Ricoh D037 Service Manual page 461

Rev. 04/29/2011
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
center with a dial up connection.
Caused by a software bug
No action required because this SC does not interfere with operation of
the machine.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
NVRAM error
Retry of NVRAM communication fails three times after the machine has
detected the NVRAM error.
669 D
Caused by noise
Turn the main power switch off and on.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Engine start up error
The ready signal from the engine board is not detected.
CTL
670
D
Defective engine board.
Replace the engine board.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Engine board mismatch error
Engine board and controller mismatch detected.
Wrong engine board installed.
CTL
671
Wrong controller board installed.
D
Check the type of engine board and controller board.
1. Replace the BCU.
2. Replace the controller board.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Controller-to-operation panel communication error at startup
After powering on the machine, the communication circuit between the
CTL controller and the operation panel is not opened, or communication with
672
D controller is interrupted after a normal startup.
Controller stall
Controller board installed incorrectly
SM Appendix 4-39
SC Tables
D037/D038/D040/D041