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. 17, 2000
Filed:
Dec. 21, 1998
Applicant:
Inventors:
Yoshie Iwakura, Nara, JP;
Fumio Shimazu, Nara, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ; G03G / ;
U.S. Cl.
CPC ...
399299 ; 399303 ; 399313 ;
Abstract
An idle roller on which a dielectric belt is wound is made up of a metal such as aluminum etc., and is used as a charging device. A voltage is applied to this idle roller from a d.c. power source. A sheet of paper is made to pass into and between this grounded idle roller (grounded via the dielectric belt) and the metal roller so that the paper is electrostatically attracted to the dielectric belt. The same d.c. power source which applies a d.c. voltage to the idle roller is connected to a multiple number of transfer rollers so as apply the same d.c. voltage to these transfer rollers.