Fuser Unit - Samsung CLP-775ND Series Service Manual

2. Product spec and feature

2.2.4.2. Fuser Unit

This unit consists of Heat Roller, a Thermostat, and Thermistors, etc. It fuses the toner that was transferred by the transfer
roller onto the paper, by applying pressure and high temperature to complete fusing process.
•
Fusing Type : [Dual Lamp Heating, 800W/500W]
•
Heat Roller : Pipe Type (Lamp Inside)
1) Thermostat
When a heat lamp is overheated, a Thermostat cuts off the main power to prevent over-heating.
• Thermostat Type : Non- Contact type
2) Thermistor
It is a temperature detecting sensor.
3) Fuser Belt
The fuser belt transfers the heat from the lamp to apply a heat on the paper. The surface of the fuser belt 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 and is permanently fused.
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