Service Call 620-687; Sc600 (Engine: Communication And Others) - Ricoh MP C2504 Field Service Manual

Service Call 620-687

SC600 (Engine: Communication and Others)

SC No. Type
SC620-01 D
Error Name/Error Condition/Major Cause/Solution
ADF Communication error 1 (DF3090 (D779)/ DF3100 (D3B0))
After ADF connection was recognized on startup, an error is detected.
(disconnection detection)
• ADF connection error
• ADF defection
• IPU board defection
• 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. Check if all connectors related to SPDF/ARDF are connected
securely. Reconnect the connectors if they are disconnected, or
loose.
2. Check the machine and ADF firmware version.
• Proceed to Step 3 if there is no new firmware released.
• Run the firmware update when there is a new firmware
released.
3. Check the harness. Replace the harness if it is disconnected, or
damaged.
4. Replace the IPU.
5. Check if there are any signs of a short circuit on the SPDF/ARDF
Main Board. If there are any defects, replace the board.
Service Call 620-687
853