US 11,740,585 B2
Process cartridge
Noriyuki Komatsu, Shizuoka (JP); Tomonori Mori, Kanagawa (JP); Teruhiko Sasaki, Shizuoka (JP); Makoto Hayashida, Shizuoka (JP); Naoki Maeda, Shizuoka (JP); and Satoru Harada, Aichi (JP)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Aug. 9, 2022, as Appl. No. 17/883,727.
Application 17/883,727 is a continuation of application No. 17/317,141, filed on May 11, 2021, granted, now 11,454,924.
Application 17/317,141 is a continuation of application No. 17/123,308, filed on Dec. 16, 2020, granted, now 11,029,640, issued on Jun. 8, 2021.
Claims priority of application No. 2019-235594 (JP), filed on Dec. 26, 2019.
Prior Publication US 2022/0382186 A1, Dec. 1, 2022
Int. Cl. G03G 21/18 (2006.01); G03G 15/08 (2006.01)
CPC G03G 21/1814 (2013.01) [G03G 15/0891 (2013.01); G03G 21/1842 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A process cartridge comprising:
a photosensitive member unit including a photosensitive drum on which an electrostatic latent image is formed and a frame that supports the photosensitive drum; and
a developing unit that is attachable to and detachable from the photosensitive member unit,
wherein the developing unit includes:
a developing roller that supplies toner to the photosensitive drum and collects the toner remaining on a surface of the photosensitive drum;
a housing in which an accommodating space that accommodates the toner is formed, the housing including a first bottom portion that has an arc shape and that projects toward an outer side of the accommodating space and a second bottom portion that has an arc shape and that projects toward the outer side of the accommodating space, in a state in use;
a first conveyance member that conveys the toner toward the developing roller and that is disposed above the first bottom portion in a state in use; and
a second conveyance member that conveys the toner toward the first conveyance member,
wherein the first conveyance member includes a rotation shaft, a first stirring blade, and a second stirring blade, the first stirring blade and the second stirring blade being respectively inclined at different angles relative to an axis line of the rotation shaft such that the toner is conveyed toward a center portion of the accommodating space in the axis line direction of the rotation shaft.