Heat fixing device having cooling fan and pressing roller with heat conductive filler
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United States of America Patent
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Feb 24, 2015
Grant Date -
Jan 10, 2013
app pub date -
Jul 2, 2012
filing date -
Jul 7, 2011
priority date (Note) -
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Abstract
A heat fixing device includes a rotatable member for heating, a pressing roller configured to form a fixing nip portion that nips and conveys a recording material bearing a toner image, and a cooling fan configured to cool a recording material non-passing region in the rotatable member for heating in a direction orthogonal to a recording material conveying direction, wherein the pressing roller includes a rubber layer, between a cored bar and a release layer, containing a needle-shaped heat conductive filler oriented in a roller axis direction.
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