Error code C-1320 for Bizhub Press 1250 1250P 1052 Bizhub Pro 951

Code: C-1320
Classification: LS (3rd tandem): LS abnormality
Cause:

An error detection signal of FM5 is detected continuously for a specified period of time while the motor cooling fan/Rr (FM5) is ON. (LS-505) An error detection signal of FM7 is detected continuously for a specified period while the LS control board paper cooling fan motor (FM7) is ON. (LS-506)

Measures to take when alert occurs:

         The main body and the option stop immediately.                                                 
Estimated abnormal parts:
  • Paper cooling fan motor/Rr (FM5) (LS-505)
  • LS control board paper cooling fan motor (FM7) (LS-506)
  • 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 and replace it if an abnormality is found. (Wiring diagram: LS-505: 5-A, LS-506: 6-H). 
  3. Replace FM5 (LS-505).
  4. Replace FM7 (LS-506).
  5. Replace LSCB.
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