US 12,259,675 B2
Process cartridge including developing cartridge having developing holder, and drum cartridge having elastic member that can be connected to developing holder
Yasuo Fukamachi, Nagoya (JP); Shinya Kusuda, Nagoya (JP); Kazutoshi Nakamura, Kuwana (JP); Junya Sumida, Ama (JP); and Hideshi Nishiyama, Owariasahi (JP)
Assigned to BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed by BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed on Dec. 11, 2023, as Appl. No. 18/535,272.
Application 18/535,272 is a continuation of application No. PCT/JP2022/022087, filed on May 31, 2022.
Claims priority of application No. 2021-104532 (JP), filed on Jun. 24, 2021.
Prior Publication US 2024/0111239 A1, Apr. 4, 2024
Int. Cl. G03G 21/16 (2006.01); G03G 15/00 (2006.01); G03G 15/08 (2006.01)
CPC G03G 15/751 (2013.01) [G03G 15/0863 (2013.01); G03G 15/0865 (2013.01); G03G 2215/00713 (2013.01); G03G 2215/025 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A process cartridge comprising:
a drum cartridge including:
a drum frame;
a photosensitive drum rotatable about a first axis extending in a first direction; and
a first memory having a first electrical contact surface, the first memory storing therein information related to the drum cartridge; and
a developing cartridge attachable to the drum frame, the developing cartridge including:
a casing;
a developing roller rotatable about a second axis extending in the first direction;
a second memory having a second electrical contact surface, the second memory storing therein information related to the developing cartridge; and
a developing holder holding the second electrical contact surface such that the second electrical contact surface is movable relative to the casing,
wherein the drum cartridge further includes:
an elastic member that can expand and contract in a second direction crossing the first direction, and
wherein the developing holder is connected to the elastic member and is movable in the second direction in a state where the developing cartridge is attached to the drum frame.