Lexmark MS510 Series - Toner Rubs off; Toner Specks Appear on Prints

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Toner rubs off

Leading edge

Trailing edge

ABC

DEF

Actions Yes No

Step 1

Check if the fuser screws are tightly fastened.

Are they tightly fastened?

Go to step 2. Tighten the screws.

Step 2

a Turn off the printer.

b Remove the rear door and cover.

c Disconnect the fuser cable connected to PCN5 of the power supply.

d Check for approximate correct resistance on the fuser cable:

• 220V fuser—43 ohms

• 110V fuser—10 ohms

• 100V fuser—8 ohms

Is the resistance equal to any of the above values?

Go to step 3. Replace the fuser. See

“Fuser removal” on

page 244.

Step 3

Check the following fuser components for wear or damage:

• Gears

• Exit rollers

• Belt fuser

Are they free of damage?

Replace the power

supply. See “Power

supply removal” on

page 223.

Replace the fuser. See

“Fuser removal” on

page 244.

Toner specks appear on prints

4514-630, -635, -636

Diagnostic information

Main Page

Default Chapter1
- Service Manual1
Product Information2
Edition Notice2
- October2
- Table of Contents3
Notices and Safety Information11
- Laser Notices11
- Safety14
Preface19
- Service Manual Conventions19
General Information21
- Media Guidelines21
S23
- Data Security Notice28
- Tools Required for Service29
Diagnostic Information31
- Troubleshooting Overview31
  - Performing the Initial Troubleshooting Check31
  - Power-On Reset (POR) Sequence31
- Understanding the Printer Messages32
  - Cartridge, Imaging Unit Mismatch [41.Xy]32
  - Cartridge Low [88.Xy]32
  - Cartridge Nearly Low [88.Xy]32
  - Cartridge very Low, [X] Estimated Pages Remain [88.Xy]32
  - Change [Paper Source] to [Custom Type Name] Load [Orientation]33
  - Change [Paper Source] to [Custom String] Load [Paper Orientation]33
  - Change [Paper Source] to [Paper Size] Load [Orientation]33
  - Change [Paper Source] to [Paper Type] [Paper Size] Load [Orientation]33
  - Close Front Door33
  - Complex Page, some Data May Not Have Printed [39]34
  - Configuration Change, some Held Jobs Were Not Restored [57]34
  - Defective Flash Detected [51]34
  - Error Reading USB Drive. Remove USB34
  - Error Reading USB Hub. Remove Hub34
- Imaging Unit Low [84.Xy]34
- Imaging Unit Nearly Low [84.Xy]35
- Imaging Unit very Low, [X] Estimated Pages Remain [84.Xy]35
- Incorrect Paper Size, Open [Paper Source] [34]35
- Insert Tray [X]35
- Insufficient Memory to Support Resource Save Feature [35]35
- Insufficient Memory to Collate Job [37]35
- Insufficient Memory for Flash Memory Defragment Operation [37]36
- Insufficient Memory, some Held Jobs Were Deleted [37]36
- Insufficient Memory, some Held Jobs will Not be Restored [37]36
- Load [Paper Source] with [Custom String] [Paper Orientation]36
- Load [Paper Source] with [Custom Type Name] [Paper Orientation]36
- Load [Paper Source] with [Paper Size] [Paper Orientation]37
- Load [Paper Source] with [Paper Type] [Paper Size] [Paper Orientation]37
- Load Manual Feeder with [Custom Type Name] [Paper Orientation]37
- Load Manual Feeder with [Custom String] [Paper Orientation]37
- Load Manual Feeder with [Paper Size] [Paper Orientation]38
- Load Manual Feeder with [Paper Type] [Paper Size] [Paper Orientation]38
- Maintenance Kit Low [80.Xy]38
- Maintenance Kit Nearly Low [80.Xy]38
- Maintenance Kit very Low, [X] Estimated Pages Remain [80.Xy]38
- Memory Full [38]39
- Network [X] Software Error [54]39
- Non-Lexmark [Supply Type], See User's Guide [33.Xy]39
- Not Enough Free Space in Flash Memory for Resources [52]40
- Printer Had to Restart. Last Job May be Incomplete40
- Reinstall Missing or Unresponsive Cartridge [31.Xy]40
- Reinstall Missing or Unresponsive Imaging Unit [31.Xy]40
- Remove Paper from Standard Output bin40
- Replace Cartridge, 0 Estimated Pages Remain [88.Xy]41
- Replace Cartridge, Printer Region Mismatch [42.Xy]41
- Replace Imaging Unit, 0 Estimated Pages Remain [84.Xy]41
- Replace Maintenance Kit, 0 Estimated Pages Remain [80.Xy]41
- Replace Unsupported Cartridge [32.Xy]42
- Replace Unsupported Imaging Unit [32.Xy]42
- Serial Option [X] Error [54]42
- SMTP Server Not Set Up. Contact System Administrator42
- Standard Network Software Error [54]42
- Standard Parallel Port Disabled [56]43
- Standard USB Port Disabled [56]43
- Too Many Flash Options Installed [58]43
- Too Many Trays Attached [58]43
- Unformatted Flash Detected [53]44
- Unsupported Option in Slot [X] [55]44
- Weblink Server Not Set Up. Contact System Administrator44
  - Fixing Print Quality Issues44
  - Paper Jams53
  - User Attendance Messages (0-99.99)82
  - Printer Hardware Errors88
  - Input Option Hardware Errors105
  - Symptoms108
Service Menus117
- Understanding the Control Panel and Menus (Ms510Dn and Ms610Dn)117
  - Using the Printer Control Panel117
  - Understanding the Colors of the Indicator and Sleep Button Lights118
- Understanding the Control Panel and Menus (Ms610De)119
- Menus List123
- Diagnostics Menu123
- Configuration Menu137
- Entering Invalid Engine Mode145
- Entering Recovery Mode145
- Accessing the Network SE Menu146
- Service Engineer Menu146
  - Accessing the Service Engineer (SE) Menu146
  - Service Engineer (SE) Menu146
Repair Information147
- Removal Precautions147
- Removal Procedures166
- Left Side Removals166
- Right Side Removals178
- Front Removals190
- Bottom Removals223
- Rear Side Removals240
- Top Side Removals245
  - Top Cover Removal245
  - Laser Scanning Unit (LSU) Removal246
- 250/550-Sheet Option Tray Removals247
Component Locations253
- Exterior Locations253
  - Ms510Dn and Ms610Dn Exterior Locations253
  - Ms610De Exterior Locations255
Maintenance257
- Inspection Guide257
- Scheduled Maintenance258
  - Maintenance Kits258
  - Resetting the Maintenance Counter259
- Lubrication Specification260
- Cleaning the Printer260
Parts Catalog262
- Legend262
- Assembly 1: Covers263
- Assembly 2: Electronics 1267
- Assembly 2: Electronics268
- Assembly 3: Electronics 2269
- Assembly 4: Frame271
- Assembly 5: Option Trays273
- Assembly 6: Maintenance Kits275
- Assembly 7: Power Cords277
Appendix A: Printer Specifications279
- Product Power Consumption279
- Electrical Specifications279
- Operating Clearances280
- Acoustics280
- Operating Environment281
Appendix B: Options and Features283
- Available Internal Options283
- Media Handling Options283
Appendix C: Theory of Operation285
- POR Sequence285
- Printer Control285
- Paper Path Information285
- Media Handling Components287
  - Main Drive Gearbox287
  - Autocompensator Mechanism (ACM)288
- Key Components288
- Electrophotographic Process (EP Process)291
Appendix D: Acronyms297
- Acronyms297
Index299
Part Number Index307
Part Name Index311
- Wiring Diagram315

Lexmark MS510 Series - Toner Rubs off; Toner Specks Appear on Prints

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