the high temperature using the halogen heater. The toner is fixed on the paper by the heat and pressure through the fixing part with the image. The surface of the heat roller is rosined by Teflon and lubricated to prevent from attaching the toners. The press roller is made of silicon, and its spring compresses the melted toner. Fixing Part
The fixing part becomes high temperature, so the thermistor and the thermal fuse are provided.
1. Thermistor The thermistor touches the heat roller and check the temperature to feed back to the control circuit. The surface temperature should be kept 160 °C while printing. 2. Thermostat The thermostat takes the same role with the thermal fuse. The thermostat is located near the heat roller, and it turns OFF the power when the temperature around the thermostat becomes over 135°C.