Name: Lexmark T65 Series
Brand: Lexmark
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4-116 Service Manual

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Operator panel cover latch assembly removal (models X651, X652, X654, and X656)

1. Lift the operator panel cover assembly.

2. Remove the ten screws (A) securing the operator panel cover latch assembly to the operator panel cover

assembly.

3. Remove the operator panel cover latch assembly.

Default Chapter3
- Table of Contents3
Notices and Safety Information15
Table of Contents15
- Laser Notice15
- Lithium Warning21
- Safety Information21
  - Go Back24
Preface24
- Navigation Buttons24
- Change History25
- Conventions26
General Information27
- Maintenance Approach27
- Printer Overview28
  - Printer Configurations28
    - Basic Models28
- Options29
- Tools Required for Service33
- Acronyms34
Diagnostic Information35
- Start35
- Confirm the Installation Status36
- Power-On Reset Sequence36
  - Entering Diagnostics Menu36
- User Attendance Messages37
- Error Code Table45
- Service Checks142
  - Sensor (Input) Service Check142
  - Sensor (Fuser Output) Service Check142
  - Sensor (Narrow Media) Service Check143
  - Sensor (Duplex Input) Service Check143
  - Sensor (Duplex Input) Service Check (External Duplex Only)144
  - Sensor (Duplex Exit) Service Check (External Duplex Only)144
  - Sensor (Pass Through) Service Check144
  - Sensor (Envelope Feeder Empty) Service Check145
  - Sensor (ADF Top Door Interlock) Service Check145
  - Switch (ADF Closed Interlock) Jam Service Check146
  - Sensor (ADF Sheet Through) Static Jam Service Check147
  - Sensor (ADF Sheet Through) Late Jam Service Check 290.01148
  - Sensor (ADF 1St Scan) Late Jam Service Check149
  - Sensor (ADF Sheet Through) Lingering Jam Service Check150
  - Sensor (1St Scan) Static Jam Service Check152
  - Sensor (2Nd Scan) Static Jam Service Check153
  - Sensor (2Nd Scan) Lingering Jam Service Check153
  - Sensor (ADF Media Exit) Late Jam Service Check154
  - ADF Top Door Open Jam Service Check156
- Media Missing Jam Service Check156
  - Sensor (Adf Media Exit) Static Jam Service Check157
- Sensor (ADF Media Exit) Late Jam Service Check160
- Sensor (ADF Media Exit) Static Jam Service Check160
- Sensor (Adf Media Exit) Lingering Jam Service Check160
- Sensor (Input) Late Jam Service Check162
- Sensor (Input) Lingering Jam Service Check164
- Sensor (Input) Early Jam Service Check165
- Sensor (Input) Static Jam Service Check166
- Sensor (Fuser Output) Late Jam Service Check167
- Sensor (Fuser Output) Lingering Jam Service Check168
- Sensor (Fuser Output) Static Jam Service Check170
- Sensor (Narrow Media) Late Jam Service Check170
- Sensor (Narrow Media) Static Jam Service Check171
  - Sensor (Duplex Input) Late Jam Service Check172
- Sensor (Duplex Input) Lingering Jam Service Check174
- Sensor (Duplex Input) Static Jam Service Check175
- Sensor (Pass Through) Late Jam Service Check176
- Sensor (Pass Through) Lingering Jam Service Check177
- Sensor (Pass Through) Static Jam Service Check178
- Sensor (Stapler Pass Through) Late Jam Service Check179
- Sensor (Stapler Pass Through) Lingering Jam Service Check179
- Sensor (Stapler Pass Through) Static Jam Service Check180
- Sensor (Output Pass Through) Late Jam Service Check180
- Sensor (Output Pass Through) Lingering Jam Service Check181
- Sensor (Output Pass Through) Static Jam Service Check181
- Sensor (Mailbox Empty) Late Jam Service Check182
- Sensor (Mailbox Empty) Lingering Jam Service Check182
- Sensor (Mailbox Empty) Static Jam Service Check183
- Sensor (Toner Empty) Service Check184
  - Sensor Late Jam Service Check184
- Sensor (ADF 2Nd Scan) Late Jam Service Check185
- Sensor (Scanner HP) Service Check185
- System Software Error (900.XX) Service Check185
- Nvram Mismatch Failure (950.00 through 950.29) Service Check188
- Printer Related Troubleshooting189
  - Image Quality Trouble189
Image Quality190
- Faint Print (Low Contrast)190
- Blank Print (no Print)192
- Solid Black194
- Vertical Lines and Bands (Process Direction)195
- Horizontal White Stripes or Bands (Side to Side Direction)196
- Vertical Stripes (Process Direction)197
- Horizontal Stripes (Side to Side Direction)198
- Partial Lack200
- After Image203
- Background (Fog)204
- Media Damage206
- No Fuse208
- Adf & Scanner Related Troubleshooting209
- ADF & Scanner Related Troubleshooting210
Diagnostic Aids219
- Understanding the Printer Control Panel219
- Understanding the Home Screen220
- Using the Touch-Screen Buttons222
  - Sample Touch Screen222
  - Other Touch-Screen Buttons223
- Accessing Service Menus225
  - Available Tests226
- Diagnostics Menu226
- Input Tray Tests237
- Output bin Tests238
  - Base Sensor Test238
    - Feed Tests (Output Bins)238
Q239
- Device Tests239
  - Quick Disk Test239
  - Disk Test/Clean239
- Printer Setup240
- Ep Setup242
Reports243
Event Log243
- Charge Roll243
- Gap Adjust243
- Auto Dark Adjust243
- Display Log243
- Clear Log244
Scanner Tests245
- Back Side Scan Uniformity245
- Asic Test245
- Feed Test245
- Sensor Tests245
Configuration Menu (CONFIG MENU)246
Entering Configuration Menu246
Available Menus246
Maintenance Counter Value247
Reset Maintenance Counter247
USB Scan to Local248
Print Quality Pages248
Reports249
Size Sensing249
Panel Menus250
Ppds Emulation250
Factory Defaults251
Energy Conserve251
Min Copy Memory252
Numpad Job Assist252
Format Fax Storage252
Fax Storage Location252
Adf Edge Erase252
Fb Edge Erase253
Scanner Manual Registration253
Disable Scanner254
Paper Prompts254
Envelope Prompts254
Action for Prompts255
Jobs on Disk256
Disk Encryption256
R257
Wipe Disk257
Font Sharpening257
- Require Standby257
Wiper Message258
LES Applications258
Require Standby258
Key Repeat Initial Delay258
Key Repeat Rate258
- Wiper Message258
Clear Custom Status258
Exit Configuration Menu259
- Printer Theory261
- Multi-Purpose Feeder (MPF)267
- Registration269
- Supported Paper Sizes, Types, and Weights269
  - Alignment Assembly269
Fax Card Assembly Removal270
Hard Drive Cooling Fan Removal270
Transfer Roll Assembly270
- Heat Roll273
- Fuser Components274
  - Thermal Cutoff274
  - Sensor (Narrow Media)274
- Fuser Unit Assembly (Type 1 and Type 2)275
  - Type 1 Fuser Unit Assembly275
  - Type 2 Fuser Unit Assembly275
- Drive276
- Exit276
- Duplex Assembly Removal278
- Media Turn Guide Removal278
- Duplex Guide Assembly, Front Removal278
- Fuser Access Door Assembly Removal278
- Fuser Control279
- Printhead Control279
- Control279
Scanner Cooling Fan287
- Setting a Document287
- Preparation for Feed287
- Simplex and Duplex Document Feed288
- Duplex Document288
- Names and Functions of Components289
Sensor (Adf Media Exit)290
- Adf Feed Motor Assembly290
- Adf Transport Motor290
- Adf Pick Solenoid Assembly290
- High Capacity Input Tray (Hcit) Tray Assembly292
- 250 Sheet/550-Sheet Tray Assembly293
- Model X658 Paper Path Rolls and Sensors297
  - Rear Media Guide297
  - Side Guide297
- Media Tray Assembly298
Duplex300
- Sensor (Duplex Input)300
- Duplex Drive Motor Assembly300
Paper Jams301
- Understanding Jam Numbers and Locations301
  - And 203 Paper Jams301
  - X Staple Jams307
- Adjusting Skew311
- Flatbed Scanner Skew Adjustment312
  - Adf Skew Adjustment (Via Adf Document Tray)312
- Media Squareness Check316
- Print Skew Correction Procedure319
- Copy Skew Correction Procedure321
- Security Reset Jumper323
- Printer Skew Specifications325
  - Abnormal Skew Printer Correction325
  - Print Registration326
  - Print Position Error326
- Handling Esd-Sensitive Parts327
- Adjustments328
  - Polygon Printhead Mechanical Registration Adjustment328
  - Fuser Solenoid Adjustment330
  - Gap Adjustment330
- Removal Procedures331
  - Before Starting Service Work331
  - Charge Roll Assembly Removal331
  - Duplex Input Sensor Assembly Removal336
  - Fuser Drive Release Linkage Removal341
  - Fuser Wiper Cover Assembly Removal342
  - Fuser Unit Assembly Removal342
- Option Drive Shaft Removal346
- Inner Deflector Removal346
  - Main Drive Motor Assembly Removal346
  - Alignment Assembly Removal347
- Media out Actuator Removal349
- 550 Sheet Option Drawer Assembly Removal349
- 550 Sheet Pick Arm Bracket Assembly Removal349
- 550 Sheet Bellcrank Recoil Spring Removal349
- Media out Actuator Removal349
  - Media Support Removal349
- Tray Roller Catch Assembly Removal350
  - Mpf Cam Gear Removal350
- MPF Lift Plate Assembly Removal351
  - Mpf Media out Actuator Removal351
Mpf Pick Solenoid Assembly Removal352
Pick Arm Assembly Removal354
Print Cartridge Cooling Fan Removal356
Print Cartridge Clamp Assembly Removal357
Print Cartridge ID Connector Assembly Removal357
Printhead Assembly Removal358
Door Assembly, Rear Removal361
Connection Access Cover, Rear Removal361
Duplex Guide Assembly, Rear Removal361
Cover Assembly, Rear Lower (X654, X656, and X658)363
Redrive Motor Assembly Removal363
Sensor (Media Empty) Removal366
Sensor (Media Low) Removal367
Sensor (Toner Empty) Removal367
Sensor (Input) Removal367
Sensor Shield Assembly Removal368
Standard bin Actuator Assembly Removal368
Sensor (Standard bin Exit) Actuator Removal369
Sensor (Toner Density) Removal369
Switch (Media Size) Assembly Removal370
Lvps Card Assembly Removal371
Access Door Removal373
System Card Assembly Removal373
Hard Drive Removal376
Transfer Roll Bracket Assembly, Left Removal379
Transfer Roll Bracket Assembly, Right Removal380
Output Cover Assembly Removal (Model X658)381
Output Cover Assembly Removal (Model X651, X652, X654 and X656)381
Fuser Access Assembly Removal381
MPF Tray Door Assembly Removal (Model X658)381
Redrive Assembly Removal381
Transfer Deflector Removal382
Redrive Assembly Removal382
Adf Feed / Pick Roll Assembly Removal382
ADF Separator Torque Limiter Assembly Removal385
ADF Separator Roll Removal385
Adf Cover, Front Removal385
ADF Cover, Rear Removal386
Adf Document Tray Assembly Removal386
Adf Top Door Assembly Removal387
Adf Controller Card Removal388
Adf Platen Cushion Removal388
ADF Pinch Roll Assembly Removal393
ADF Duplex CCD Assembly Removal (X654, X656, and X658)393
ADF Duplex CCD Scan Glass Assembly Removal (X654, X656, and X658)393
ADF Lower Door Assembly Removal393
Adf Turn Guide Removal393
Adf Media Pinch Pad Assembly Removal396
Sensor (ADF Media Exit) Fan Bracket Assembly Removal (X654, X656, and X658)397
Adf Transport Drive Motor Bracket Assembly W/Cable Removal397
ADF Pick Roll Position Cam Assembly Removal401
ADF Feed Drive Motor Assembly Removal401
Adf Solenoid Assembly Removal401
Sensor (ADF Lower Door Interlock) Removal402
Sensor (ADF Top Door Interlock) Removal402
Sensor (Adf 2Nd Scan) Removal402
- Sensor (Adf Sheet Through) Removal403
Switch (Adf Closed Interlock) Removal405
- Adf Unit Assembly Removal (Model X)406
ADF Left Hinge Removal409
ADF Unit Assembly Removal (Model X658)409
ADF Unit Assembly Removal (Models X651, X652, X654 and X656)409
Adf Right Hinge Removal409
Cover, Right Rear Corner Removal (Model X658)412
Cover, Left Rear Corner Removal (Model X658)412
Sensor (Standard bin Exit) Actuator Assembly Removal412
- Sensor (Adf Media Exit) Bracket Assembly Removal (X)413
Scanner CCD Assembly Removal414
- Scanner Unit Assembly Removal (Models X651, X652, X654 and X)415
- Scanner Unit Assembly Removal (Model X)417
- Mpf Tray Door Assembly Removal (Models X651, X652, X654, and X)419
- Output Cover Assembly Removal (Model X)424
- Laser Cover Removal (Model X)427
- Laser Cover Removal (Models X651, X652, X654, and X)429
- Mpf Media Guide Assembly Removal (Model X)431
- Operator Panel Assembly Removal (Model X)432
- Side Cover, Left Removal (Models X651, X652, X654, and X)447
Scanner Controller Card Assembly Removal (Models X651, X652, X654 and X656)456
Scanner Controller Card Assembly Removal (Model X658)456
Scanner Support Cover, Right Removal (Model X658)456
Scanner Support Inner Cover, Right Removal (Model X658)456
Scanner Cover, Rear Removal456
- Scanner Cover, Right Removal (Model X)459
- Scanner Platen Glass Cover Assembly Removal (Model X)462
- Scanner Platen Glass Cover Assembly Removal (Models X651, X652, X654 and X)463
Scanner Support Platform Removal (Models X651, X652, X654, and X656)466
Scanner Platen Glass Cover Assembly Removal (Models X651, X652, X654 and X656)466
Scanner Platen Glass Cover Assembly Removal (Model X658)466
Scanner Cover, Front Removal (Model X658)466
Carriage Belt Tensioner Assembly Removal466
Carriage Drive Motor Assembly with Cable Removal467
Carriage Belt Removal468
Scanner / Adf Duplex CCD Exposure Lamp Removal469
Scanner Interface Card Assembly Removal470
Scanner Cooling Fan Removal471
- Scanner Support Inner Cover, Left Removal (Model X658)475
- Scanner Support Cover, Left Removal (Model X658)475
- Scanner Support Cover, Left Front Removal (Model X658)475
- Sensor (Platen Glass Length) Assembly Removal475
- Sensor (Scanner Hp) Assembly W/Bracket Removal476
Option Removals477
- High Capacity Input Tray (HCIT) Media Tray Assembly Removal479
- LVPS Cooling Fan479
- High Capacity Input Tray (Hcit) Tray Cover, Front Removal479
- High Capacity Input Tray (Hcit) Cover, Rear Removal481
- High Capacity Input Tray (Hcit) Cover, Right Removal483
- High Capacity Input Tray (Hcit) Cover, Left Removal485
- High Capacity Input Tray (Hcit) Anti-Tip Latch Assembly Removal487
- High Capacity Input Tray (Hcit) Drawer Slide Assembly Removal488
- High Capacity Input Tray (Hcit) Tray Lift Drive Motor Assembly Removal489
- High Capacity Input Tray (Hcit) Controller Card Assembly Removal490
- High Capacity Input Tray (Hcit) Media Size Actuator Assembly Removal491
- Sensor (HCIT Tray Raised HP) with Cable Assembly Removal495
- Sensor (Hcit Pass Through) with Cable Removal495
- High Capacity Input Tray (Hcit) Pick Arm Bracket Assembly Removal496
- High Capacity Input Tray (Hcit) Tray Closed Latch with Spring Removal498
- Sheet Media Tray Assembly Removal499
- Tray Roller Catch Assembly Removal509
- Media Tray Catch Spring Removal509
- Media Size Actuator Removal509
- 250 Sheet Controller Card Assembly Removal509
- Sheet Option Tray Assembly509
- Media Size Actuator Removal520
- 550 Sheet Controller Card Assembly Removal520
- Sensor (Pass Through) with Cable Removal520
- Lower Interface Cable Assembly Removal520
- Sheet Option Drive Shaft with Spring Removal520
- MFP Stapler Assembly Rear Door Assembly Removal522
- Media Tray Roller Catch Assembly Removal522
- Media Tray Catch Spring Removal522
- Mfp Stapler Assembly Right Cover Removal522
- Mfp Stapler Assembly Left Cover Removal523
- Mfp Stapler Assembly Top Cover Removal524
- Mfp Stapler Assembly Handle Cover Removal525
- Mfp Stapler Assembly Led Sensor Cover Removal526
- Mfp Stapler Assembly Sensor (Finisher Media bin Present) Removal528
- Mfp Stapler Assembly Standard Output bin Led and Led Clear Lens Removal529
- Mfp Stapler Assembly Tamper Drive Belt Removal530
- MFP Stapler Assembly Media Stack Flap and Media Stack Flap Actuator Removal536
  - Mfp Stapler Assembly Sensor (Media Stack) Removal536
- MFP Stapler Assembly Stapler Unit Assembly Removal536
- Stapler/Stacker Controller Card Assembly Removal536
- MFP Stapler Assembly Paddle Drive Motor Assembly Removal536
- MFP Stapler Assembly Sensor (Paddle HP) Removal538
  - Mfp Stapler Assembly Sensor (Stapler Access Door Interlock) Removal538
- MFP Stapler Assembly Sensor (Tamper HP Left and Right) Removal540
  - Mfp Stapler Assembly Sensor (bin Full Send) Removal540
  - Mfp Stapler Assembly Sensor (Media in Stapler) Removal541
- MFP Stapler Assembly Sensor (Media in Stapler) Removal542
  - Mfp Stapler Assembly Sensor (Deflector Hp) Removal542
- 4 Bin Mailbox Assembly Media bin Full Actuator Removal562
- 4 Bin Mailbox Assembly LED Clear Lens Removal562
- 4 Bin Mailbox Assembly Standard Output bin LED Removal562
- 4 Bin Mailbox Assembly Sensor (Mailbox Empty) Removal562
  - Offset Stacker Rear Door Assembly Removal562
  - Offset Stacker Right Cover Removal563
- Offset Stacker Left Cover Removal565
  - Offset Stacker Top Cover Removal565
  - Offset Stacker Handle Cover Removal566
  - Offset Stacker Led Sensor Cover Removal567
  - Offset Stacker Sensor (Finisher Media bin Present) Removal568
  - Offset Stacker Standard Output bin Led and Led Clear Lens Removal569
  - Offset Stacker Tamper Drive Belt Removal570
- Offset Stacker Tamper Drive Motor Assembly Removal572
  - Offset Stacker Media Stack Flap and Media Stack Flap Actuator Removal572
- Offset Stacker Paddle Drive Motor Assembly Removal575
- Stapler/Stacker Controller Card Assembly Removal575
  - Offset Stacker Sensor (Media Stack) Removal575
  - Offset Stacker Sensor (Tamper Hp Left and Right) Removal576
- Offset Stacker Sensor (Tamper HP Left and Right) Removal577
  - Offset Stacker Sensor (bin Full Send) Removal577
  - Offset Stacker Sensor (bin Full Receive) Removal578
  - Offset Stacker Sensor (Deflector Hp) Removal579
Connector Locations581
S583
Safety Inspection Guide583
Lubrication Specifications583
- Maintenance Kit584
- Maintaining the Printer584
- Cleaning the Exterior of the Printer584
- Cleaning the Scanner Glass584
- How to Use this Parts Catalog587

Lexmark T65 Series Service Manual

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Brand	Lexmark
Model	T65 Series
Category	Printer
Language	English