Data Communication - Ricoh B064 Service Manual

Data Communication

SC No.
601 C Communication error between BCU and scanner unit
• BCU does not communicate with
scanner unit within 0.8 s after
power on.
• BCU does not detect a break
signal after connecting to
scanner unit.
• Communication error detected 3
times.
610 C BCU # ADF communication/timeout abnormal
After 1 data frame is sent to the
ADF, an ACK signal is not received
within 100 ms, and is not received
after 3 retries.
611 C BCU # ADF communication/break reception abnormal
During communication a break
(Low) signal was received from the
ADF.
612 C BCU # ADF communication/command abnormal
An command that cannot be
executed was sent from the main
machine to the ADF.
620 C BCU # ADF communication/timeout error
After 1 data frame is sent to the
finisher MBX, an ACK signal is not
received within 100 ms, and is not
received after 3 retries.
621 C BCU # Finisher communication/break error
During communication with the
finisher MBX, the BCU received a
break (Low) signal from the finisher.
623 C BCU # Tray 1~3 communication/timeout error
After 1 data frame is sent to the
trays, an ACK signal is not received
within 100 ms, and is not received
after 3 retries.
624 C BCU # Tray 1~3 communication/break reception error
During communication with the
finisher trays, the BCU received a
break (Low) signal.
626 C BCU # LCT communication/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.
627 C BCU # LCT communication/break reception error
During communication with the
LCT, the BCU received a break
(Low) signal.
630 D CSS (RSS) communication error between line adapter and CSS center
Japan only
SM
Symptom
4-23
SERVICE CALL CONDITIONS
Possible Cause
• Serial line connection unstable
• External noise on the line
• Serial line connection unstable
• External noise on the line
• Serial line connection unstable
• Harness disconnected or defective
• A software error, result of an abnormal
procedure.
• Serial line connection unstable
• External noise on the line
• Serial line connection unstable
• External noise on the line
• Serial line connection unstable
• External noise on the line
• Serial line connection unstable
• External noise on the line
• Serial line connection unstable
• External noise on the line
• Serial line connection unstable
• External noise on the line
B064/B065