Ricoh Aficio MP C2050 Service Manual

SC Tables
D037/D038/D040/D041 4-36 SM Appendix
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
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.
B
 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.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Counter device error 2
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.
633
CTL
B
 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.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Counter device error 3
A backup RAM error was returned by the counter device.
634
CTL
B
 Counter device control board defective
 Backup battery of counter device defective
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Counter device error 4 635 CTL
B
A backup battery error was returned by the counter device.

Ricoh Aficio MP C2050 Specifications