Ricoh G133 Service Manual page 266

SC Table
No. Type
The machine gets RFID communication error even the toner cartridges
have not been installed in the machine.
Caused by noise
Turn the main power switch off and on.
No. Type
Memory address command error
The EGB does not receive a memory address command from the
controller 120 seconds after paper is in the position for registration.
687 D
1.
2.
3.
No. Type
689 D IH inverter communication error
G133
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Loose connection
Defective controller
Defective EGB
Check if the controller is firmly connected to the EGB.
Replace the controller.
Replace the EGB.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
When the machine turns on, recovers from the energy save mode
or front and right doors are opened and closed, a time out error for
communicating with the IOB occurs.
The IOB detects the break signal from the IH inverter after a
communication between the IOB and IH inverter has already been
detected.
The IOB fails to communicate with IH inverter three times after the
IOB has detected the break signal from the IH inverter.
Defective IOB
Defective IH inverter.
4-50 SM