US 12,072,665 B2
Drum cartridge having electrical contact surface positioned at outer surface of drum frame
Hiroki Mori, Nagoya (JP); Atsushi Fukaya, Toyohashi (JP); Tsubasa Kiriyama, Nagoya (JP); and Nao Itabashi, Nagoya (JP)
Assigned to BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed by BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed on Aug. 2, 2022, as Appl. No. 17/878,975.
Application 17/878,975 is a continuation of application No. 17/347,860, filed on Jun. 15, 2021, granted, now 11,442,398.
Application 17/347,860 is a continuation of application No. 17/002,994, filed on Aug. 26, 2020, granted, now 11,054,787, issued on Jul. 6, 2021.
Claims priority of application No. 2019-158771 (JP), filed on Aug. 30, 2019.
Prior Publication US 2022/0365478 A1, Nov. 17, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G03G 15/00 (2006.01); G03G 21/16 (2006.01)
CPC G03G 21/1652 (2013.01) [G03G 21/1671 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A drum cartridge comprising:
a photosensitive drum rotatable about an axis extending in a first direction;
a drum frame having one end portion in a second direction at which the photosensitive drum is positioned, the drum frame having another end portion separated from the one end portion in the second direction;
a drum coupling rotatable together with the photosensitive drum; and
an electrical contact surface positioned closer to the another end portion in the second direction than the drum coupling is to the another end portion in the second direction.