Troubleshooting For Toner And Drum Problems; New Toner Is Not Detected; Toner Cartridge Cannot Be Recognized; Error Message Prompting Toner Cartridge Replacement Does Not Disappear - Brother HL-L5000D Service Manual

4.7 Troubleshooting for Toner and Drum Problems

4.7.1 New toner is not detected

<User Check>
- Check that the packaged toner cartridge is not set.
- Check that a new (not used) toner cartridge is set.
- Check that the genuine toner cartridge is set.
Step
1 New toner actuator coming off
Connection failure of the relay front
2
harness
3 Relay front PCB failure
4 Main PCB failure

4.7.2 Toner cartridge cannot be recognized

<User Check>
- Set the toner cartridge correctly.
- Replace the toner cartridge with a new one.
Step
Toner amount detection sensor
1
PCB (light reception) failure
2 Relay front PCB failure
3 Main PCB failure

4.7.3 Error message prompting toner cartridge replacement does not disappear

<User Check>
- Check that a new (not used) toner cartridge is set.
- Check that the genuine toner cartridge is set.
Step
1 New toner actuator coming off
Connection failure of the relay front
2
harness
3 Relay front PCB failure
4 Main PCB failure
Cause
Reattach the new toner actuator.
Reconnect the relay front harness.
Replace the relay front PCB ASSY.
Replace the main PCB ASSY.
Cause
Replace the toner amount detection sensor
PCB ASSY (light reception).
Replace the relay front PCB ASSY.
Replace the main PCB ASSY.
Cause
Reattach the new toner actuator.
Reconnect the relay front harness.
Replace the relay front PCB ASSY.
Replace the main PCB ASSY.
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Remedy
Remedy
Remedy
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