US 11,720,054 B2
Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit
Takahito Ueno, Mishima (JP); Shigeo Miyabe, Numazu (JP); Masanari Morioka, Numazu (JP); and Masato Hisano, Susono (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Nov. 17, 2021, as Appl. No. 17/528,299.
Application 17/528,299 is a division of application No. 17/104,379, filed on Nov. 25, 2020, granted, now 11,237,517.
Application 17/104,379 is a division of application No. 16/815,477, filed on Mar. 11, 2020, granted, now 10,877,433, issued on Dec. 29, 2020.
Application 16/815,477 is a division of application No. 16/421,683, filed on May 24, 2019, granted, now 10,671,018, issued on Jun. 2, 2020.
Application 16/421,683 is a division of application No. 16/113,422, filed on Aug. 27, 2018, granted, now 10,539,923, issued on Jan. 21, 2020.
Application 16/113,422 is a division of application No. 15/171,291, filed on Jun. 2, 2016, granted, now 10,551,793, issued on Feb. 4, 2020.
Application 15/171,291 is a division of application No. 14/068,149, filed on Oct. 31, 2013, granted, now 9,678,471, issued on Jun. 13, 2017.
Application 14/068,149 is a division of application No. 13/570,671, filed on Aug. 9, 2012, granted, now 8,630,564, issued on Jan. 14, 2014.
Application 13/570,671 is a continuation of application No. 11/964,518, filed on Dec. 26, 2007, granted, now 8,280,278, issued on Oct. 2, 2012.
Claims priority of application No. 2006-346190 (JP), filed on Dec. 22, 2006; application No. 2007-042665 (JP), filed on Feb. 22, 2007; and application No. 2007-330303 (JP), filed on Dec. 21, 2007.
Prior Publication US 2022/0075314 A1, Mar. 10, 2022
Int. Cl. G03G 21/18 (2006.01); G03G 15/00 (2006.01); G03G 21/16 (2006.01)
CPC G03G 21/1842 (2013.01) [G03G 15/751 (2013.01); G03G 15/757 (2013.01); G03G 21/1647 (2013.01); G03G 21/185 (2013.01); G03G 21/186 (2013.01); G03G 21/1814 (2013.01); G03G 21/1817 (2013.01); G03G 21/1821 (2013.01); G03G 21/1853 (2013.01); G03G 21/1857 (2013.01); G03G 2221/1657 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A cartridge comprising:
a photosensitive drum having a rotational axis about which the photosensitive drum is rotatable;
a drum flange connected to an end portion of the photosensitive drum;
a developing roller having a rotational axis about which the developing roller is rotatable;
a casing rotatably supporting the photosensitive drum and the developing roller, the casing including a bearing member, the bearing member being provided at an end portion of the casing in a direction of the rotational axis of the photosensitive drum and rotatably supporting the drum flange, the bearing member including a projection that projects in the direction of the rotational axis of the photosensitive drum and away from the photosensitive drum, with the projection including an outer surface facing away from the rotational axis of the photosensitive drum and extending at least partway about the rotational axis of the photosensitive drum; and
a lever supported by the casing at the end portion of the casing and movable relative to the casing, the lever including a force receiving portion configured to receive a force to move the lever relative to the casing,
wherein the lever is movable to a position at which a distance from the rotational axis of the photosensitive drum to a part of the lever as measured along a line perpendicular to the rotational axis of the photosensitive drum is shorter than a distance from the rotational axis of the photosensitive drum to a part of the outer surface as measured along a line perpendicular to the rotational axis of the photosensitive drum.