US 12,461,483 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 Feb. 23, 2024, as Appl. No. 18/585,318.
Application 18/585,318 is a continuation of application No. 17/878,975, filed on Aug. 2, 2022, granted, now 12,072,665.
Application 17/878,975 is a continuation of application No. 17/347,860, filed on Jun. 15, 2021, granted, now 11,442,398, issued on Sep. 13, 2022.
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 2024/0272578 A1, Aug. 15, 2024
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)] 18 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 and another end portion separated from the one end portion in the second direction, the photosensitive drum being positioned closer to the one end portion than to the another end portion in the second direction;
a drum coupling rotatable together with the photosensitive drum, the drum coupling being positioned at an outer surface of one side in the first direction of the drum frame; 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.