The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 14, 2007
Filed:
Mar. 31, 2005
Tachio Kawai, Odawara, JP;
Seiji Yamaguchi, Mishima, JP;
Syuhei Kawasaki, Susono, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A developing apparatus develops a latent image formed on an electrophotographic photosensitive member with a developer in an electrophotographic image forming apparatus The device includes a developer accommodating portion and a developer stirring member stirring the developer in the developer accommodating portion. The developer stirring member includes a rotatable member rotatably provided in the developer accommodating portion, first and second stirring rotatable portions provided on the rotatable member, and first and second movable stirring portions movably provided on the first and second stirring rotatable portions, respectively. The radius of rotation of the first and second stirring rotatable portions are different from each other, and a part of a stirring region in which the first stirring rotatable portion and the first movable stirring portion stir the developer and a part of a stirring region in which the second stirring rotatable portion and the second movable stirring portion stirs the developer, overlap.