Error code C-1259 for Bizhub Press 1250 1250P 1052 Bizhub Pro 951

Code: C-1259
Classification: SD: SD-506 abnormality
Cause:
The bundle press home sensor (PS35) does not become active within a specified period of time after the bundle press stage up down motor (M24) starts the home position search operation. Alternatively, PS35 or the bundle press stage up down upper limit sensor (PS45) does not become active within a specified period of time M24 stars operation.
Measures to take when alert occurs:
         The main body and the option stop immediately.                                                 
Estimated abnormal parts:
  • Bundle press stage up down motor (M24)
  • Bundle press stage up down home sensor (PS35)
  • Bundle press stage up down limit sensor (PS45)
  • SD control board (SDCB)
  • SD drive board (SDDB)
Correction:
         Press the help key to activate and deactivate the sub power switch (SW2) of the main body.
Note: 
    • When you isolate the faulty part, the limited use is available.
    • The message "Please call service" and "Press [Help] to disengage" are displayed alternately on the touch panel   
    • When you press the help key, the message "Please turn on the power again" is displayed on the touch panel.  
Solution:
  1. Check the bundle press stage up down section, and clean or repair it when there is any abnormality.
  2. Check the connector connection and the wiring between SDDB and the motor and the sensor, and repair it when there is any abnormality.
  3. Check the connector connection and the wiring between SDDB and SDCB, and repair it when there is any abnormality.
  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. (Wiring diagram: SD-506: 21-D)
  5. Check I/O and the operation of the sensor, and repair or replace it when there is any abnormality. (Wiring diagram: SD-506: 24-D, 25-D)
  6. Replace PS35 or PS45.
  7. Replace M24.
  8. Replace SDDB.
  9. Replace SDCB.
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