Konica-Minolta bizhub 5000i

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	Cause	Remedy
1	New toner actuator coming off	Reattach the new toner actuator.
2	Connection failure of the relay front harness	Reconnect the relay front harness.
3	Relay front PCB failure	Replace the relay front PCB ASSY.
4	Main PCB failure	Replace the main PCB ASSY.

Toner cartridge cannot be recognized

User Check

- Set the toner cartridge correctly.
- Replace the toner cartridge with a new one.

Step	Cause	Remedy
1	Toner amount detection sensor PCB (light reception) failure	Replace the toner amount detection sensor PCB ASSY (light reception).
2	Relay front PCB failure	Replace the relay front PCB ASSY.
3	Main PCB failure	Replace the main PCB ASSY.

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	Cause	Remedy
1	New toner actuator coming off	Reattach the new toner actuator.
2	Connection failure of the relay front harness	Reconnect the relay front harness.
3	Relay front PCB failure	Replace the relay front PCB ASSY.
4	Main PCB failure	Replace the main PCB ASSY.

Drum error

User Check

- Clean the corona wire of the drum unit.
- Replace the drum unit with a new one.

Step	Cause	Remedy
1	Dirt on the electrodes of the drum unit and those of the machine	Clean the electrodes of the drum unit and those of the machine.
2	Dirt on the high-voltage power supply PCB terminal	Clean the electrodes of the machine.
3	High-voltage power supply PCB failure	Replace the high-voltage power supply PCB ASSY.
4	Main PCB failure	Replace the main PCB ASSY.

Error message prompting drum replacement does not disappear

User Check

- Reset the drum counter according to the manual.

Step	Cause	Remedy
1	Main PCB failure	Replace the main PCB ASSY.