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:
Sep. 15, 2015
Filed:
Aug. 13, 2012
Masanori Tanaka, Yokohama, JP;
Motoki Adachi, Ashigarakami-gun, JP;
Kentaro Kawata, Suntou-gun, JP;
Takayuki Kanazawa, Yokohama, JP;
Shunsuke Mizukoshi, Yokohama, JP;
Masanori Tanaka, Yokohama, JP;
Motoki Adachi, Ashigarakami-gun, JP;
Kentaro Kawata, Suntou-gun, JP;
Takayuki Kanazawa, Yokohama, JP;
Shunsuke Mizukoshi, Yokohama, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A developing device includes a developer carrying member, rotatable while carrying a developer, for supplying developer to an image bearing member, a developer supplying member, which is provided with a foam layer at its surface and is rotatable in contact with the developer carrying member, for supplying the developer to the developer carrying member, and a first gear for transmitting a driving force to the developer supplying member. The first gear is movable to a first position where the driving force is not transmitted to the developer supplying member and to a second position where the driving force is transmitted to the developer supplying member. During initial drive of the developer carrying member, the developer supplying member is rotated by a frictional force generated between the developer supplying member and the developer carrying member, with the first gear to be moved from the first position to the second position.