Dell 1135N Service Manual - Page 27
Fuser - thermostat
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Product specification and feature 2.2.3.4 Fuser It is consists of a halogen lamp, heat roller, pressure roller, thermistor and thermostat. It fuses the toner on to the paper by heat and pressure to complete the printing job. 1) Thermostat When a heat lamp is overheated, a Thermostat cuts off the main power to prevent over- heating. - Thermostat Type : Non- Contact type THERMOSTAT - Control Temperature : 170ଇ Gଇ 2) Thermistor It is a temperatrue detecting sensor. - Temperature Resistance : 7 (180 ଇ ) 3) Heat roller The heat roller transfers the heat from the lamp to apply a heat on the paper. The surface of a heat roller is coated with Teflon, so toner does not stick to the surface. 4) Pressure roller A pressure roller mounted under a heat roller is made of a silicon resin, and the surface also is coated with Teflon. When a paper passes between a heat roller and a pressure roller, toner adheres to the surface of a paper permanently. 5) Halogen Lamp - Voltage 120 V : 115 ± 5 % 220 V : 230 ± 5 % - Capacity : 750 Watt ± 25 W 2-1 Service Manual