Brother DCP1618W
Troubleshooting. Fuser Unit, Laser Unit Problems
Troubleshooting for Fuser Unit Problems
Fuser unit failure
Step | Cause | Remedy |
---|---|---|
1 | Connection failure of the center thermistor harness of the fuser unit | Reconnect the center thermistor harness of the fuser unit. |
2 | Connection failure of the side thermistor harness | Reconnect the side thermistor harness. |
3 | Connection failure of the low voltage PCB harness | Reconnect the low voltage PCB harness. |
4 | Connection failure of the heater harness of the fuser unit | Reconnect the heater harness of the fuser unit. |
5 | Low voltage power supply PCB failure | Replace the low voltage power supply PCB unit. |
6 | Fuser unit failure | Replace the fuser unit. |
7 | Main PCB failure | Replace the main PCB ASSY. |
Note:
• Turn the power switch OFF and then back ON again. Leave the machine for approximately 15 minutes to cool the heater. This problem may have then been solved.
Troubleshooting for Laser Unit Problems
Laser unit failure
User Check
- Turn ON the power switch, then open the top cover. Leave the machine for a while to remove condensation.
Step | Cause | Remedy |
---|---|---|
1 | Connection failure of the laser unit flat cable | Reconnect the laser unit flat cable. |
2 | Connection failure of the polygon motor harness | Reconnect the polygon motor harness. |
3 | Laser unit failure | Replace the laser unit. |
4 | Main PCB failure | Replace the main PCB ASSY. |