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Controlling Fusing Temperature
After the main power switch is on, the fusing heater is on.
When the MAIN MOTOR drives, if there is no output signal at 125˚C, it stays READY at
175˚C.
If there is an output signal, the fusing temperature stays at 180˚C to fuse the paper.
(180˚C is the default termperatue for the standard paper)
The fusing temperature is set different per each paper media and can be changed in case
the customer want to within a limited range).
When an error occurs or power save mode is on, the power for Heater will be off.
Preventing Overheat
If the temperature of the Fusing roller goes up higher than 235C, the CPU blocks the
power to the fuser lamp and generates an ERROR at the same time.
In preparation for failing to prevent thermister from overheating, two THERMOSTAT are
added in parallel to the normal ground line for the fuser lamp.
THERMOSTAT starts to operate and blocks the power which is suppled to the fuser lamp
and generates an ERROR to stop the machine at the same time.
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