101
OP-P1/MF1 Training
Slide 101
Main Components
The hot roller (1) contains the fusing lamp (2) (a halogen lamp).
The hot roller and pressure roller (3) are pressed together by two strong
springs [A] attached to arms [B] at the left and right ends of the fusing
unit.
The thermistor (4) touches the surface of the hot roller and constantly
monitors the temperature of the hot roller. The machine uses this to
control to on/off timing of the fusing lamp to keep the temperature of the
hot roller constant and at the correct level for fusing.
The thermostat (5) above the hot roller monitors the temperature around
the hot roller and shuts down the machine if it detects that the hot roller
has overheated. This is a safety feature that prevents a fire if the fusing
unit malfunctions.
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