US Patent No. 9,280,131

DEVELOPER CONTAINER, DEVELOPING APPARATUS, CLEANING APPARATUS, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS


Patent No. 9,280,131
Issue Date March 08, 2016
Title Developer Container, Developing Apparatus, Cleaning Apparatus, Process Cartridge, And Image Forming Apparatus
Inventorship Ryosuke Nakazawa, Yokohama (JP)
Sho Shirakata, Kawasaki (JP)
Tachio Kawai, Odawara (JP)
Kenji Hasegawa, Yokohama (JP)
Assignee Canon Kabushiki Kaisha, Tokyo (JP)

Claim of US Patent No. 9,280,131

1. A developer container that accommodates developer, comprising:
a first frame that has a recessed portion which has a sloped face; and
a second frame that has a first protruding portion;
wherein the first frame and the second frame are joined by
a first adhering portion in which the sloped face of the recessed portion and the first protruding portion are welded together,
and

a second adhering portion in which a second protruding portion on one of the first frame and the second frame and a flat portion
on the other side of the first frame and the second frame are welded together,

the recessed portion having a positioning inner side face that performs positioning of the first frame and the second frame.