Troubleshooting; Error Cause And Remedy - Brother DCP-7090 Service Manual

4. TROUBLESHOOTING

4.1 Error Cause and Remedy

 Error code 0102
ASIC error or motor driver error occurred.
Step
1
 Error code 0201
Cannot detect the synchronized signal of the paper feed motor. The speed of the paper feed
motor does not stabilize within the specified time.
Step
1
2
3
4
5
6
7
 Error code 0300
Cannot detect the lock signal of the polygon motor for the laser unit. (second time)
Error code 0305
Cannot detect the lock signal of the polygon motor for the laser unit. (first time)
Step
1
2
3
Cause
Main PCB failure
Cause
Connection failure of the paper
feed motor flat cable
Connection failure of the low-
voltage power supply PCB
harness
Paper feed motor flat cable
failure
Damaged parts in main drive
Damaged fuser unit
Low-voltage power supply PCB
failure
Main PCB failure
Cause
Connection failure of the polygon
motor harness
Laser unit failure
Main PCB failure
Replace the main PCB ASSY.
Reconnect the paper feed motor flat
cable.
Reconnect the low-voltage power supply
PCB harness.
Replace the paper feed motor flat cable.
Replace the frame L unit.
Replace the fuser unit.
Replace the low-voltage power supply
PCB ASSY.
Replace the main PCB ASSY.
Reconnect the polygon motor harness.
Replace the laser unit.
Replace the main PCB ASSY.
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Remedy
Remedy
Remedy
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