US 9,811,025 B2
Developer container, development device, process cartridge, and image forming apparatus
Tsukasa Abe, Yokohama (JP); Tatsuro Harada, Mishima (JP); and Akihiro Fujiwara, Mishima (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Feb. 24, 2016, as Appl. No. 15/52,518.
Claims priority of application No. 2015-039427 (JP), filed on Feb. 27, 2015.
Prior Publication US 2016/0252848 A1, Sep. 1, 2016
Int. Cl. G03G 15/08 (2006.01)
CPC G03G 15/0891 (2013.01) [G03G 15/0889 (2013.01); G03G 2215/085 (2013.01)] 39 Claims
OG exemplary drawing
 
1. A developer container comprising:
a conveyance member, having at least a first sheet member and a second sheet member, configured to convey a developer;
a chamber configured to store developer, the chamber comprising:
a recessed portion recessed away from the conveyance member in a radial direction of the conveyance member, as viewed in a lengthwise direction of the chamber; and
a deformation portion provided next to the recessed portion in a rotational direction of the conveyance member and configured to elastically deform the first sheet member, and
wherein a length of the recessed portion is longer than a length of the first sheet member in the lengthwise direction of the chamber, and
wherein the second sheet member is in contact with a wall inside the recessed portion when the first sheet member contacts the deformation portion.