 7-49 image system 7-75 information pages 7-44 interface 7-77 menu map 7-44 power on 7-7 preliminary operating checks 7-6 printer messages 7-16 printing system 7-6 troubleshooting process 7-2

U Upper Delivery Assembly, removing and replacing 6-66

V variable fusing temperature 5-28 vellum 1-18

W warranty statement 2-9

Index 4

EN