Ricoh B230 Service Manual page 300

No. Type
EEPROM error
Retry of EEPROM communication fails three times after the machine
has detected the EEPROM error.
669 D
Turn the main power switch off and on.
No. Type
No response from BICU at power on
When the main power is turned on or the machine starts warming up
from energy-saving mode, the controller does not receive a command
signal from the BICU.
CTL
670
D
1.
2.
3.
B230/B237
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Caused by noise
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Loose connection
Defective controller
Defective BICU
Check the connection between the BICU and controller.
Replace the controller.
Replace the BICU.
4-60 SM