Image forming apparatus including a shutter member
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United States of America Patent
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Apr 5, 2016
Grant Date -
Mar 26, 2015
app pub date -
Sep 23, 2014
filing date -
Sep 25, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
An optical scanning apparatus and an image forming apparatus including the optical scanning apparatus, the optical scanning apparatus includes a dust-proof shutter having an opening portion. The opening portion has a side-surface opening portion and a top-surface opening portion. The side-surface opening portion is formed in a side surface of the dust-proof shutter. A cleaning member used for cleaning a dust-proof glass is inserted through the side-surface opening portion. The top-surface opening portion guides a moving direction of the cleaning member inserted through the side-surface opening portion, to a direction along a longitudinal direction of the dust-proof glass. When the dust-proof shutter is located at a first position, a light beam passed through the dust-proof glass passes through the top-surface opening portion.
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