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2 Flex the sheets of paper back and forth to loosen them, and then fan them. Do not fold or crease the paper. Straighten

the edges on a level surface.

3 Reload paper into the multipurpose feeder.

7527

Diagnostic information

69

Table of Contents

Default Chapter1
- Service Manual1
Product Information2
Edition Notice2
- December2
- Table of Contents3
Notices and Safety Information11
- Laser Notices11
- Safety Information14
Preface19
- Service Manual Conventions19
- Change History19
General Information23
- Media Guidelines23
- Data Security Notice32
- Tools Required for Service33
Diagnostic Information35
- Troubleshooting Overview35
- Fixing Print Quality Issues37
- Paper Jams47
- Understanding Printer Messages76
  - Understanding the Printer Messages76
- Printer Hardware Errors87
- Adf/Scanner Hardware Errors140
- Input Option Hardware Errors161
Service Menus185
- Understanding the Printer Control Panel185
- Updating the Printer Firmware189
- Menus List190
- Diagnostics Menu192
- Configuration Menu216
- Entering Invalid Engine Mode224
- Entering Recovery Mode224
- Accessing the Network SE Menu224
- Service Engineer Menu224
Repair Information227
- Removal Precautions227
- Removal Procedures246
- Left Side Removals246
- Right Side Removals256
- Front Removals273
- Bottom Removals290
- Rear Side Removals307
- Top Side Removals312
- Adf/Scanner Removals326
- Options Removals339
Component Locations345
- Controller Board345
Maintenance353
- Inspection Guide353
- Scheduled Maintenance354
  - Maintenance Kits354
- Preventive Maintenance355
  - Device-Specific Preventive Maintenance355
- Lubrication Specification355
- Cleaning the Printer356
  - Cleaning the Scanner Glass357
  - Cleaning the Printhead Lenses358
Parts Catalog360
- Legend360
- Assembly 1: Covers361
- Assembly 2: Scanner363
- Assembly 3: Paperpath365
- Assembly 4: Operator Panels369
- Assembly 5: Electronics373
- Assembly 6: Cables and Sensors377
- Assembly 7: Media Drawers and Trays379
- Assembly 8: Options and Miscellaneous381
Appendix A: Printer Specifications383
- Power Specifications383
- Electrical Specifications383
- Operating Clearances384
- Acoustics385
- Environment386
- Processor386
Appendix B: Options and Features387
- Available Internal Options387
- Media Handling Options387
- Option Configurations388
- Supported Configurations389
Appendix C: Theory of Operation391
- Paper Path and Transport Components391
- Print Engine Theory394
  - Electrophotographic Process (EP Process)394
  - Electrophotographic Process Basics394
- ADF Theory398
  - ADF Theory of Operation398
- Color Theory400
- What Is Manual Color Correction401
Appendix D: Acronyms405
- Acronyms405
Appendix E: Screw and Retainer Identification Table407
- Screw and Retainer Identification Table407
Index410
Part Number Index417
Part Name Index423