Fixing device that can suppress variation in temperature, and image forming apparatus having the fixing device
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United States of America Patent
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Jan 9, 2018
Issued Date -
N/A
app pub date -
Jan 20, 2017
filing date -
Jan 20, 2017
priority date (Note) -
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Abstract
A fixing device includes a magnetic flux generation unit, an auxiliary heating body formed of material that generates heat from the magnetic flux generated by the magnetic flux generation unit, a rotatable fixing belt having opposing first and second ends in a direction of its rotational axis and a material that generates heat from the magnetic flux, a magnetic flux shield in contact with the auxiliary heating body and having first and second openings that expose the auxiliary body, the first and second openings being symmetrical with respect to a center point along the rotational axis between the first and second ends, a temperature sensor in contact with the auxiliary heating body through one of the first and second openings of the magnetic flux shield shielding member, and a driver that controls power supplied to the magnetic flux generation unit in accordance with signals from the temperature sensor.
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