US 11,809,094 B2
Image forming apparatus
Takamasa Tsukada, Ichinomiya (JP); and Junichi Yokoi, Nagoya (JP)
Assigned to Brother Kogyo Kabushiki Kaisha, Nagoya (JP)
Filed by Brother Kogyo Kabushiki Kaisha, Nagoya (JP)
Filed on Sep. 26, 2022, as Appl. No. 17/935,216.
Application 17/935,216 is a continuation of application No. 17/222,633, filed on Apr. 5, 2021, granted, now 11,487,216.
Application 17/222,633 is a continuation of application No. 16/727,546, filed on Dec. 26, 2019, granted, now 10,996,584, issued on May 4, 2021.
Application 16/727,546 is a continuation of application No. 16/519,140, filed on Jul. 23, 2019, granted, now 10,558,139, issued on Feb. 11, 2020.
Application 16/519,140 is a continuation of application No. 16/257,803, filed on Jan. 25, 2019, granted, now 10,372,057, issued on Aug. 6, 2019.
Application 16/257,803 is a continuation of application No. 15/843,038, filed on Dec. 15, 2017, granted, now 10,228,631, issued on Mar. 12, 2019.
Claims priority of application No. 2016-243132 (JP), filed on Dec. 15, 2016; application No. 2016-243134 (JP), filed on Dec. 15, 2016; application No. 2016-243138 (JP), filed on Dec. 15, 2016; and application No. 2016-243141 (JP), filed on Dec. 15, 2016.
Prior Publication US 2023/0008509 A1, Jan. 12, 2023
Int. Cl. G03G 15/04 (2006.01); G03G 21/16 (2006.01)
CPC G03G 15/04054 (2013.01) [G03G 21/1647 (2013.01); G03G 21/1666 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An image forming apparatus, comprising:
a photosensitive drum assembly rotatable about a rotational axis extending in an axial direction;
a roller contacting the photosensitive drum assembly;
an exposure head comprising:
a plurality of light emitters aligned along the axial direction;
a lens array focusing light from the light emitters on the photosensitive drum assembly; and
a head frame supporting the light emitters and the lens array; and
a bearing supporting the photosensitive drum assembly rotatably, the bearing comprising a first contact face being in contact with the exposure head to define a distance between the lens array and the photosensitive drum assembly, the bearing comprising a roller-supporting portion supporting the roller rotatably.