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. 02, 1999
Filed:
Aug. 13, 1998
Kazuhiko Sato, Hachioji, JP;
Keiichiro Suzuki, Hachioji, JP;
Konica Corporation, Tokyo, JP;
Abstract
In a development device for developing an electrostatic latent image formed on an image bearing body, the development device includes: a developer bearing body for conveying a developer borne thereon to a developing area on the image bearing body; a plurality of magnetic poles provided inside the developer bearing body; a detaching magnetic pole including optional two adjoining poles of the plurality of magnetic poles which are arranged to have the same polarity as each other for forming a repulsive magnetic field to remove the developer on the developer bearing body; and a magnetic body provided in the vicinity of and spaced away from the detaching magnetic pole, for forming a repulsive magnetic field having the same polarity as that of the detaching magnetic pole.