Ricoh B230 Service Manual page 303

No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
RFID: Unit check error
The machine gets RFID communication error even the toner cartridges
have not been installed in the machine.
683 B
Caused by noise
1. Turn the main power switch off and on.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Memory address command error
The BICU does not receive a memory address command from the
controller 120 seconds after paper is in the position for registration.
Loose connection
687 D
Defective controller
Defective BICU
1. Check if the controller is firmly connected to the BICU.
2. Replace the controller.
3. Replace the BICU.
SM 4-63 B230/B237