US 11,733,643 B2
Developing cartridge including supply roller, layer thickness regulation blade, and supply electrode electrically connected to both supply roller and layer thickness regulation blade
Atsushi Fukaya, Toyohashi (JP); Tomoya Ichikawa, Nagoya (JP); Koji Abe, Okazaki (JP); and Naoya Kamimura, Ichinomiya (JP)
Assigned to BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed by BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed on Jul. 14, 2021, as Appl. No. 17/375,187.
Application 17/375,187 is a continuation of application No. 16/843,926, filed on Apr. 9, 2020, granted, now 11,073,785.
Application 16/843,926 is a continuation of application No. 16/525,877, filed on Jul. 30, 2019, granted, now 10,649,366, issued on May 12, 2020.
Application 16/525,877 is a continuation of application No. PCT/JP2017/023027, filed on Jun. 22, 2017.
Claims priority of application No. 2017-015177 (JP), filed on Jan. 31, 2017.
Prior Publication US 2021/0382433 A1, Dec. 9, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. G03G 21/16 (2006.01); G03G 21/18 (2006.01); G03G 15/06 (2006.01); G03G 15/08 (2006.01)
CPC G03G 21/1652 (2013.01) [G03G 21/1867 (2013.01); G03G 15/065 (2013.01); G03G 15/0812 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A cartridge comprising:
a casing configured to accommodate toner therein;
a roller rotatable about a first axis extending in a first direction;
a blade;
a spring;
a first electrode electrically connected to the roller and directly contacting the spring, the first electrode being positioned at one end of the casing in the first direction, the first electrode being electrically connected to the blade via the spring, the first electrode including:
a connection part connected to one end of the roller; and
a first electrical contact surface made of conductive resin; and
a second electrode positioned at the one end of the casing in the first direction, the second electrode including:
a second electrical contact surface made of conductive resin, the second electrical contact surface being spaced apart from the first electrical contact surface in a second direction.