Error code C-1294 for Bizhub Press 1250 1250P 1052 Bizhub Pro 951

Code: C-1294
Classification: RU: RU-509 abnormality
Cause:
The home position search operation of the humidification section roller pressure motor /Rt (M9) does not complete within a specified period of time.

Measures to take when alert occurs:

         The main body and the option stop immediately.                                                 
Estimated abnormal parts:
  • Humidification section  roller pressure motor/Rt (M9)
  • HM drive board (HMDB)
  • RU control board (RUCB)
Correction:
      Turn OFF/ON the power switch (SW2) of the main body when releasing an abnormal condition. 
Note: 
  • The message "Please call service" is displayed on the panel.

Solution:

  1. Check the humidification section, and clean/repair it if any abnormality.
  2. Check the connector connection and the wiring between HMDB and the motor, and repair it if any abnormality.
  3. Check the connector connection between HMDB and RUCB, and repair it if any abnormality.
  4. Check the I/O drive of the motor and the coupling of the gear, and repair or replace it if any abnormality. (Wiring diagram: RU-509: 15-O)
  5. Replace M9.
  6. Replace HMDB.
  7. Replace RUCB.
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