Brother HL-4040CN, HL-4050CDN, HL-4070CDW, Service Manual

This Brother HL-4040CN, HL-4050CDN, HL-4070CDW Service Manual provides detailed diagrams, pictures, and procedures for diagnosing and repairing your copier. It is a valuable resource for both professional mechanics and DIY enthusiasts.

You can print, zoom, or read any diagram, picture, or page from this Service Manual. Each chapter is fully detailed and contains simulation codes, trouble codes, maintenance procedures, and reset procedures for the Brother HL-4040CN, HL-4050CDN, HL-4070CDW photocopier.

The manual includes the following chapters:

• REGULATION
• SAFETY INFORMATION

• CHAPTER 1. TROUBLESHOOTING

  • 1. INTRODUCTION
  • 2. ERROR CODES
  • 3. PAPER FEEDING PROBLEMS
  • 4. IMAGE DEFECT TROUBLESHOOTING
  • 5. SOFTWARE SETTING PROBLEMS
  • 6. NETWORK PROBLEMS
  • 7. OTHERS PROBLEMS

• CHAPTER 2. PERIODICAL MAINTENANCE

  • 1. CONSUMABLE PARTS
  • 2. PERIODICAL REPLACEMENT PARTS
  • 2.1 Periodical Replacement Parts
  • 2.2 Procedures to Replace Periodical Replacement Parts
  • 2.3 Parts Life Reset Function

• CHAPTER 3. DISASSEMBLY AND ASSEMBLY

  • 1. SAFETY PRECAUTIONS
  • 2. PACKING
  • 3. SCREW TORQUE LIST
  • 4. LUBRICATION
  • 5. OVERVIEW OF GEARS
  • 6. HARNESS ROUTING
  • 7. DISASSEMBLY FLOW
  • 8. DISASSEMBLY PROCEDURE
  • 9. DISASSEMBLY PROCEDURE (LT-100CL) (HL-4050CDN/ 4070CDW ONLY)

• CHAPTER 4. ADJUSTMENTS AND UPDATING OF SETTING, REQUIRED AFTER PARTS REPLACEMENT

  • 1. IF YOU REPLACE THE MAIN PCB
  • 2. IF YOU REPLACE THE ENGINE PCB

• CHAPTER 5. SERVICE FUNCTIONS

  • 1. MAINTENANCE MODE
  • 2. OTHER SERVICE FUNCTIONS
• CHAPTER 6. CIRCUIT DIAGRAMS, WIRING DIAGRAM
• APPENDIX 1 WORKER SWITCH (WSW)
• APPENDIX 2 DELETION OF PERSONAL INFORMATION
• APPENDIX 3 SERIAL NUMBERING SYSTEM
• APPENDIX 4 SCREW CATALOGUE
• APPENDIX 5 REFERENCES

Number of pages: 333