Description: Error in the low temperature of the fixing unit
Detects the temperature detected by the sub thermistor is abnormally low (below 70 deg C) for 1 sec continuously while adjusting print temperature.
Remedy: Check on connection of the sub thermistor/thermo switch, Replace the fixing unit, Check on a break in the heater, Replace the cover switch, Replace the main power supply PCB, Replace the DC controller PCB To recover from the error: In service mode COPIER>FUNCTION>CLEAR >ERR