Ricoh D131 Service Manual page 505

SC600: Data Communication
SC626-02 D
SC632 B
Counter device error 2
After communication was established, the controller receivee the
brake signal from the accounting device.

SC633 B



D131/D132/D133
BICU, LCT communication error: Timeout error
After 1 data frame is sent to the LCT, an ACK signal is not received
within 100 ms, and is not received after 3 retries.

LCT connection to main machine loose, broken, defective

LCT control board defective

BCU defective

Serial line connection unstable

External noise on the line
Counter device error 1
After 3 attempts to send a data frame to the optional counter device
via the serial communication line, no ACK signal was received
within 100 ms.

Serial line between the optional counter device, the relay board
and copier control board is disconnected or damaged.

Make sure that SP5113 is set to enable the optional counter
device.

Check if the setting of the SP5113 is correctly set.

Check the connection between the main machine and optional
counter device.
Serial line between the optional counter device, the relay board
and copier control board is disconnected or damaged.
Make sure that SP5113 is set to enable the optional counter
device.
Confirm that the setting of SP5113 is correct.
Check the connection between the main machine and optional
counter device.
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CTL
CTL
SM Appendix