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Error code C-0120 for Bizhub Press 1250 1250P 1052 Bizhub Pro 951

by sherlyn planas on December 27, 2023
Code: C-0120
 Classification: Main body: Drive
Cause: 
Paper exit conveyance motor (M31) speed abnormality.
The M31EM error detection signal is detected twice in succession within a specified period of time after M31 was turned ON.                                                                                         
Measures to take when alert occurs:                                                               The main body and the option stop immediately.                                               
Estimated abnormal parts: 
  • Paper exit conveyance motor (M31).
  • Printer control board (PRCB).
Correction: 

Turn OFF/ON the power switch (SW2) of the main body when releasing an abnormal condition.

 Note: "Please call service" is displayed on the touch panel.   

Solution:                                                                                                               

  1. Check the connector connection and the wiring between PRCB and the motor, and repair it if any abnormality.
  2. Check the I/O drive and the coupling of the gear, and repair/replace it if any abnormality. (Wiring diagram: Main body (3/4): 22-P)
  3. Replace M31
  4. Replace PRCB
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