| http://www.w3.org/ns/prov#value | - The light scanning apparatus is an apparatus that scans a scanned face with a light beam (laser beam) emitted by a light source, and includes a light source unit 18 provided with a light source, a cylindrical lens 13, a polygon mirror 14 that functions as a deflecting unit, a scanning optical system 15 including two plastic scan lenses and one reflecting mirror 153, and a photosensitive drum 16 of
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