SC9xx: Others
SM 6-121 D0CA/D0C9/D0C8/D0CB
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
3. Replace the Paper Feed Clutch (CL9).
4. Replace the BiCU (PCB1).
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
SC940-53 C Bypass Feed Clutch (CL7) Malfunction (during operation)
This SC occurs if the value of the register of the error detection signal is zero
three times in a row when the Bypass Feed Clutch (CL7) is operating.
• The Bypass Feed Clutch (CL7) driver is malfunctioning.
Check if the SC occurs by executing two-sided printing after turning the main
power OFF and then back ON. If the SC occurs again, do the following steps.
Check if the SC reoccurs by cycling the power after each step.
1. Reconnect the connector to the BiCU (PCB1).
Take care not to bend the connector pins when reconnecting the
connector.
2. Reconnect the relay connector and Bypass Feed Clutch (CL7) connector.
Take care not to bend the connector pins when reconnecting the
connector.
3. Replace the Bypass Feed Clutch (CL7) .
4. Replace the BiCU (PCB1).
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
SC940-54 C Bypass Tray Lift Clutch (CL1) Malfunction (during operation)
This SC occurs if the value of the register of the error detection signal is zero
three times in a row when the Bypass Tray Lift Clutch (CL1) is operating.
The Bypass Tray Lift Clutch (CL1) driver is malfunctioning.
Check if the SC occurs by executing two-sided printing after turning the main
power OFF and then back ON. If the SC occurs again, do the following steps.
Check if the SC reoccurs by cycling the power after each step.
1. Reconnect the connector to the BiCU (PCB1).
Take care not to bend the connector pins when reconnecting the
connector.
2. Reconnect the relay connector and Bypass Tray Lift Clutch (CL1)
connector.
Take care not to bend the connector pins when reconnecting the
connector.
3. Replace the Bypass Tray Lift Clutch (CL1).
4. Replace the BiCU (PCB1).
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