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Confidential
9-34
(I-7) Black and blurred horizontal stripes
User Check
(1) The drum unit may be damaged. Install a new drum unit.
(2) Check the paper used meets the recommended paper specifications.
(3) Clean the inside of the machine and the corona wire in the drum unit.
Possible cause
Step
Check
Result
Remedy
Ground
contacts
Scratch on the
drum
1
Are the horizontal stripes
at 74mm (exposure drum)
intervals?
Yes
The exposure drum was
scratched. Replace the
drum unit.
Toner stuck
on the
developer
roller
2
Are the horizontal stripes
at 42.7mm (developer
roller) intervals?
Yes
After printing several
pages, the problem will
disappear.
If not, replace the toner
cartridge.
Scratch on the
heat roller
3
Are the horizontal stripes
at 79mm (heat roller)
intervals?
Yes
Replace the heat roller.
Corona
contact failure
4
Are the charge electrodes
between the machine body
and the drum unit dirty?
Yes
Clean both electrodes.
High-voltage
power supply
PCB failure
5
Is the problem solved after
replacing the high-voltage
power supply PCB?
Yes
Replace the high-
voltage power supply
PCB.
(I-8) Black vertical streaks (in a gray background)
Possible cause
Step
Check
Result
Remedy
Ground
contacts
Corona failure
1
Is the corona wire dirty?
Yes Clean the corona wire
with the wire cleaner.
Содержание DCP 8060
Страница 1: ...Confidential FACSIMILE EQUIPMENT SERVICE MANUAL MODELS MFC 8460N 8860DN 8870DW DCP 8060 8065DN ...
Страница 19: ...Confidential CHAPTER 1 PARTS NAMES FUNCTIONS ...
Страница 28: ...Confidential CHAPTER 2 SPECIFICATIONS ...
Страница 65: ...Confidential CHAPTER 3 THEORY OF OPERATION ...
Страница 92: ...Confidential CHAPTER 4 TRANSFER OF DATA LEFT IN THE MACHINE TO BE SENT FOR REPAIR ...
Страница 95: ...Confidential 4 2 Cover page sample End page sample ...
Страница 96: ...Confidential CHAPTER 5 DISASSEMBLY REASSEMBLY AND LUBRICATION ...
Страница 164: ...Confidential 5 63 5 1 46 Panel Cover ASSY 1 Remove the Panel cover ASSY Fig 5 79 Panel cover ASSY Hooks ...
Страница 185: ...Confidential 5 84 7 Remove the Support lap from the Process cover Fig 5 119 Support lap Process cover ...
Страница 246: ...Confidential CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...
Страница 292: ...Confidential CHAPTER 7 CLEANING ...
Страница 294: ...Confidential CHAPTER 8 MAINTENANCE MODE ...
Страница 302: ...8 7 Confidential For white and black scanning a b c d e f g h i j ...
Страница 303: ...8 8 Confidential For color scanning Fig 8 3 Scanning Compensation Data List a b c d e f g h i j k l m n o p q s ...
Страница 314: ...8 19 Confidential Cover page sample End page sample Fig 8 10 ...
Страница 323: ...Confidential CHAPTER 9 ERROR INDICATION AND TROUBLESHOOTING ...
Страница 458: ...B Power Supply PCB 100V Confidential ...
Страница 459: ...B Power Supply PCB 200V Confidential ...
Страница 495: ...January 06 SM FAX049 8C5B03 9 Printed in Japan ...