US 11,747,749 B2
Developing cartridge including movable holder for holding electrical contact surface
Shinya Kusuda, Nagoya (JP); and Yasuo Fukamachi, Nagoya (JP)
Assigned to BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed by BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed on Jul. 8, 2022, as Appl. No. 17/860,788.
Application 17/860,788 is a continuation of application No. 17/218,238, filed on Mar. 31, 2021, granted, now 11,442,377.
Claims priority of application No. 2020-065658 (JP), filed on Apr. 1, 2020.
Prior Publication US 2022/0342345 A1, Oct. 27, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G03G 15/00 (2006.01); G03G 15/08 (2006.01); G03G 21/16 (2006.01)
CPC G03G 15/0863 (2013.01) [G03G 15/0889 (2013.01); G03G 21/1652 (2013.01)] 31 Claims
OG exemplary drawing
 
1. A developing cartridge comprising:
a casing configured to accommodate therein developing agent;
a developing roller rotatable about a developing roller axis extending in a first direction, the developing roller being positioned at one end of the casing in a second direction crossing the first direction;
a first agitator rotatable about an agitator axis extending in the first direction;
an agitator gear being positioned at one end in the first direction of the casing and rotatable about the agitator axis together with the first agitator, the agitator gear comprising:
a large diameter gear; and
a small diameter gear having a diameter smaller than a diameter of the large diameter gear, the small diameter gear being positioned between the large diameter gear and the casing in the first direction;
a developing memory;
a first electrical contact surface electrically connected to the developing memory; and
a first holder holding the first electrical contact surface, the first holder being positioned at the one end in the first direction of the casing, the first holder being positioned farther from the small diameter gear than the large diameter gear is from the small diameter gear in the first direction, the first holder and the first electrical contact surface being movable relative to the casing.