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:
Feb. 23, 1999

Filed:

Aug. 20, 1997
Applicant:
Inventors:

Junji Machida, Toyonaka, JP;

Syuichi Nakagawa, Suita, JP;

Ryuji Inoue, Itami, JP;

Yoichi Fujieda, Nishinomiya, JP;

Hiroshi Goto, Itami, JP;

Assignee:

Minolta Co., Ltd., Osaka, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
399284 ; 399274 ; 399279 ; 399286 ; 430107 ; 430120 ;
Abstract

A developing device according to the present invention has a developer carrying member for conveying a developer to a developing area opposite to an image carrying member with the developer held on its surface and a controlling member for controlling the amount of the developer conveyed to the developing area upon being pressed against the surface of the developer carrying member, the surface of the developer carrying member and/or the surface of the controlling member pressed against the surface of the developer carrying member being composed of an elastic material having a rubber hardness of 20.degree. to 70.degree. and having elongation of 400 to 1200%.


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