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. 03, 1989
Filed:
Nov. 22, 1988
Applicant:
Inventor:
Toru Homma, Sagamihara, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355253 ; 355245 ; 355251 ; 355260 ; 355262 ; 355265 ;
Abstract
A developing apparatus for developing an electrostatic latent image on a photosensitive drum comprises upper and lower magnet rollers for supplying a toner to the latent image on the drum. Disposed in a void portion surrounded by the photosensitive drum and the upper and lower magnet rollers is a screening member for isolating the drum from those portions of the magnet rollers which face the void portion.