Tools required: JIS screwdriver, 99% isopropyl alcohol, fiberglass pen (or soft eraser), multimeter with continuity mode, OEM firmware SD card, anti-static mat.
communication failure between the controller board and the operation panel sc67310 ricoh error extra quality
Loose or damaged USB or interface cables connecting the panel to the main frame. Tools required: JIS screwdriver
If you have access to Service Mode, check SP5-748-201 (Cheetah Panel Connection Setting). Ensure this value is set to 1 . 99% isopropyl alcohol
between the controller and the operation panel during the startup sequence