US 11,789,376 B2
Optical scanning device and image forming apparatus
Chihiro Shirakawa, Shizuoka (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Aug. 27, 2021, as Appl. No. 17/458,788.
Claims priority of application No. 2020-161033 (JP), filed on Sep. 25, 2020.
Prior Publication US 2022/0100119 A1, Mar. 31, 2022
Int. Cl. G03G 15/04 (2006.01); G02B 26/12 (2006.01); G02B 26/08 (2006.01)
CPC G03G 15/04036 (2013.01) [G02B 26/0816 (2013.01); G02B 26/121 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An optical scanning device for scanning scanned surfaces with light beams, the optical scanning device comprising:
a plurality of light source units, each of the plurality of light source units including a light source having a plurality of light emitting points for emitting a light beam and a holder for holding the light source; and
a casing of the optical scanning device for holding the plurality of light source units, the casing including a plurality of mounting surfaces for holding a cylindrical portion of the holder of each of the plurality of light source units; and
a plurality of springs urging the plurality of light source units to the plurality of mounting surfaces of the casing,
wherein each of the holders includes two projecting portions at one end portion of the holder with respect to a direction of a central axis of the cylindrical portion, the two projecting portions project in a direction perpendicular to the central axis of the cylindrical portion and extend in a direction away from the central axis and each other when viewing the light source unit in a direction of the central axis, with positions of the two projecting portions differing by 180 degrees in a circumferential direction of the cylindrical portion of the holder, and with each of the two projecting portions being provided with a U-shaped cut-away portion.