US 11,988,977 B2
Developing cartridge
Nao Itabashi, Nagoya (JP)
Assigned to BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed by BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed on Feb. 2, 2023, as Appl. No. 18/163,367.
Application 18/163,367 is a continuation of application No. 17/358,096, filed on Jun. 25, 2021, granted, now 11,592,764.
Application 17/358,096 is a continuation of application No. 17/066,609, filed on Oct. 9, 2020, granted, now 11,347,162, issued on May 31, 2022.
Application 17/066,609 is a continuation of application No. 16/745,543, filed on Jan. 17, 2020, granted, now 11,029,624, issued on Jun. 8, 2021.
Application 16/745,543 is a continuation of application No. 15/913,994, filed on Mar. 7, 2018, granted, now 10,545,429, issued on Jan. 28, 2020.
Application 15/913,994 is a continuation of application No. 15/280,558, filed on Sep. 29, 2016, granted, now 9,946,190, issued on Apr. 17, 2018.
Claims priority of application No. 2015-254200 (JP), filed on Dec. 25, 2015.
Prior Publication US 2023/0176501 A1, Jun. 8, 2023
Int. Cl. G03G 15/00 (2006.01); G03G 15/08 (2006.01); G03G 21/16 (2006.01)
CPC G03G 15/0865 (2013.01) [G03G 15/0863 (2013.01); G03G 21/1652 (2013.01); G03G 21/1676 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A developing cartridge comprising:
a developing roller rotatable about a rotation axis extending in a first direction;
a casing configured to accommodate developer therein, the casing having a hole; and
a holder being positioned at one end portion of the casing in the first direction, and the holder including:
a memory having an electrical contact surface; and
a boss extending in the first direction, the boss being inserted into the hole, the boss having a dimension in a second direction less than a dimension of the hole in the second direction, the second direction crossing the first direction.