- Upper limit sensor /1 (PS5: PF-703)
- Upper limit sensor /1 (PS2: PF-706)
- Paper lift motor /1 (M7: PF-703)
- Paper lift motor /1 (M42: PF-706)
- PF drive board (PFUDB: PF-703/706)
- Check the paper loaded condition and the rear end restriction plate misaligned of the upper tray, and repair it if any abnormality.
- Check the connector connection and the wiring between PFUDB and motor/sensor, and repair it if any abnormality.
- Check the I/O drive of the motor and the coupling of the gear, and repair/replace it if any abnormality. (Wiring diagram: PF-703: 6-F, PF-706: 5-C).
- Check I/O and the operation of the sensor, and repair/replace it if any abnormality. (Wiring diagram: PF-703: 3-F, PF-706: 3-C)
- Replace PS5: PF-703 of PS2: PF-706
- Replace M7: PF-703 or M42: PF-706
- Replace PFUDB
