Brother MFC8510DN
Troubleshooting. 7. Troubleshooting for Toner and Drum Problems
4.7.1 New toner is not detected
User Check
- Be sure to set a new toner cartridge.
Step | Cause | Remedy |
---|---|---|
1 | New toner actuator caught in some sections of the machine | Reattach the new toner actuator. |
2 | Connection failure of the relay front PCB harness | Reconnect the relay front PCB harness. |
3 | New toner sensor failure | Refer to "Check sensor operation (function code: 32)" to check the sensor operation. If the sensor operation is faulty, replace the relay front PCB ASSY. |
4 | Main PCB failure | Replace the main PCB ASSY. |
4.7.2 Cartridge error (toner cartridge cannot be detected)
Failed to determine whether the toner cartridge is new or old.
Step | Cause | Remedy |
---|---|---|
1 | The power switch was turned OFF or the front cover was opened while a new toner cartridge is being detected. | Reset the developer roller counter. (Refer to "Reset Developer Roller Counter") |
2 | New toner actuator coming off | Reattach the new toner actuator. |
3 | New toner sensor failure | Refer to "Check sensor operation (function code: 32)" to check the sensor operation. If the sensor operation is faulty, replace the relay front PCB ASSY |
4.7.3 Drum error
User Check
- Clean the corona wire of the drum unit.
- Replace the drum unit with a new one, and reset the drum counter.
Step | Cause | Remedy |
---|---|---|
1 | Dirt (dust) on electrodes of the drum unit | Clean the electrodes of the drum unit and those of the machine. |
2 | High-voltage power supply PCB failure | Replace the high-voltage power supply PCB ASSY. |
3 | Main PCB failure | Replace the main PCB ASSY. |