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. 22, 1991
Filed:
Jul. 15, 1988
Applicant:
Inventors:
Masahiro Wanou, Kawasaki, JP;
Kunihiko Sato, Hadano, JP;
Masatoshi Kimura, Ebina, JP;
Junzo Nakajima, Yokohama, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355219 ; 355210 ;
Abstract
A process unit to be loaded into an image forming apparatus, includes at least a photosensitive drum to be rotated and a conductive brush type charger for uniformly charging a surface of the photosensitive drum. The conductive brush fibers having tips which touch the surface of the photosensitive drum and apply a charge voltage of 500 V to 1,500 V to the surface of the photosensitive drum through the conductive brush fibers for uniformly charging the surface of the photosensitive drum.