Sc673-10 Ricoh Error Page

The Operation Panel connects to the Controller Board via a Flat Flex Cable (FFC) and sometimes additional wire harnesses. Over time, this cable can:

A loose or damaged FFC disrupts the initial handshake, triggering SC673-10.

The SC673-10 error on Ricoh copiers/printers indicates a scanner communication or CCD (charge-coupled device) read issue — the scanner unit is failing to communicate properly with the main controller or the scanner sensor is producing invalid data. sc673-10 ricoh error

Using a multimeter, check the voltage at the power supply output pins going to the controller board. Look for:

Any fluctuation greater than ±5% may cause intermittent handshake failures. The Operation Panel connects to the Controller Board

Commonly seen on:

Ricoh SC codes follow a pattern: SC67x = Controller-Panel interface. The suffix -10 is critical: A loose or damaged FFC disrupts the initial

| Component | Meaning | |-----------|---------| | SC67 | Panel communication subsystem | | 3 | Sub-error: Protocol or handshake mismatch (not physical disconnection) | | -10 | Specific fault: "Panel boot timeout / Identification error" |

When the controller boots, it sends a WHO_ARE_YOU? command to the panel. The panel must reply with its model ID and firmware version within a strict window (typically 15–30 seconds). -10 means the controller received no valid reply or a malformed reply during that window. The controller then shuts down the panel power (via the 5V/12V enable line) and logs SC673-10.