Heat-Fixing Mechanism - Brother IntelliFax-4750 Service Manual

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2.2.3

Heat-fixing mechanism

As the paper passes between the heater roller and the pressure roller in the heat-fixing unit, the
heater roller fuses the toner on the paper.
The controller monitors the internal resistance of the heater thermistor to keep the surface
temperature of the heater roller constant by turning the halogen heater lamp on and off.
III - 8

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