US 12,455,525 B2
Image forming apparatus
Shinsuke Kobayashi, Kanagawa (JP); Toshihiko Takayama, Kanagawa (JP); Kensuke Umeda, Kanagawa (JP); and Ai Suzuki, Tokyo (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Sep. 22, 2023, as Appl. No. 18/473,110.
Claims priority of application No. 2022-154909 (JP), filed on Sep. 28, 2022.
Prior Publication US 2024/0111236 A1, Apr. 4, 2024
Int. Cl. G03G 15/00 (2006.01)
CPC G03G 15/5008 (2013.01) [G03G 15/5004 (2013.01); G03G 2215/025 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An image forming apparatus comprising:
a photosensitive drum that is rotatable;
a charging member configured to charge a surface of the photosensitive drum at a charging portion;
a developing member configured to supply toner onto the surface of the photosensitive drum charged by the charging member;
a transfer member configured to come into contact with the photosensitive drum to form a transfer portion, and transfer the toner supplied onto the photosensitive drum to a transfer material at the transfer portion;
a brush configured to come into contact with the surface of the photosensitive drum downstream of the transfer portion and upstream of the charging portion in a rotational direction of the photosensitive drum;
a drive unit configured to rotatably drive the photosensitive drum;
a control unit configured to control the drive unit to perform an image forming operation; and
a memory configured to store information about the image forming operation,
wherein, in a case where the image forming operation is performed and a non-image forming operation is performed after the image forming operation, the control unit performs control such that a switching operation for stopping the photosensitive drum after the photosensitive drum is driven and re-driving the photosensitive drum is performed a plurality of times based on the information about the image forming operation, and
wherein, in a case where the switching operation is performed, the control unit controls the brush to change in orientation to a first orientation when the photosensitive drum is driven and a second orientation when the photosensitive drum is stopped.