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. 28, 1989
Filed:
May. 19, 1987
Hiroshi Murasaki, Ibaragi, JP;
Hiroshi Mizuno, Ikoma, JP;
Akihito Ikegawa, Sakai, JP;
Kouichi Etou, Takatsuki, JP;
Minolta Camera Kabushiki Kaisha, Osaka, JP;
Abstract
A developing device includes a developing sleeve which is provided with a plurality of magnets so as to transport a two-component developer composed of toner and carrier to a developing region where the developing sleeve and a member bearing an electrostatic latent image confront each other, a toner reservoir, a toner supply roller for supplying the toner to the developing sleeve, which is disposed at an end portion of the toner reservoir so as to be brought into contact with the toner in the toner reservoir, a rotary member which is rotatably provided in the toner reservoir so as to be rotated in contact with the toner supply roller and a charge erasing member for erasing electric charge of electrically charged toner transported to the toner reservoir by the toner supply roller.