: Remove the plastic covers protecting the articulating arm of the operation panel. Look for pinched or severed wires that could disrupt data lines.

Leave the machine completely unplugged for at least 5 to 10 minutes.

If the reset does not fix the issue, physical components likely need inspection:

[Control Panel Assembly] <--- USB / FFC Cables ---> [Main Controller Board (CTL)] | Checks Parameter: SP5-748-201 Adjusting SP5-748-201

If applicable to your model, carefully remove the controller board or open its access panel. Locate the and the NVRAM/ROM chips .

: For advanced users, ensure the controller board is securely pushed into its slot on the back of the machine. When to Call a Technician

between the controller board and the operation panel, typically occurring during startup or after a power-save recovery.

Verify the value. If it is set to 0 (Disabled), change it to .

If you have tried the above steps and are still experiencing issues, or if you would like a certified technician to handle the firmware update, I can help you find local Ricoh service providers. Are you seeing any other error codes on the screen? Did this happen after a firmware update or a power outage? Various 03 Models Sc673 - Copytechnet.com