US 11,693,356 B2
Image forming apparatus and process cartridge
Goshi Ozaki, Kanagawa (JP); and Ryota Shibuya, Kanagawa (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Mar. 30, 2022, as Appl. No. 17/708,347.
Application 17/708,347 is a continuation of application No. PCT/JP2020/037674, filed on Sep. 28, 2020.
Claims priority of application No. 2019-180285 (JP), filed on Sep. 30, 2019.
Prior Publication US 2022/0221820 A1, Jul. 14, 2022
Int. Cl. G03G 21/18 (2006.01)
CPC G03G 21/1857 (2013.01) 29 Claims
OG exemplary drawing
 
1. A cartridge mountable to and dismountable from a main assembly of an image forming apparatus, the main assembly including a tiltable drive transmission member and a cover covering the drive transmission member, the cartridge comprising:
a photosensitive drum;
a development roller;
a cartridge side gear configured to engage with a gear portion provided at an outer peripheral surface of the drive transmission member;
a movable member configured to move the gear portion of the drive transmission member to a position in which it is capable of engaging with the cartridge side gear; and
a restricting portion for suppressing inclination of the drive transmission member when the gear portion of the drive transmission member rotates in a state that the gear portion of the drive transmission member is in engagement with the cartridge side gear,
wherein a space surrounded by the restricting portion, the movable member, and the cartridge side gear is configured to accommodate the drive transmission member and the cover when the drive transmission member and the cartridge side gear are in engagement with each other,
wherein, when Ra is a distance from an axis of the photosensitive drum to the restricting portion measured in a direction perpendicular to the axis of the photosensitive drum, the space includes a region which is away from the axis of the photosensitive drum by a distance, measured in a direction perpendicular to the axis of the photosensitive drum, which exceeds the distance Ra, the region being in a range downstream of the restricting portion and upstream of the cartridge side gear in a rotational moving direction of the photosensitive drum during an image forming operation, and
wherein the region of the space is configured to accommodate the cover therein.