Sc673-10 Ricoh Error -

Never turn off the machine using the main power switch while it is processing a job or updating firmware. Always use the “Shutdown” option on the touchscreen when possible, or wait for the hard drive to idle.

A sudden power loss, brownout (low voltage), or improper shutdown during a firmware update can corrupt the panel’s bootloader. The controller sends a command, but the panel firmware returns garbage data → SC673-10.

The SC673-10 Ricoh error is intimidating but rarely signals catastrophic hardware failure. In our experience, over 70% of cases are resolved by updating firmware or reseating the Flat Flex cable. Only a small percentage require board-level replacement.

By understanding that this error is fundamentally a handshake failure between the controller and the operation panel, you can methodically isolate the cause—whether it’s software, cabling, power, or hardware. sc673-10 ricoh error

Quick Recap Checklist:

Bookmark this guide, keep a spare FFC cable in your parts inventory, and always check for Ricoh TSBs before ordering expensive components. With patience and a logical workflow, you can conquer the SC673-10 error and restore your Ricoh MFP to full productivity.

Have you encountered SC673-10 on an unusual Ricoh model? Share your experience in the comments below, or contact our support team for model-specific part numbers and firmware links. Never turn off the machine using the main

Commonly seen on:

Some Ricoh models store panel configuration data on an SD card or NVRAM. If this storage becomes corrupted (e.g., due to improper shutdown), the panel cannot fetch its boot parameters.

If you want, tell me the exact Ricoh model number and whether any recent service was performed; I can provide model-specific service-mode steps and part numbers. Bookmark this guide, keep a spare FFC cable

When you turn on the Ricoh MFP, the main Controller Board (the “brain”) and the Operation Panel (the “face” with the touchscreen) perform a handshake. They exchange data packets to confirm they are compatible and functioning.

The SC673-10 error occurs when the Controller Board sends a startup signal to the Operation Panel, but the Operation Panel does not respond correctly within a specific timeout period. The -10 sub-code typically indicates that the failure happened during the initial boot sequence before the panel’s operating system fully loads.

This is the most common cause, especially after a firmware update. If the Operation Panel firmware is corrupted or does not match the controller firmware version, the handshake fails. The -10 sub-code is particularly sensitive to timing issues introduced by buggy firmware.