US 11,997,241 B2
Optical scanning device and image forming apparatus including optical scanning device
Atsuo Nakao, Sakai (JP); Hiroshi Yamamoto, Sakai (JP); Hidenori Sato, Sakai (JP); and Hiroaki Goi, Sakai (JP)
Assigned to SHARP KABUSHIKI KAISHA, Sakai (JP)
Filed by SHARP KABUSHIKI KAISHA, Sakai (JP)
Filed on Apr. 13, 2022, as Appl. No. 17/720,052.
Claims priority of application No. 2021-089332 (JP), filed on May 27, 2021.
Prior Publication US 2022/0385782 A1, Dec. 1, 2022
Int. Cl. G03G 15/04 (2006.01); G03G 21/16 (2006.01); H04N 1/10 (2006.01)
CPC H04N 1/1065 (2013.01) [G03G 15/04045 (2013.01); G03G 21/1666 (2013.01); H04N 1/1048 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An optical scanning device comprising:
a housing having a bottom surface, and side walls erected from the bottom surface and surrounding the bottom surface along a perimeter of the bottom surface; and
an fθ lens accommodated in the housing, wherein
one side wall of the side walls has, on an outer surface of the one side wall, a plurality of positioners that positions the optical scanning device relative to a main body of an image forming apparatus,
the bottom surface has a plurality of first bottom surface ribs respectively extending from the plurality of positioners toward the fθ lens in an oblique direction with respect to the one side wall having the plurality of positioners in a plan view, and
the plurality of first bottom surface ribs respectively extending from the plurality of positioners intersects with each other.