Lexmark T640 - Assembly 11: Drives-Main Drive and Developer Drive; Assembly 12: Hot Roll Fuser

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7-24 Service Manual

4061-xx0

Assembly 12: Hot roll fuser

Table of Contents

Default Chapter3
- Table of Contents3
Laser Notices11
Safety Information17
Preface20
- Definitions20
General Information21
- Maintenance Approach21
- Options22
  - Configured Models23
- Specifications24
- Media Specifications29
- Tools Required40
- Acronyms41
Diagnostic Information43
- Start43
- Power-On Self Test (POST) Sequence46
Symptom Tables47
- Base Printer Symptoms47
- High-Capacity Feeder (2000-Sheet) Symptoms47
- Paper Tray Symptoms48
- Duplex Option Symptoms48
- Envelope Feeder Symptoms48
- Output Expander48
- Staplesmart Finisher49
Messages and Error Codes50
- Service Error Codes50
- User Status Displays73
- User Attendance Messages74
  - User Line 2 Link Messages85
  - Check Device Connection Messages85
- User Attendance Messages-Paper Jams and Paper Handling Errors (2Xx.XX)86
Service Checks114
- 5-Bin Mailbox Service Check114
- 900.XX Error Code Service Check117
- 927.XX Fan Service Check118
  - Main Fan118
  - Cartridge Fan Service Check118
- 950.00 through 950.29 EPROM Mismatch Failure119
- 950.30 through 950.60 EPROM Mismatch Failure120
- Charge Roll Service Check121
- Cover Closed Switch/Cable Service Check122
- Dead Machine Service Check122
- Duplex Option Service Check124
- Envelope Feeder Service Check126
- Fuser Service Checks129
  - 920.XX-Cold Fuser Service Check129
  - 922.XX-Cold Fuser Check131
  - 923.XX-Hot Fuser Service Check132
  - 925.XX-Hot Fuser Service Check133
- Fuser Exit Sensor Service Check134
- Fuser Narrow Media Sensor Service Check135
- Fuser Solenoid Service Check136
- High-Capacity Feeder Input Tray Service Check137
- High-Capacity Output Stacker Service Check142
- Input Sensor Service Check144
- Input Tray(S) Service Check144
- Interconnect Card Service Check146
- Main Drive Service Check147
- Operator Panel Service Check148
  - One or more Operator Panel Buttons Fail148
  - No Buttons Work148
  - Operator Panel Display149
- Options Service Check150
  - Flash Memory Option(S)150
  - DRAM Memory Option(S)150
  - Hard Disk Option150
- Output bin Sensor Standard Tray Service Check151
- Output Expander Service Check152
- Paper Feed Service Check154
- Paper Size Sensing Service Check155
- Parallel Port Service Check158
- Print Quality Service Check158
- Printhead Service Check164
  - Signature Button Assembly Service Check164
  - Staplesmart Finisher Service Check165
  - System Board Service Check168
  - Toner Sensor Service Check169
  - Transfer Roll Service Check170
Diagnostic Aids171
- Accessing Service Menus171
- Diagnostics Mode172
Configuration Menu (CONFIG MENU)195
- Entering Configuration Menu195
- Available Menus195
- Maintenance Page Count (Maint Cnt Value)195
- Maintenance Page Counter Reset (Reset Maint Cnt)196
- Print Quality Pages (Prt Quality196
- Size Sensing197
- Panel Menus197
- PPDS Emulation197
- Download Emuls197
- Demo Mode197
- Factory Defaults198
- Energy Conserve198
- Event Log198
- Paper Prompts198
- Env Prompts198
- Jobs on Disk198
- Disk Encryption198
- Font Sharpening199
- LCD Brightness199
- LCD Contrast199
- Exit Config Menu199
Additional Useful Menu Locations199
- Hex Trace199
- Menu Settings Page200
- Printing Menu Settings Page200
Theory201
- Autocompensator Operation201
- Autoconnect System, Paper Tray Options, Envelope Feeder-Electrical202
Print Quality Troubleshooting203
Paper Feed Jams207
- Access Doors and Trays207
- Clearing Printer Jams207
Repair Information221
- Handling Esd-Sensitive Parts221
- Adjustment Procedures222
- Removal Procedures225
Connections307
- Fuser Board307
- High-Capacity Output Stacker Board308
- High Voltage Power Supply309
- Interconnect Card309
- Low Voltage Power Supply310
- Output Expander Control Board311
S315
Safety Inspection Guide315
Preventive Maintenance315
- Safety Inspection Guide315
Lubrication Specifications315
- Scheduled Maintenance315
- Maintenance Kit315
- Parts Catalog317
How to Use this Parts Catalog317
Assembly 1: Covers318
Assembly 2: Frame320
Assembly 3: Frame322
Assembly 4: Frame324
Assembly 5: Printhead326
- Assembly 6: Paper Feed—Autocompensator328
- Assembly 7: Paper Feed—Multipurpose Feeder330
- Assembly 8: Paper Feed—Alignment332
Assembly 8: Paper Feed-Alignment334
Assembly 7: Paper Feed-Multipurpose Feeder334
Assembly 6: Paper Feed-Autocompensator334
Assembly 9: Integrated 250-Sheet Paper Tray334
Assembly 10: Integrated 500-Sheet Paper Tray336
- Assembly 11: Drives—Main Drive and Developer Drive338
Assembly 11: Drives-Main Drive and Developer Drive340
Assembly 12: Hot Roll Fuser340
Assembly 13: Transfer/Charging342
- Assembly 14: Electronics—Power Supplies344
- Assembly 15: Electronics—Card Assemblies346
- Assembly 16: Electronics—Shields348
- Assembly 16: Electronics-Shields350
- Assembly 17: Cabling Diagrams350
- Assembly 18: Cabling Diagrams351
- Assembly 19: Cabling Diagrams352
- Assembly 20: Cabling Diagrams354
- Assembly 21: Cabling Diagrams356
- Assembly 22: Optional 250-Sheet Paper Drawer358
- Assembly 23: Optional 250-Sheet Paper Tray359
- Assembly 24: Optional 500-Sheet Paper Drawer360
- Assembly 25: Optional 500-Sheet Paper Tray361
- Assembly 26: Duplex Option362
- Assembly 27: Envelope Feeder363
- Assembly 28: Output Expander364
- Assembly 29: Output Expander365
- Assembly 30: High-Capacity Output Expander366
- Assembly 31: High-Capacity Output Expander367
- Assembly 32: High-Capacity Output Expander368
- Assembly 33: 5-Bin Mailbox370
- Assembly 34: 5-Bin Mailbox372
- Assembly 35: High-Capacity Feeder374
- Assembly 36: High-Capacity Feeder376
- Assembly 37: High-Capacity Feeder378
- Assembly 38: High-Capacity Feeder379
  - Assembly 39: Kiosk—Vertical and Horizontal Paper Adapters380
- Assembly 39: Kiosk-Vertical and Horizontal Paper Adapters381
- Assembly 40: Staplesmart Finisher I381
- Assembly 41: Staplesmart Finisher382
- Assembly 42: Staplesmart Finisher383
- Assembly 43: Staplesmart Finisher384
- Assembly 44: Options385
Appendix A-Options and Features387
Appendix A-Options and Features387
- Installing Input Options387
- Installing Memory or Option Cards390
- Accessing the Printer System Board391
- Removing or Installing a Memory Card393
- Removing or Installing a Flash Memory or Firmware Card394
- Installing an Option Card396
- Replacing the Shield397
- Printing and Using Features397

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