Paper ejection stacker full error

Detection condition
  • Full status of the face down tray 2, finisher tray 1/2/3, and the finisher tray top has been detected.
Defect-related parts
  • 920802 Face down tray (main unit)
    • 1st Paper Eject Tray Full Upper Detection Sensor
    • 1st Paper Eject Tray Full Lower Detection Sensor
    • Paper Ejection Tray Rib Lower Limit Sensor
    • MCU board
  • 920803 Finisher tray 1 (Floor Finisher Upper)　
    • FIN Output Tray Full Detection Sensor
    • MCU board
  • 920804 Finisher tray 2 (Floor Finisher Lower / Inner Finisher)
    • FIN Finisher Tray Lower Limit Sensor
    • FIN Finisher Tray Upper Limit Sensor
    • FIN Finisher Tray Mid-position Sensor
    • FIN Paper Holder HP Sensor
    • IN FIN Tray Lower Limit Sensor
    • IN FIN Paper Rear Edge Holder HP Sensor1
    • IN FIN Paper Rear Edge Holder HP Sensor2
    • MCU board
  • 920807 Finisher tray 3 (saddle stitching)
    • SDL Paper Feed Tray Paper Detection Sensor
    • MCU board
  • 920809 Face Down Tray 2 (Inner tray)
    • 2nd Paper Eject Tray Full Detection Sensor
    • MCU board
  • 920810 Finisher Tray Top (Top side of Finisher)
    • BRG Paper Feed Sensor 2
    • MCU board
Troubleshooting
Step Confirmation and action YES NO
1

Check the output tray corresponding to the error

Is there paper piled up in the output tray? If so, remove the paper.

  • Has the defect been improved?
 End of work Go to step 2
2

Clean the sensor related to the error

Is there any dirt on the light-receiving or light-emitting side of the sensor? If dirty, clean it.

  • Has the defect been improved?
 End of work Go to step 3
3

Check the sensor for installation, check connection of the connectors and cables

Is the sensor properly installed? Is there any connectors that are not fully inserted? Is there any cables that are disconnected or pinched?

  • Has the defect been improved?
 End of work

Go to step 4
4

Replace the sensor related to the error
Replace the sensor related to the error.

  • Did the replacement solve the problem?

End of work

 Replace the MCU board