US 11,669,025 B2
Image forming apparatus
Shougo Sato, Seto (JP)
Assigned to BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed by BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed on Apr. 19, 2022, as Appl. No. 17/723,975.
Application 17/723,975 is a continuation of application No. 17/358,944, filed on Jun. 25, 2021, granted, now 11,340,539.
Claims priority of application No. JP2020-117594 (JP), filed on Jul. 8, 2020.
Prior Publication US 2022/0244662 A1, Aug. 4, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G03G 15/08 (2006.01); G03G 21/16 (2006.01); G03G 21/18 (2006.01)
CPC G03G 15/0886 (2013.01) [G03G 21/1647 (2013.01); G03G 21/1676 (2013.01); G03G 21/1821 (2013.01); G03G 2215/0692 (2013.01); G03G 2221/163 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A drum cartridge including:
a photosensitive drum rotatable about a drum axis extending in a first direction;
a developing device capable of supplying toner to the photosensitive drum; and
a drum frame supporting the photosensitive drum and the developing device;
wherein the developing device includes:
a developing roller rotatable about a developing shaft extending in the first direction; and
a developing housing supporting the developing roller and movable with respect to the photosensitive drum in a second direction intersecting with the first direction, the developing housing having a toner receiving port for receiving toner,
wherein the drum cartridge further includes:
a developing shutter movable between a developing closed position where the developing shutter closes the toner receiving port and a developing open position where the toner receiving port is opened, the developing shutter being supported by the drum frame; and
a cushion member located between the developing housing and the developing shutter, and
wherein in a case where the developing housing moves with respect to the photosensitive drum, the cushion member allows the developing housing to move with respect to the developing shutter.