An error on a Ricoh device indicates a communication timeout between the controller board and the operation panel during startup. Essentially, the "brain" of the printer isn't talking to the touch screen correctly. Common Causes
Internal component failure within the touch screen assembly can prevent it from responding to the controller. sc673-10 ricoh error
Change the value to and press the # key to save the changes. An error on a Ricoh device indicates a
error is a communication failure between the device's main controller and the Smart Operation Panel sc673-10 ricoh error
Unplug the harness connectors from both ends (the controller board side and the back of the operation panel). Inspect the pins for bends, corrosion, or breakage.