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3-70
Confidential
■
Vertical streaks
Fig. 3-10
<User Check>
- This problem may occur with noise which is caused by
dirt on the corona wire in the drum unit. In this case,
clean the corona wire.
- Replace the drum unit with a new one.
- Replace the toner cartridge with a new one.
Memo:
You can check this image defect with the function code 71.
(Refer to
“1.4.21 Color test pattern (Function code 71)” in Chapter 7
Step
Cause
Check
Result
Remedy
1
Dirt in the paper
feed system
Is the paper tray or feed
system on the drum unit
dirty with toner?
Yes
Wipe dirt off.
2
Exposure drum
dirty
Is there vertical dirt with
toner on the surface of
the exposure drum?
Yes
Clean the drum unit.
3
Bend of tray ground
spring
Is the tray ground spring
bent?
(Refer to Fig. 3-10)
Yes
Replace the paper tray.
4
Scratch on the heat
roller
Is there a scratch on the
surface of the heat roller?
Yes
Replace the fuser unit.
5
LED ASSY failure
Is the problem solved
after replacing the LED
ASSY?
Yes
Replace the LED ASSY.
Note:
If the machine prints the same pattern, especially including vertical streaks, continuously,
black vertical streaks may appear on the paper since the electrostatic performance of the
exposure drum is decreased temporally.
Paper tray
Tray ground spring
<Bottom of paper tray>
Содержание DCP-9010CN
Страница 11: ...Confidential CHAPTER 1 SPECIFICATIONS ...
Страница 53: ...Confidential CHAPTER 2 THEORY OF OPERATION ...
Страница 90: ...Confidential CHAPTER 3 ERROR INDICATION AND TROUBLESHOOTING ...
Страница 201: ...Confidential CHAPTER 4 PERIODICAL MAINTENANCE ...
Страница 224: ...Confidential CHAPTER 5 DISASSEMBLY AND ASSEMBLY ...
Страница 440: ...Confidential CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...
Страница 446: ...6 5 Confidential 10 Alert warning message appears click Continue Anyway to proceed ...
Страница 456: ...Confidential CHAPTER 7 SERVICE FUNCTIONS ...
Страница 464: ...7 6 Confidential For color scanning Fig 7 2 ...
Страница 487: ...7 29 Confidential Cover page sample Fig 7 13 End page sample Fig 7 14 ...
Страница 492: ...7 34 Confidential Color registration adjustment chart Fig 7 16 ...
Страница 496: ...7 38 Confidential LED test pattern M68_L Fig 7 18 ...
Страница 498: ...7 40 Confidential Fig 7 19 ...
Страница 500: ...7 42 Confidential Color test pattern Fig 7 20 MCYK Y C K M YCMK_ _A ...
Страница 518: ...Confidential CHAPTER 8 CIRCUIT DIAGRAMS WIRING DIAGRAM ...
Страница 520: ...Confidential 8 1 1 CIRCUIT DIAGRAMS High voltage Power Supply PCB Circuit Diagram SYS HITEK SPH 8N35 1 3 ...
Страница 521: ...Confidential 8 2 High voltage Power Supply PCB Circuit Diagram SYS HITEK SPH 8N35 2 3 ...
Страница 522: ...Confidential 8 3 High voltage Power Supply PCB Circuit Diagram SYS HITEK SPH 8N35 3 3 ...
Страница 523: ...Confidential 8 4 High voltage Power Supply PCB Circuit Diagram MURATA MPH3316 1 3 ...
Страница 524: ...Confidential 8 5 High voltage Power Supply PCB Circuit Diagram MURATA MPH3316 2 3 ...
Страница 525: ...Confidential 8 6 High voltage Power Supply PCB Circuit Diagram MURATA MPH3316 3 3 ...
Страница 526: ...Confidential 8 7 Low voltage Power Supply PCB Circuit Diagram 100V ...
Страница 527: ...Confidential 8 8 Low voltage Power Supply PCB Circuit Diagram 200V ...
Страница 528: ...Confidential 8 9 NCU PCB Circuit Diagram USA Canada ...
Страница 529: ...Confidential 8 10 NCU PCB Circuit Diagram Europe Asia Oceania China ...
Страница 530: ...Confidential 8 11 NCU PCB Circuit Diagram South Africa Gulf ...
Страница 531: ...Confidential 8 12 2 WIRING DIAGRAM Wiring Diagram 1 2 ...
Страница 532: ...Confidential 8 13 Wiring Diagram 2 2 ...
Страница 590: ...Confidential APPENDIX 3 SERIAL NUMBERING SYSTEM ...
Страница 592: ...App 3 2 Confidential Serial number of the LED ASSY Print position Fig App 3 4 Serial number ...
Страница 593: ...Confidential APPENDIX 4 SCREW CATALOGUE ...
Страница 595: ...Confidential APPENDIX 5 REFERENCES ...
Страница 597: ...Confidential APPENDIX 6 GLOSSARY ...