Error code C-0121 for Bizhub Press 1250 1250P 1052 Bizhub Pro 951
Code: C-0121
Classification: Main body: Drive
Cause:
Paper exit motor (M20) speed abnormality.
The M20EM error detection signal is detected twice in succession within a specified period of time after M20 was turned ON.
Measures to take when alert occurs: The main body and the option stop immediately.
Estimated abnormal parts:
- Paper exit motor (M20).
- 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:
- Check the connector connection and the wiring between PRCB and the motor, and repair it if any abnormality.
- Check the I/O drive and the coupling of the gear, and repair/replace it if any abnormality. (Wiring diagram: Main body (3/4): 21-P)
- Replace M20
- Replace PRCB