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10-359 Heat Roll Control Thermistor Failure RAP
The Heat Roll Control Thermistor detected an abnormal resistance value continuously for more than 1500 msec (Heat Roll Control Thermistor disconnected).
The resistance of the Thermistor should be in the range of 0.78K Ohms when hot to 150K Ohms when cool (room temperature). Note the measurement if it is in specification.
Check the Heat Roll Control Thermistor for cleanliness, damage and excessive wear at the point where the Thermistor contacts the Heat Roll. If the surface of the Thermistor is worn, replace the Heat Roll Control Thermistor .Inspect the surface of the Heat Roll for excessive wear due to the Thermistor. Replace the Heat Roll if necessary.
Check the Drawer connector at the rear of the Fuser for damaged pins. Check the mating connector on the IOT, and ensure that the mounting plate for the IOT connector is not bent or misaligned.
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