2-75
Confidential
Poor fixing
Completely blank
<User Check>
- Check the usage environment of the machine. Using the machine in
high temperature and humidity or low temperature and humidity
conditions can cause this problem.
- Select "Improve Toner Fixing" in the driver.
- Clean the corona wire.
- Replace the drum unit with a new one.
- Replace the toner cartridge with a new one.
Step
Cause
Remedy
1
Fuser unit failure
Replace the fuser unit.
2
High-voltage power supply PCB
failure
Replace the high-voltage power supply PCB
ASSY.
3
Low-voltage power supply PCB
failure
Replace the low-voltage power supply PCB
ASSY.
4
Laser unit failure
Replace the laser unit.
5
Main PCB failure
Replace the main PCB ASSY.
<User Check>
- Clean the corona wire.
- Replace the drum unit with a new one.
- Replace the toner cartridge with a new one.
Step
Cause
Remedy
1
Dirt on electrodes of the drum unit
and those of the machine
Clean the electrodes of the drum unit and
those of the machine. (Refer to
or
2
Laser unit attachment failure
Reattach the laser unit.
3
Laser unit failure
Replace the laser unit.
4
High-voltage power supply PCB
failure
Replace the high-voltage power supply PCB
ASSY.
5
Main PCB failure
Replace the main PCB ASSY.
Содержание MFC-8510DN
Страница 27: ...Confidential CHAPTER 1 SPECIFICATIONS ...
Страница 43: ...Confidential CHAPTER 2 TROUBLESHOOTING ...
Страница 53: ...2 8 Confidential 2 2 2 Scanning Legal model Fig 2 5 A4 model Fig 2 6 Document feed path Document feed path ...
Страница 143: ...Confidential CHAPTER 3 DISASSEMBLY REASSEMBLY ...
Страница 154: ...3 8 Confidential Develop joint gear 37 Fig 3 4 Document scanner unit A4 model Fig 3 5 Legal model Fig 3 6 ...
Страница 155: ...3 9 Confidential Hinge ASSY L Fig 3 7 Hinge R Legal model only Fig 3 8 ...
Страница 165: ...3 19 Confidential 11 Main frame R Harness colors may be changed for any reason NCU earth harness BR Guides ...
Страница 201: ...3 55 Confidential 13 Remove the LCD and touch panel ASSY from the panel cover Fig 3 70 Touch panel ASSY Panel cover LCD ...
Страница 277: ...Confidential CHAPTER 4 ADJUSTING AND UPDATING SETTINGS AS REQUIRED AFTER PARTS REPLACEMENT ...
Страница 293: ...Confidential CHAPTER 5 SERVICE FUNCTIONS ...
Страница 300: ...5 5 Confidential Fig 5 1 ...
Страница 325: ...5 30 Confidential Fig 5 14 ...
Страница 327: ...5 32 Confidential Fig 5 15 ...
Страница 346: ...Confidential CHAPTER 6 WIRING DIAGRAM ...
Страница 348: ...6 1 Confidential 1 WIRING DIAGRAM Wiring diagram ...
Страница 349: ...Confidential CHAPTER 7 PERIODICAL MAINTENANCE ...
Страница 368: ...Confidential APPENDIX 1 SERIAL NUMBERING SYSTEM ...
Страница 372: ...Confidential APPENDIX 3 INSTALLING MAINTENANCE DRIVER ...