Fixing device and image forming apparatus capable of suppressing deformation of fixing belt and excessive adhesion of lubricant
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United States of America Patent
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Jul 23, 2024
Grant Date -
Oct 5, 2023
app pub date -
Mar 28, 2023
filing date -
Mar 28, 2023
priority date (Note) -
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status (Latency Note)
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Abstract
A fixing device includes a pressure member, and a holder. The pressure member forms a pressure area between the pressure member and a fixing belt. The holder is provided inside the fixing belt, has a sliding surface in contact with an inner peripheral surface of the fixing belt via a lubricant, and holds a heater for heating the fixing belt. The holder includes a plurality of slits and a blocking portion. The plurality of slits are arranged in an axial direction on the sliding surface upstream of the pressure area in a passing direction of a medium and guide movement of the lubricant from upstream to downstream in a rotational direction of the fixing belt. The blocking portion restricts an outflow of the lubricant from each of the slits and restricts a fall of the fixing belt into each of the slits.
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