Error code C-1309 for Bizhub Press 1250 1250P 1052 Bizhub Pro 951

Code: C-1309
Classification: LS (2nd tandem): LS abnormality
Cause:
An error detection signal of FM4 is detected continuously for a specified period of time while the motor cooling fan motor (FM4) is ON.

Measures to take when alert occurs:

         The main body and the option stop immediately.                                                 
Estimated abnormal parts:
  • Motor cooling fan motor (FM4)
  • 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 when there is any abnormality.
  2. Rotate the fan by hand, and repair or re[lace it when there is any abnormality. (Wiring diagram: LS-505: 7-H, LS-506: 6-H). 
  3. Replace FM4.
  4. Replace LSCB.
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