Fixing device of an image forming apparatus
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United States of America Patent
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Dec 22, 2015
Grant Date -
Sep 17, 2015
app pub date -
Mar 13, 2015
filing date -
Mar 17, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A fixing device includes a tubular film; a heater including a substrate and a heat generating resistor, the heater having a first region on which the heat generating resistor is formed and a second region, located outside of the first region in a longitudinal direction of the substrate, on which the heat generating resistor is not formed; and a heat conductive member configured to contact a surface of the heater opposite to a surface of the heater that contacts the film, the heat conductive member having a higher heat conductivity than the substrate. The heat conductive member contacts the heater in a region extending across the first region and the second region, and an amount of heat generated by the heat generating resistor at its end portion is greater than that at its middle portion in the longitudinal direction.
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