) often points to a where a signal is not received within a specified window. Core Causes
If the basic steps fail, you need to move to advanced servicing. You will need access to Ricohโs or SD card firmware . sc673-10 ricoh error
: Perform a "soft reset" by turning the main power switch off, waiting 60 seconds, and turning it back on. Communication Interruption ) often points to a where a signal
| Model Series | SC673-10 Likely Cause | Unique Fix | | :--- | :--- | :--- | | | Loose ribbon cable at the panel hinge (design flaw). | Add a small foam spacer behind the FFC connector. | | MP C2004 / C3004 / C3504 | Corrupted NVRAM on the operation panelโs sub-board. | Replace only the sub-board (PCB5), not the whole screen. | | MP C4504 / C5504 / C6004 | Power supply dips (5V rail to panel). | Check connector CN123 on PSU; reseat or replace PSU. | | Pro 8100 / 8200 series | Firmware mismatch after controller upgrade. | Force downgrade to prior stable version via SD card. | : Perform a "soft reset" by turning the