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:
Jul. 25, 1989
Filed:
Oct. 11, 1988
Applicant:
Inventors:
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355274 ; 355219 ;
Abstract
A transfer device for use in an electrophotographic copying machine includes a charger and is disposed opposite to a surface of a photosensitive body where a toner image is formed. When a copy paper is passed through the gap between the transfer device and the photosensitive body surface, the charger discharges and at the same time screening plates are moved into screening positions in the gap to shield the edge sections of the copy paper. Talc particles falling off from these edge sections of the passing copy paper can be thereby prevented from becoming attached to the surface of the photosensitive body.