- FNS control board (FNSCB)
- Gripper paper exit motor /Up (M16)
- Gripper home sensor /Up (PS24)
- Check the connector connection and the wiring between FNSCB 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: FS-532: 2-F)
- Check I/O and the operation of the sensor, and repair/replace it if any abnormality. (Wiring diagram: FS-532: 4-B)
- Replace PS24.
- Replace M16.
- Replace FNSCB.
