3-75
Confidential
■
White spots on one color image
<User Check>
- Toner may be empty. Replace the toner cartridge with a new one.
- If the same problem occurs after printing a few pages, the adhesive of the label or the like,
paper powder or dirt may be attached on the surface of the exposure drum. When the size
of the white spots is less than 0.35mm, feed the paper from the manual feed slot one to
three times to clean the drum. (Refer to
“Drum cleaning function of product” in the next
.) When the size of the spots is 0.35mm or more, or when the same problem occurs
after feeding the drum cleaning sheet, wipe off the dirt on the exposure drum with a cotton
swab. (Refer to
“Drum unit cleaning” in this chapter
- The drum unit may be damaged. Replace the drum unit with a new one.
- The belt unit may be damaged. Replace the belt unit with a new one.
Step
Cause
Check
Result
Remedy
1
Toner cartridge
failure
Are the white spots at 31
mm (develop roller
circumference) intervals?
Yes
If the develop roller
surface is scratched,
replace the toner cartridge.
2
Toner/new
sensor PCB failure
Is the “Replace Toner”
message indicated on
the LCD when replacing
the toner cartridge with
the one which has
reached the end of life?
No
Replace the toner/new
sensor PCB ASSY.
Summary of Contents for DCP-9010CN
Page 11: ...Confidential CHAPTER 1 SPECIFICATIONS ...
Page 53: ...Confidential CHAPTER 2 THEORY OF OPERATION ...
Page 90: ...Confidential CHAPTER 3 ERROR INDICATION AND TROUBLESHOOTING ...
Page 201: ...Confidential CHAPTER 4 PERIODICAL MAINTENANCE ...
Page 224: ...Confidential CHAPTER 5 DISASSEMBLY AND ASSEMBLY ...
Page 440: ...Confidential CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...
Page 446: ...6 5 Confidential 10 Alert warning message appears click Continue Anyway to proceed ...
Page 456: ...Confidential CHAPTER 7 SERVICE FUNCTIONS ...
Page 464: ...7 6 Confidential For color scanning Fig 7 2 ...
Page 487: ...7 29 Confidential Cover page sample Fig 7 13 End page sample Fig 7 14 ...
Page 492: ...7 34 Confidential Color registration adjustment chart Fig 7 16 ...
Page 496: ...7 38 Confidential LED test pattern M68_L Fig 7 18 ...
Page 498: ...7 40 Confidential Fig 7 19 ...
Page 500: ...7 42 Confidential Color test pattern Fig 7 20 MCYK Y C K M YCMK_ _A ...
Page 518: ...Confidential CHAPTER 8 CIRCUIT DIAGRAMS WIRING DIAGRAM ...
Page 521: ...Confidential 8 2 High voltage Power Supply PCB Circuit Diagram SYS HITEK SPH 8N35 2 3 ...
Page 522: ...Confidential 8 3 High voltage Power Supply PCB Circuit Diagram SYS HITEK SPH 8N35 3 3 ...
Page 523: ...Confidential 8 4 High voltage Power Supply PCB Circuit Diagram MURATA MPH3316 1 3 ...
Page 524: ...Confidential 8 5 High voltage Power Supply PCB Circuit Diagram MURATA MPH3316 2 3 ...
Page 525: ...Confidential 8 6 High voltage Power Supply PCB Circuit Diagram MURATA MPH3316 3 3 ...
Page 526: ...Confidential 8 7 Low voltage Power Supply PCB Circuit Diagram 100V ...
Page 527: ...Confidential 8 8 Low voltage Power Supply PCB Circuit Diagram 200V ...
Page 528: ...Confidential 8 9 NCU PCB Circuit Diagram USA Canada ...
Page 529: ...Confidential 8 10 NCU PCB Circuit Diagram Europe Asia Oceania China ...
Page 530: ...Confidential 8 11 NCU PCB Circuit Diagram South Africa Gulf ...
Page 531: ...Confidential 8 12 2 WIRING DIAGRAM Wiring Diagram 1 2 ...
Page 532: ...Confidential 8 13 Wiring Diagram 2 2 ...
Page 590: ...Confidential APPENDIX 3 SERIAL NUMBERING SYSTEM ...
Page 592: ...App 3 2 Confidential Serial number of the LED ASSY Print position Fig App 3 4 Serial number ...
Page 593: ...Confidential APPENDIX 4 SCREW CATALOGUE ...
Page 595: ...Confidential APPENDIX 5 REFERENCES ...
Page 597: ...Confidential APPENDIX 6 GLOSSARY ...