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.

Date of Patent:
Mar. 09, 2010

Filed:

Nov. 30, 2007
Applicants:

Shin Murayama, Hyogo, JP;

Shuuichi Nakagawa, Osaka, JP;

Ryuji Inoue, Hyogo, JP;

Yuji Nagatomo, Osaka, JP;

Shintaro Yamada, Tokyo, JP;

Kazushige Oonishi, Tokyo, JP;

Hirobumi Ooyoshi, Tokyo, JP;

Tomofumi Yoshida, Tokyo, JP;

Inventors:

Shin Murayama, Hyogo, JP;

Shuuichi Nakagawa, Osaka, JP;

Ryuji Inoue, Hyogo, JP;

Yuji Nagatomo, Osaka, JP;

Shintaro Yamada, Tokyo, JP;

Kazushige Oonishi, Tokyo, JP;

Hirobumi Ooyoshi, Tokyo, JP;

Tomofumi Yoshida, Tokyo, JP;

Assignee:

Ricoh Company, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 15/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

A developing apparatus is disclosed that includes a developer carrier for carrying a developer used for developing a latent image, a developer supplying chamber having a developer supplying member for supplying the developer to the developer carrier by rotation, a developer storing chamber positioned above the developer supplying chamber for storing the developer and supplying the developer to the developer supplying chamber, and a partitioning member positioned between the developer supplying chamber and the developer storing chamber. The partitioning member has an opening through which the developer is supplied from the developer storing chamber to the developer supplying chamber. The developing apparatus includes a conveying member positioned above the partitioning member for conveying the developer in a substantially horizontal direction. The conveying member has an opening facing part situated directly above the opening for conveying the developer with less force than the other parts of the conveying member.


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