Fixing device having a support unit supporting a rotation unit fixing a toner image onto a sheet so as to rotate by first and second protrusions
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United States of America Patent
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May 2, 2017
Grant Date -
Jul 3, 2014
app pub date -
Dec 27, 2013
filing date -
Dec 27, 2012
priority date (Note) -
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Abstract
A heating device suppresses a bias force toward a center in a longitudinal direction (center in a rotation axis direction) of a fixing film serving as a rotation member, thereby preventing film overlapping and sheet wrinkles. The sliding friction resistance in the rotation axis direction of a fixing film between the fixing film and a protrusion is set so that at least the sliding friction resistance in an end part in the rotation axis direction is larger than the sliding friction resistance in a region closer to a central part in the rotation axis direction than the end part.
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