SC6xx: Communication
SM 6-51 D0CA/D0C9/D0C8/D0CB
6.7 SC6XX: COMMUNICATION
SC No. Type Error Name/Error Condition/Major Cause/Solution
SC621-00 D Finisher Communication Error
An error signal is detected during communication between the finisher and the
main machine.
• Connection error between finisher and main machine.
• The finisher firmware is not properly updated.
• The BiCU firmware is not properly updated.
• BiCU (PCB1) is defective.
• Finisher Main Board (PCB1) is defective.
• Noise contamination
Check if the SC occurs by turning the main 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. Reconnect the finisher interface cable.
2. Check the machine and finisher firmware version. Run the firmware
update when there is a new firmware released.
3. Replace the harness.
4. Replace the BiCU (PCB1).
5. Replace the finisher Main Board (PCB25).
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
SC622-00 D Optional Paper Feed Unit 1 (Paper Tray 2) Communication Error
An error signal is detected during communication between the optional paper
feed unit and the main machine.
• Optional Paper Feed Unit 1 Main Board (PCB1) is defective.
• BiCU (PCB1) is defective.
• Connection error between Paper Feed Unit 1 and main machine.
Check if the SC occurs by turning the main 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 Paper Feed Unit 1 Main Board (PCB1).
2. Replace the BiCU (PCB1).
3. Reattach the Paper Feed Unit 1 to the machine.
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