Error code C-1269 for Bizhub Press 1250 1250P 1052 Bizhub Pro 951

Code: C-1269
Classification: SD: SD-513 abnormality
Cause:
After the reverse extra gate motor (M46) starts the home position search operation, the reverse extra gate home sensor (PS66) does not become active within a specified period of time.

 Measures to take when alert occurs:

         The main body and the option stop immediately.                                                 
Estimated abnormal parts:
  • Reverse extra gate home sensor (PS66)
  • Reverse extra gate motor (M46)
  • SD drive board (PCB2)
  • SD control board (PCB1)
Correction:
         Press help key and activate and deactivate the sub power switch (SW2) of the main body.
Note: 
  • Faulty part isolation allows you to use the machine temporarily.
  • When you press HELP key, the message "Please call service" and "Press [Help] to disengage" are alternately displayed.
  • When you press HELP key, the message "Please turn on the power again" is displayed.

Solution:

  1. Check the reverse extra gate drive section, and if there is any abnormality, clean or repair it.
  2. Check the connector connection and the wiring harness between PCB2 and the motor, PCB1 and the sensor. Then, repair them when there is any abnormality. (Wiring diagram: SD-513 (1/2): 5-N) (Wiring diagram: SD-513 (1/2): 20-B). 
  3. Check the connector connection and the wiring harness between PCB2 and PCB1, and if there is any abnormality, repair them.
  4. Check the I/O drive of the motor and the coupling of the gear, and repair or replace it when there is any abnormality.
  5. Check I/O and the operation of the sensor, and if there is any abnormality, repair or replace it.
  6. Replace PS66.
  7. Replace M46.
  8. Replace PCB2.
  9. Replace PCB1.
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