Brother 09055CDN Service Manual page 73

■ Error code 12
(Non Touch panel model)
Registration
Registration failed. See Troubleshooting chapter in User's Guide.
(Touch panel model)
Registration failed
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 toner cartridge with a new one.
- Replace the belt unit with a new one.
- Replace the waste toner box with a new one.
Step
1 Foreign object is affixed around
the density sensor
2 Harness connection failure of
registration mark sensor holder
ASSY
3 Registration mark sensor PCB
failure
4 High-voltage power supply PCB
failure
5 Engine PCB failure
6 Low-voltage power supply PCB
failure
7 Main PCB failure
■ Error code 16
Duplex Disabled
Reload paper, then press Start.
Paper of unsupported size for duplex printing or paper of different sizes is loaded.
<User Check>
- Use the A4 or Letter size paper.
Step
1 Registration rear actuator
catching on some position
2 Main PCB failure
Cause
Cause
2-34
Remedy
Remove the foreign object affixed around
the density sensor.
Check the harness connection of the
registration mark sensor holder ASSY and
reconnect it.
Replace the registration mark sensor
holder ASSY.
Replace the high-voltage power supply
PCB ASSY.
Replace the engine PCB ASSY.
Replace the low-voltage power supply
PCB ASSY.
Replace the main PCB ASSY.
Remedy
Correct the position of the registration rear
actuator.
Replace the main PCB ASSY.
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