Error code C-0394 for Bizhub Press 1250 1250P 1052 Bizhub Pro 951

Code: C-0394
Classification: PI-PFU: Fan abnormality
PI-PFU (PF-703) paper feed assist fan /Fr3 (FM9) rotation abnormality.
The FM9EM error detection signal is detected twice in succession within a specified period of time after FM9 was turned ON. However, an error detection signal (blowout of ICP) is not detected.

 Measures to take when alert occurs:

The main body and the option stop immediately.                                                 

Estimated abnormal parts:

  • Paper feed assist fan /Fr3 (FM9: PF-703)
  • Paper feed assist fan /Fr3 (FM5: PF-706)
  • PF drive board (PFUDB)


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.                      
  1. Check the connector connection and the wiring between PFUDB and the fan, and repair it if any abnormality. 
  2. Rotate the fan by I/O or hand, and repair it if any abnormality. (Wiring diagram: (PF-703: 18-F, PF-706: 9-C).
  3. Replace FM9: PF-703                                                                                                                                                                      Replace FM5: PF-706
  4. Replace PFUDB.                                                                                                                                          
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