Brother DCP-9055CDN Service Manual page 113

■ Error code 9D
Registration
Registration failed. See Troubleshooting chapter in User's Guide.
Detection of incorrect registration sensor measurement value when implementing adjustment
of inter-color position alignment.
<User Check>
- Check if there is a scratch, dirt or the like on the belt unit. If there is, replace the belt unit
with a new one.
Step
1 Harness connection failure of the
registration mark L PCB ASSY or
registration mark R PCB ASSY
2 Registration mark sensor holder
ASSY failure
3 High-voltage power supply PCB
failure
4 Main PCB failure
■ Error code 9E
Registration
Registration failed. Insufficient Toner for Registration.
Toner of the color which is being used reaches the end of life when implementing adjustment
of inter-color position alignment.
<User Check>
- Replace the toner cartridge with a new one.
Step
1 Toner/New sensor PCB failure
(Toner empty)
2 Engine PCB failure
■ Error code 9F
---
An unidentified error occurred.
This error does not usually occur in the normal use. The conceivable causes are noise around
the installation site, fluctuation of the power supply voltage, and failures in the software.
<User Check>
- Turn OFF the power switch, and turn it ON again after a while.
Step
1 Main PCB failure
Cause
Cause
Cause
2-75
Remedy
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 main PCB ASSY.
Remedy
Check the sensor performance following
the procedure described in
32". If any problem occurs, replace the
Toner/New sensor PCB ASSY.
Replace the engine PCB ASSY.
Remedy
Replace the main PCB ASSY.
"Function code
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