Error code C-1124 for Bizhub Press 1250 1250P 1052 Bizhub Pro 951

Code: C-1124
Classification: PI: PI abnormality
Cause:
The tray upper limit sensor /Lw (PS209) or the tray lower limit sensor /Lw (PS210) does not turn ON within the specified period of time after the tray lift motor /Lw (M202) turns ON.
   
Measures to take when alert occurs:
The main body and the option stop immediately.                                                 
Estimated abnormal parts:
  • FNS control board (FNSCB)
  • PI drive board (PIDB)
  • Tray lift motor /Lw (M202)
  • Tray upper limit sensor /Lw (PS209)
  • Tray lower limit sensor /Lw (PS210)
Correction:
Turn OFF/ON the sub power switch of the main body.
Note: The message "Please call service" is displayed on the panel.
                      
Solution:
  1. Check the PI lower tray section, and clean/repair it if any abnormality.
  2. Check the connector connection and the wiring between PIDB and motor/sensor, and repair it if any abnormality.
  3. Check the connector connection and the wiring between FNSCB and PIDB, and repair it if any abnormality.
  4. Check the I/O drive of the motor of the coupling of the gear, and repair/replace it if any abnormality. (Wiring diagram: PI: 5-B)
  5. Check I/O and the operation of the sensor, and repair/replace it if any abnormality. (Wiring diagram: PI: 6-B)
  6. Replace M202.
  7. Replace PS209.
  8. Replace PS210
  9. Replace PIDB.
  10. Replace FNSCB. 
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