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. 19, 1999
Filed:
Aug. 13, 1997
Applicant:
Inventor:
Sang-Yob Shin, Suwon, KR;
Assignee:
SamSung Electronics Co., Ltd., Kyungki-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
399398 ; 271312 ; 271900 ;
Abstract
An electrophotographic development system preventive of a rolling of paper on a photosensitive drum includes a charging roller for charging the surface of the photosensitive drum with high voltage by a rotation with the photosensitive drum, an exposure unit for producing an electrostatic latent image on the charged part of the photosensitive drum, a developing roller having a thin and uniform toner layer through which the latent image on the photosensitive drum passes to be developed into a visible image, and a transfer roller for transferring the image on a paper, whereby to compulsorily separate the paper rolling up the photosensitive drum.