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:
Jul. 21, 1992
Filed:
Dec. 26, 1990
Applicant:
Inventors:
Yoshiharu Momiyama, Tokyo, JP;
Shigeki Nakajima, Tokyo, JP;
Hiroshi Kikuchi, Tokyo, JP;
Yoshitomo Koga, Tokyo, JP;
Yukio Ota, Tokyo, JP;
Assignee:
Oki Electric Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355253 ; 118658 ; 355245 ; 355260 ;
Abstract
A developing apparatus includes restriction member disposed midway of a route through which developer is delivered from a hopper to a supply roller. The restriction member restricts the amount of the developer to be supplied to the supply roller. The amount of developer supplied from the supply roller to a developing roller is limited by the provision of the restriction member. The developer on the surface of the developing roller is thinned or doctored by a developing blade and develops an electrostatic latent image on a carrier.