Lexmark MS415 - Page 241

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9 Remove the three screws (B) securing the LSU.

Installation note: Mechanical and electronic LSU adjustments are required to complete the installation of the LSU.

See

“Printhead assembly adjustments” on page 165.

4514

Repair information

241

Main Page

Default Chapter1
- Service Manual1
Product Information2
Edition Notice2
- April2
- Table of Contents3
Notices and Safety Information11
- Laser Notices11
- Safety Information14
Preface19
- Service Manual Conventions19
General Information21
- Media Guidelines21
S22
- Data Security Notice29
- Tools Required for Service29
Diagnostic Information31
- Troubleshooting Overview31
  - Performing the Initial Troubleshooting Check31
  - Power-On Reset (POR) Sequence31
- Fixing Print Quality Issues32
- Paper Jams40
- Understanding the Printer Messages66
- User Attendance Messages (0-99.99)77
- Printer Hardware Errors85
- Input Option Hardware Errors115
Service Menus119
- Understanding the Printer Control Panel119
  - Using the Printer Control Panel119
  - Understanding the Colors of the Indicator and Sleep Button Lights120
- Menus List120
- Diagnostics Menu121
- Configuration Menu134
- Entering Invalid Engine Mode139
- Entering Recovery Mode140
- Accessing the Network SE Menu140
- Service Engineer Menu140
  - Accessing the Service Engineer (SE) Menu140
  - Service Engineer (SE) Menu140
Repair Information143
- Removal Precautions143
- Removal Procedures168
- Left Side Removals168
- Right Side Removals185
- Front Removals190
- Bottom Removals216
- Rear Side Removals232
- Top Side Removals239
  - Top Cover Removal239
  - Laser Scanning Unit (LSU) Removal240
- 250/550-Sheet Option Tray Removals242
Component Locations249
- Exterior Locations249
  - Front View249
  - Rear View250
Maintenance251
- Inspection Guide251
- Lubrication Specification251
- Cleaning the Printer252
Parts Catalog254
- Legend254
- Assembly 1: Covers255
- Assembly 2: Electronics 1257
- Assembly 3: Electronics 2259
- Assembly 4: Frame262
- Assembly 5: Option Trays265
- Assembly 6: Power Cords267
- Assembly 7: Miscellaneous269
Appendix A: Printer Specifications271
- Product Power Consumption271
- Electrical Specifications271
- Operating Clearances272
- Acoustics272
- Operating Environment273
Appendix B: Options and Features275
- Available Internal Options275
- Media Handling Options275
Appendix C: Theory of Operation277
- POR Sequence277
- Printer Control277
- Paper Path Information277
- Media Handling Components280
  - Main Drive Gearbox280
  - Autocompensator Mechanism (ACM)280
- Key Components281
  - Sensors281
  - Other Key Components282
- Electrophotographic Process (EP Process)283
Appendix D: Acronyms287
Index289
Part Number Index295
Part Name Index299

Lexmark MS415 - Page 241

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