This error specifically denotes a or receipt failure between the machine’s brain (the controller) and its interface (the operation panel). This usually happens during the power-on sequence if the two components cannot "shake hands" properly. Common Causes
A hardware defect in the operation panel that prevents it from sending or receiving data correctly. Step-by-Step Troubleshooting Guide 1. Perform a Hard Power Cycle sc673-10 ricoh error
How to reset Ricoh Error Code sc542 sc547 sc546 sc548 problem -copiers This error specifically denotes a or receipt failure
If you are comfortable opening access panels (as suggested in some Ricoh Maintenance Guides ), ensure the interface cables are firmly seated on both the controller board and the operation panel. Step-by-Step Troubleshooting Guide 1
The controller board itself may have a faulty component or corrupted firmware preventing a proper handshake.
The controller board failed to start up within the allotted time after the power was turned on.
Unplug the machine from the wall outlet and wait for at least . Plug it back in and restart. 2. Check Physical Connections