Ricoh MP C6502SP Field Service Manual page 1190

5. Troubleshooting
SC No.
SC641-00
SC No.
SC650-01
1188
Level Error Name/Error Condition/Major Cause/Solution
Communication error between BCU and Controller board.
Controller board does not respond after BCU tries to communicate three
times.
• Controller board software error
D
• Connect error between BCU and Controller board
• Engine board software error
• Check connections between Controller board and BCU.
• Turn the main switch off and on.
Level Error Name/Error Condition/Major Cause/Solution
Remote Service Modem Communication Error (Dialup authentication
failure)
• An error related to communication (dialup connection, modem
board etc.) using the RC Gate Type M was detected or an error that
prevents RC Gate operation was detected at power on.
• Displayed only when an error is detected while RC Gate is
operating.
B
• SC is not issued if an error occurs during RC Gate installation
(because it can be referenced using SP).
Dialup authentication failure
Check the following SPs.
• SP5-816-156
• SP5-816-157