- Paper feed assist fan /Rr2 (FM6: 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: 11-F).
- Replace FM6.
- Replace PFUDB.
