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:
Nov. 21, 2000
Filed:
Jul. 06, 1999
Applicant:
Inventor:
Koji Uno, Kobe, JP;
Assignee:
Minolta Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
399283 ; 347 55 ;
Abstract
A developing apparatus deterioration of toner charge quantity on double rollers and prevents filming of the toner. The developing apparatus includes a first roller for conveying a developer contained in a container, a blade for charging the developer on the first roller to a predetermined polarity and for restricting the conveyance quantity of the developer, and a second roller opposed to the first roller. The second roller receives the developer from the first roller to hold it on an outer surface thereof. The apparatus further includes a developer recovering device for recovering the developer from the second roller at a non-developing time.