IMAGE HEATING APPARATUS AND IMAGE FORMING APPARATUS
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United States of America Patent
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Jul 24, 2017
filing date -
Jul 28, 2016
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Abstract
An apparatus includes a first and second driving circuits that energize a first and third heat generating blocks; a first and second temperature detection members that detect each temperature of the first and third heat generating blocks; a control portion that controls the first and second driving circuits according to at least one of the temperatures detected by the first and second temperature detection members; and a connection switching portion that selectively connects any one of the first and second driving circuits to a second heat generating block according to a switching instruction from the control portion. The control portion controls energization of the second heat generating block together with a heat generating block which is energized by the driving circuit connected to the second heat generating block.
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