Error code C-1271 for Bizhub Press 1250 1250P 1052 Bizhub Pro 951

Code: C-1271
ClassificationSD: SD-513 abnormality
Cause:
After the CD alignment motor/Up (M50) starts the home position search operation, the CD alignment plate home sensor/Up (PS104) 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:
  • CD alignment plate home sensor/Up (PS104)
  • CD alignment motor/Up (M50)
  • 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 CD alignment drive section, and if there is any abnormality, clean or repair it.
  2. Check the connector connection and the wiring harness between  PCB1 and the motor and the sensor. Then, repair them when there is any abnormality. (Wiring diagram: SD-513 (1/2): 16-K) (Wiring diagram: SD-513 (1/2): 21-B). 
  3. Check the I/O drive of the motor and the coupling of the gear, and repair or replace it when there is any abnormality.
  4. Check I/O and the operation of the sensor, and if there is any abnormality, repair or replace it.
  5. Replace PS104.
  6. Replace M50.
  7. Replace PCB1.
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