To reset error, enter SP mode by pressing: Clear (yellow) button, 1 0 7, and press and hold the Stop (orange) button for 3 seconds then switch off and on the copier.
If the error is still there, please check the following in the fuser unit;
- Check and clean or replace the possible defective thermistors or out of position.
- Fusing heaters open circuit.
- Thermostats for open circuit.
- Power supply unit.
Good luck and please rate me, thanks.