Cleaning unit, process cartridge and image forming apparatus
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United States of America Patent
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Apr 5, 2016
Grant Date -
Mar 27, 2014
app pub date -
Sep 26, 2013
filing date -
Sep 27, 2012
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A cleaning unit for an image forming apparatus includes a frame; a cleaning blade; a first seal sealing between the frame and the blade, provided by injection molding into the frame adjacent to an axial end; and a second seal between the frame and the drum, provided opposing to the free end portion adjacent to the axial end portion, and the second seal having a L-like configuration with projection extending in a direction crossing with the axial direction outwardly beyond an end surface of the blade, wherein the first seal includes a base portion provided at a position inside of the end surface and extending in the crossing direction and an extension extending from the base portion in the axial direction, the extension having a free end portion compressed by the projection to seal between the projection and the frame.
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