Power the machine off, unplug it for 60 seconds, and restart it to clear temporary glitches.
The error is often triggered by physical or electrical issues within the fusing unit:
: Many Ricoh SC errors can be temporarily bypassed or reset via the System SP mode: Press the Clear Modes (Yellow) key. Type 107 on the keypad.
If the code returns immediately, the or the HP Sensor may require replacement.