- Upper limit sensor /1 (PS6)
- Tray lift-up motor /1 (M25)
- Printer control board (PRCB)
- DC power supply /2 (DCPS/2)
- Check the paper loaded condition and the rear end restriction plate condition of tray 1, and repair it if any abnormality.
- Check the connector connection and the wiring between PRCB 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: Main body (3/4): 16-A)
- Check I/O and the operation of the sensor, and repair/replace it if abnormality. (Wiring diagram: Main body (3/4): 13-A)
- Replace PS6
- Replace M25
- Replace PRCB
- Replace DCPS /2
