: The main controller board sends out a signal but does not get an answer back from the smart operation panel.
When the SC673-10 Ricoh error occurs, you may notice the following symptoms: sc673-10 ricoh error
A malfunction in the controller board's communication circuit or a corrupted firmware state. : The main controller board sends out a
Disconnect any external USB drives, SD cards, or IC card readers attached to the panel. sc673-10 ricoh error