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:
Sep. 25, 1990
Filed:
Dec. 09, 1988
Minolta Camera Kabushiki Kaisha, Osaka, JP;
Abstract
A developing device including a rotatable developing sleeve confronting an electrostatic latent image support member, a supply device for supplying developer to a peripheral surface of the developing sleeve, a bristle height regulating member, a device for removing from the peripheral surface of the developing sleeve, the developer having passed through a developing region, a cutoff device for cutting off supply of the developer from the supply device to the developing sleeve, which is retractably projected into a developer supply region defined between the developing sleeve and the supply device and a magnet member provided fixedly in the developing sleeve and having a developing magnetic pole confronting the support member, a first magnetic pole confronting the bristle height regulating member and a second magnetic pole of a polarity identical with that of the first magnetic pole such that the developer is continuously held in an erect state on the developing sleeve by the first and second magnetic poles.