Light scanning apparatus having optical box on which a beam splitter is disposed, and image forming apparatus including the same
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United States of America Patent
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Aug 19, 2014
Grant Date -
Oct 31, 2013
app pub date -
Apr 19, 2013
filing date -
Apr 26, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A light scanning apparatus, including: a light source configured to emit a light beam; a beam splitter configured to split the light beam into a first and a second light beams; a rotary polygon mirror configured to deflect the first light beam to scan a photosensitive member; a motor configured to rotate the rotary polygon mirror; a first lens configured to guide the first light beam to the photosensitive member; an optical sensor configured to receive the second light beam; a second lens configured to condense the second light beam on the optical sensor; and an optical box has a wall standing from a bottom surface between a region in which the rotary polygon mirror and the motor are disposed and a region in which the second lens is disposed, and a height of the wall from the bottom surface is higher than a height of the rotary polygon mirror.
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