Ricoh M065 - Page 368

SC Tables
M065/M066 3-58 SM Appendix
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
990
CTL
D
Software performance error
The software makes an unexpected operation.
 Defective software
 Defective controller
 Software error
1. Turn the main switch off and on.
2. Reinstall the controller and/or engine main firmware.
 See Note 1 at the end of the SC table.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
991
CTL
C
Software continuity error
The software has attempted to perform an unexpected operation.
However, unlike SC 990, the object of the error is continuity of the
software.
 Software program error
 Internal parameter incorrect, insufficient working memory.
This SC is not displayed on the operation panel (logging only).
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
992
CTL
D
Undefined error
Defective software program
 An error undetectable by any other SC code occurred
Print the "Logging Data" with SP5990-004 and then check the SP7990.
If 498-Engine is found in the SP7990;
1. Check the harness connection of the temperature/humidity sensor.
2. Replace the temperature/humidity sensor.