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:
Feb. 05, 1991
Filed:
Jan. 04, 1989
Yoshiki Ichikawa, Shiki, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A developing apparatus using a bicomponent developing material is composed of a toner and a magnetic carrier. Between a developing roller for forming a magnetic brush and a stirring member disposed adjacent the developing roller for stirring the developing material, a flat plate-shaped stirring aiding plate is positioned with spaces defined above and below the stirring aiding plate. The stirring member transports developing material toward the developing roller and stirring aiding plate. The developing material is moved by the developing roller toward the stirring member and stirring aiding plate. In this way, the developing material is allowed to flow in separate streams through the spaces between the developing roller and the stirring aiding plate, and between the stirring member and the stirring aiding plate. This permits uniform distribution of toner concentration on the developing roller along the axis thereof in order to improve the image.