Electromagnetic induction image heating apparatus having a current monitoring sensor
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United States of America Patent
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Dec 29, 2020
Grant Date -
Apr 2, 2020
app pub date -
Sep 27, 2019
filing date -
Sep 28, 2018
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Abstract
An image heating apparatus including a sleeve having divided heat generating layers, an exciting coil provided in an inside space of the sleeve, a magnetic core provided inside the exciting coil, a temperature detecting element opposing one of the divided heat generating layers, and a current monitoring sensor. An induced current is generated in the divided heat generating layers by passing an alternating current through the exciting coil, and the divided heat generating layers generate heat. An image on the recording material is heated by the divided heat generating layers. The current monitoring sensor is configured to monitor a current flowing through the above-described one of the divided heating generating layers.
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