Ricoh IM C400F

SC3xx: Image Processing
SM 6-25 D0CA/D0C9/D0C8/D0CB
Troubleshooting
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
SC396-00 D Drum Motor (K) Error
SC397-00 D Drum Motor (CMY) Error
Each lock signal is observed at 100ms intervals during motor ON, and the
high level is detected 20 times consecutively.
• PCDU overload
• Connector disconnected
• Drum Motor (K) failure (SC396)
• Drum Motor (CMY) failure (SC397)
• Harness broken
• Defective BiCU (PCB1)
• PCDU torque increased
Check if the SC occurs by turning the power OFF then ON. If the SC occurs
again, do the following steps. Check if the SC reoccurs by cycling the power
after each step.
1. Replace the Drum Motor (K) (M11) (SC396)
2. Replace the Drum Motor (CMY) (M10) (SC397)
3. Reconnect the connector.
4. Replace the harness for the Drum Motor (M10,M11).
5. Replace the BiCU (PCB1).
6. Replace the PCDU.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
SC396-01 D Drum Motor (K) Error: When Motor is Deactivated
SC397-01 D Drum Motor (CMY) Error: When Motor is Deactivated
Each lock signal is observed at 100ms intervals during motor OFF (including
the period between turning the main power ON and the motor ON), and the
low level is detected 20 times consecutively.
• Drum Motor (K) failure (SC396)
• Drum Motor (CMY) failure (SC397)
• Disconnected harness for the Drum Motor (M10,M11)
• Defective BiCU (PCB1)
Check if the SC occurs by turning the power OFF then ON. If the SC occurs
again, do the following steps. Check if the SC reoccurs by cycling the power
after each step.
1. Replace the Drum Motor (K) (M11) (SC396)
2. Replace the Drum Motor (CMY) (M10) (SC397)
3. Replace the harness for the Drum Motor (M10,M11).
4. Replace the BiCU (PCB1).