Ricoh MP C2504 Field Service Manual page 887

6. Troubleshooting
SC No.
SC633-00
SC No.
SC634-00
SC No.
SC635-00
878
Type Error Name/Error Condition/Major Cause/Solution
D Counter device error 2
After communication was established, the controller received the brake
signal from the accounting device.
Serial line between the optional counter device, the relay board and
copier control board is disconnected or damaged.
• Turn the main power off/on.
• Check the serial communication line.
Type Error Name/Error Condition/Major Cause/Solution
D Counter device error 3
A backup RAM error was returned by the counter device.
Counter device control board or the backup battery of counter device
defective
• Replace the counter device control board.
• Replace the backup battery.
Type Error Name/Error Condition/Major Cause/Solution
D Counter device error 4
A backup battery error was returned by the counter device.
Counter device control board or the backup battery of counter device
defective
• Replace the counter device control board.
• Replace the backup battery.