- Paper lift motor (M100)
- LU drive board (LUDB)
Solution:
- Check the connector connection and the wiring between LUDB and the motor, and repair it if any abnormality.
- Check the I/O drive of the motor and the coupling of the gear, repair/replace it if any abnormality, and then replace M100 (Wiring diagram: LU: 5-C).
- Replace LUDB.
- Replace M100 and LUDB at a time.
