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:
Oct. 15, 1996
Filed:
Aug. 26, 1994
Taizo Nozawa, Yokohama, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A magnetic brush type developing device of the type used for electrophotography includes a developing roller and a carrier recovery roller, each of which includes a non-magnetic sleeve and a permanent magnet disposed within the non-magnetic sleeve. The developing roller is positioned adjacent to a photostatic body bearing an electrostatic latent image. During use the developing roller is rotated to transfer a two-component developing agent, comprised of a carrier and a toner, onto the photosensitive body. The carrier roller faces the photosensitive body and includes a permanent magnet having an orientation and a magnetic force that will cause the carrier component of the two-component developing agent to transfer from the photostatic body to the carrier roller during rotation of the carrier roller.