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.:

US 10168641 B1

Date of Patent:

Jan. 01, 2019

Filed:

Aug. 28, 2017

Developing device, process cartridge and electrophotographic image forming apparatus having developer supply member passing through developing opening

Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventor:

Sho Shirakata, Kawasaki, JP;

Assignee:

CANON KABUSHIKI KAISHA, Tokyo, JP;

Attorney:

Venable LLP

Primary Examiner:

Walter L Lindsay, Jr

Assistant Examiner:

Arlene Heredia Ocasio

Int. Cl.

CPC ...

G03G 15/08 (2006.01);

U.S. Cl.

CPC ...

G03G 15/0887 (2013.01); G03G 2215/0819 (2013.01); G03G 2215/0844 (2013.01);

Abstract

A developing device includes a developer carrying member for developing an electrostatic image with a developer, a developer container including a developing opening, and a developer supplying member for supplying the developer to a developing chamber through the developing opening. The developer supplying member includes a shaft member rotatably supported by the developer accommodating portion and a feeding member, wherein the feeding member includes a first feeding portion and a second feeding portion. The first feeding portion is provided in a downstream side, and the second feeding portion is provided in an upstream side with respect to a rotational direction of the shaft member.

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