High Voltage Power Supply Pcb Failure; Main Pcb Failure - Brother HL-1110 Service Manual

4.7.9 High voltage power supply PCB failure

Step
1 Connection failure of electrodes
Connection failure of the high
2
voltage PCB flat cable
High voltage power supply PCB
3
failure
4

Main PCB failure

4.7.10 Main PCB failure
<User Check>
- Turn the power switch OFF and then back ON again.
Step
1 Firmware malfunction
2 Main PCB failure
Cause
Clean and reattach each electrode.
Reconnect the high voltage PCB flat cable.
Replace the high voltage power supply PCB
ASSY.
Replace the main PCB ASSY.
Cause
Install the latest firmware.
Replace the main PCB ASSY.
1-35
Remedy
Remedy
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