US 11,703,795 B2
Development device, process cartridge, and image forming apparatus
Hiroaki Nosho, Suntou-gun (JP); Toru Oguma, Mishima (JP); and Tetsuya Numata, Suntou-gun (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Feb. 25, 2022, as Appl. No. 17/681,515.
Application 17/681,515 is a continuation of application No. 16/795,308, filed on Feb. 19, 2020, granted, now 11,287,772.
Application 16/795,308 is a continuation of application No. 16/280,800, filed on Feb. 20, 2019, granted, now 10,606,210, issued on Mar. 31, 2020.
Application 16/280,800 is a continuation of application No. 15/812,977, filed on Nov. 14, 2017, granted, now 10,254,710, issued on Apr. 9, 2019.
Claims priority of application No. 2016-225275 (JP), filed on Nov. 18, 2016; and application No. 2017-162243 (JP), filed on Aug. 25, 2017.
Prior Publication US 2022/0236687 A1, Jul. 28, 2022
Int. Cl. G03G 21/16 (2006.01); G03G 15/08 (2006.01); G03G 21/18 (2006.01)
CPC G03G 21/1652 (2013.01) [G03G 15/086 (2013.01); G03G 21/1676 (2013.01); G03G 21/1821 (2013.01); G03G 21/1871 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An image forming apparatus comprising:
a main assembly including a guide rail and a first spring part;
an opening and closing member configured to be openable and closeable with respect to the main assembly;
a cartridge including a housing configured to store developer, a developer carrying member configured to carry the developer, and a first contact point plate configured to be electrically connected to the first spring part, wherein the first contact point plate is disposed at a bottom part of the cartridge; and
a cartridge support member configured, in a state where the opening and closing member is opened with respect to the main assembly, to move relative to the main assembly,
wherein the cartridge is attachable to and removable from the cartridge support member,
wherein the cartridge support member supports the cartridge placed on the cartridge support member,
wherein the cartridge support member is moved to the main assembly in a first direction to bring the first contact point plate into contact with the first spring part, and
wherein the first contact point plate is arranged at a position closer to the developer carrying member than an end portion of the cartridge support member on a downstream side.