If the machine boots into service mode or allows partial menu navigation, check the system parameter settings.
Static or poorly seated RAM/NVRAM modules on the controller board can cause boot failures that mimic panel communication errors.
In some Ricoh models, a dead lithium battery on the controller board (specifically the NVRAM battery) can cause boot issues. If your machine is older (5+ years), this battery may need replacing. However, this usually throws different codes, but it is worth noting.
: The system settings within the software do not match what the hardware expects. Specifically, a setting known as SP5-748-201 is turned off when it needs to be turned on. 🛠️ Common Causes of the Error
The sub-board inside the display housing may be dead. sc673-10 ricoh error
Did this error occur after a or firmware update ?
Ensure they are firmly seated. If the device has been moved recently, these cables can often wiggle loose.
The physical wiring harness connecting the operational panel to the controller board may be unplugged, pinched, or damaged.
Unplug the cables, check the pins for dust or damage, and . If the machine boots into service mode or
Exit the SP mode menu and restart the machine using the main power switch. Step 3: Reseat Internal Interface Cables
Several factors can interrupt the data flow between the controller and the operation panel:
Enter the Ricoh Service Program mode (typically by pressing Reset or Stop , entering 8 0 6 1 8 2 , and holding down C or Clear ). Select on the screen.
Swap out the operation panel harness with a new one to rule out hidden wire breaks. If your machine is older (5+ years), this
The is a specific service code that indicates a communication breakdown between the smart operation panel and the machine's main controller board .
The error is rarely a false alarm. It almost always points to a physical connection issue or a dying hard drive.
: Turn the main power switch off, wait at least 30 seconds, and turn it back on. This often clears temporary communication glitches.
Commonly seen on: