Brother DCP-9055CDN Service Manual page 72

■ Error code 10
Registration
Registration failed. Press Start, and try again.
Inter-color position alignment adjustment failure. (Error, which cannot be recorded, occurs.)
Step
1 Main PCB failure
■ Error code 11
Registration
Registration failed. Press Start, and try again.
Inter-color position alignment adjustment failure.
(Toner of the color which is being used reached the end of life.)
<User Check>
- Replace the toner cartridge of the color displayed on the LCD.
Step
1 Main PCB failure
■ Error code 12
Registration
Registration failed. See Troubleshooting chapter in User's Guide.
Inter-color position alignment adjustment failure.
(Incorrect measurement value of inter-color position alignment adjustment.)
<User Check>
- Replace the cleaner unit with a new one.
- Replace the belt unit with a new one.
- Replace the waste toner box with a new one.
Step
1 Harness connection failure of
registration mark sensor holder
ASSY
2 Registration mark sensor PCB
failure
3 Engine PCB failure
4 Low-voltage power supply PCB
failure
5 Main PCB failure
Cause
Cause
Cause
2-34
Remedy
Replace the main PCB ASSY.
Remedy
Replace the main PCB ASSY.
Remedy
Check the harness connection of the
registration mark sensor holder ASSY and
reconnect it.
Replace the registration mark sensor
holder ASSY.
Replace the engine PCB ASSY.
Replace the low-voltage power supply
PCB ASSY.
Replace the main PCB ASSY.
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