Ricoh MP C2504 Field Service Manual page 863

6. Troubleshooting
SC No.
SC620-02
SC No.
SC620-03
854
Type Error Name/Error Condition/Major Cause/Solution
D ADF Communication error 2 (DF3090 (D779)/ DF3100 (D3B0))
After ADF connection was recognized on startup, an error is detected.
(Retry out due to communication error)
• ADF connection error
• ADF defection
• IPU board defection
• Noise contamination
Follow the solution for SC620-01.
Type Error Name/Error Condition/Major Cause/Solution
D ADF Communication error 3 (DF3100 (D3B0))
SC is displayed when CIS initialization complete command is not
received for certain time.
• ADF connection error
• ADF defection
• IPU board defection
• Noise contamination
• Unsupported ADF is connected
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. Check if all connectors related to SPDF/ARDF are connected
securely. Reconnect the connectors if they are disconnected, or
loose.
2. Check the harness. Replace the harness if it is disconnected, or
damaged.
3. Check if there are any signs of a short circuit on the SPDF Main
Board. If there are any defects, replace the board.