Error code C-1154 for Bizhub Press 1250 1250P 1052 Bizhub Pro 951

Code: C-1154
Classification: FS: FS-532 abnormality
Cause:
After the gripper exit sensor /Lw (M16) turns On, the gripper home sensor /Up (PS24) does not turn ON within a specified period of time.
   
Measures to take when alert occurs:
The main body and the option stop immediately.                                                 
Estimated abnormal parts:
  • FNS control board (FNSCB)
  • Gripper paper exit motor /Up (M16)
  • Gripper home sensor /Up (PS24)
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 connector connection and the wiring between FNSCB and  motor/sensor, and repair it if any abnormality.
  2. 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) 
  3. Check I/O and the operation of the sensor, and repair/replace it if any abnormality. (Wiring diagram: FS-532: 4-B) 
  4. Replace PS24.
  5. Replace M16.
  6. Replace FNSCB. 
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