No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
- -
While the IOB communicates with an optional unit, an SC code is displayed if one
of following conditions occurs.
• The IOB receives the break signal which is generated by the peripherals only
just after the main switch is turned on.
• When the IOB does not receive an OK signal from a peripheral 100ms after
sending a command to it. The IOB resends the command. The IOB does not
receive an OK signal after sending the command 3 times.
• Cable problems
• IOB problems
• BICU problems
• PSU problems in the machine
• Main board problems in the peripherals
1. Check if the cables of peripherals are correctly connected.
2. Replace the PSU if no power is supplied to peripherals.
3. Replace the IOB or main board of peripherals.
4. Replace the BICU.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
623 D
2nd Paper Bank communication error
This SC is not issued for this machine.
When a communication error signal between the 1st paper bank and 2nd paper
bank is received.
• Loose connector
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
632
CTL
B
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.
3. Appendix: Service Call Conditions
78
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