Error code C-1303 for Bizhub Press 1250 1250P 1052 Bizhub Pro 951

Code: C-1303
Classification: LS (1st tandem): LS abnormality
Cause:
An error detection signal of FM3 is detected continuously for a specified period of time while the paper  cooling fan motor/Mi (FM3) is active.

Measures to take when alert occurs:

         The main body and the option stop immediately.                                                 
Estimated abnormal parts:
  • Paper cooling fan motor /Mi (FM3)
  • LS control board (LSCB)
Correction:      
Note: 
  • The message "Please call service" is displayed on the panel.

Solution:

  1. Check the connector connection and the wiring between LSCB and the fan, and repair it if any abnormality.
  2. Rotate the fan or I/O by hand, and repair it when there is any abnormality. (Wiring diagram: LS-505: 5-A). 
  3. Replace FM3.
  4. Replace LSCB.
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