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, 2013
Filed:
Jun. 26, 2009
Seiko Itagaki, Hachioji, JP;
Hiroshi Akita, Musashino, JP;
Seiko Itagaki, Hachioji, JP;
Hiroshi Akita, Musashino, JP;
Konica Minolta Business Technologies, Inc., Tokyo, JP;
Abstract
Provided is a developing device employing a two-component developer where a good image can be obtained by preventing the influence of scratching caused by a magnetic brush. A developing device comprises a first develop roller () for developing an electrostatic latent image, formed by the two-component developer on an image carrier (), in a first development area (n), and a second develop roller () for carrying toner supplied from the first develop roller () on the outer circumferential surface and developing the electrostatic latent image on the image carrier () in a second development area (n) on the downstream side of the first development area (n) in the rotational direction of the image carrier (), wherein the moving direction of the outer circumferential surface of a sleeve (A) is reverse to the moving direction of the surface of the image carrier () in the first development area (n), and a position (n) at which to supply toner from the first develop roller () to the second develop roller () is locate downstream of a regulation position (n) in the rotational direction of the first develop roller and upstream of the first development area (n).