US 12,092,992 B2
Developing cartridge including developing roller and coupling
Nao Itabashi, Nagoya (JP); Hideshi Nishiyama, Owariasahi (JP); and Yasuo Fukamachi, Nagoya (JP)
Assigned to BROTHER KOGYO KABUSHIKI KAISHA, Aichi (JP)
Filed by BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed on May 8, 2023, as Appl. No. 18/313,434.
Application 18/313,434 is a continuation of application No. 17/332,275, filed on May 27, 2021, granted, now 11,747,765.
Application 17/332,275 is a continuation of application No. 16/989,597, filed on Aug. 10, 2020, granted, now 11,022,936, issued on Jun. 1, 2021.
Application 16/989,597 is a continuation of application No. 16/750,119, filed on Jan. 23, 2020, granted, now 10,768,550, issued on Sep. 8, 2020.
Application 16/750,119 is a continuation of application No. 16/365,928, filed on Mar. 27, 2019, granted, now 10,571,828, issued on Feb. 25, 2020.
Application 16/365,928 is a continuation of application No. 15/668,085, filed on Aug. 3, 2017, granted, now 10,310,413, issued on Jun. 4, 2019.
Application 15/668,085 is a continuation of application No. 15/344,324, filed on Nov. 4, 2016, granted, now 9,785,093, issued on Oct. 10, 2017.
Application 15/344,324 is a continuation of application No. 15/042,765, filed on Feb. 12, 2016, granted, now 9,494,914, issued on Nov. 15, 2016.
Application 15/042,765 is a continuation of application No. 14/644,333, filed on Mar. 11, 2015, granted, now 9,557,684, issued on Jan. 31, 2017.
Application 14/644,333 is a continuation of application No. 13/598,895, filed on Aug. 30, 2012, granted, now 9,008,522, issued on Apr. 14, 2015.
Claims priority of application No. 2011-190041 (JP), filed on Aug. 31, 2011.
Prior Publication US 2023/0393521 A1, Dec. 7, 2023
Int. Cl. G03G 21/18 (2006.01); G03G 15/08 (2006.01); G03G 21/16 (2006.01)
CPC G03G 21/1867 (2013.01) [G03G 15/0889 (2013.01); G03G 21/1676 (2013.01); G03G 21/1857 (2013.01); G03G 21/186 (2013.01); G03G 21/1896 (2013.01); G03G 15/0865 (2013.01); G03G 15/0867 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A developing cartridge comprising:
a housing configured to accommodate developing material therein, the housing having a first side and a second side separated from the first side in a first direction;
a supply roller rotatable about a first axis extending in the first direction, the supply roller being positioned at one side of the housing in a second direction, the supply roller including a supply roller shaft;
a coupling rotatable about a second axis extending in the first direction, the coupling being positioned at the first side of the housing;
a first shaft extending outwardly relative to the first side of the housing, the coupling being rotatable about the first shaft;
a second shaft extending in the first direction, the second shaft being positioned at the second side of the housing;
a tooth movable relative to the second shaft, the tooth being positioned at the second side of the housing;
a detection protrusion positioned at the second side of the housing, the detection protrusion being movable according to the movement of the tooth; and
an electrode positioned at the second side of the housing, the electrode being electrically connected to the supply roller shaft, a portion of the electrode being positioned between the supply roller shaft and the detection protrusion in the second direction.