- Paper feed assist fan /Fr2 (FM5: PF-703)
- PF drive board (PFUDB)
- Check the connector connection and the wiring between PFUDB and the fan, and repair it if any abnormality.
- Rotate the fan with I/O or by hand, and repair or replace it if there is any abnormality. (Wiring diagram: PF-703: 10-F).
- Replace FM5 and PFUDB at a time.
