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. 11, 1978
Filed:
Nov. 23, 1976
Applicant:
Inventors:
Toshio Nakatsubo, Hachioji, JP;
Masaji Nishikawa, Hachioji, JP;
Assignee:
Olympus Optical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355 / ; 96 / ;
Abstract
An electrographic process for producing, an electrostatic charge image corresponding to an image to be recorded on a record sheet having a dielectric material layer, by modulating a flow of corona ions by an electrostatic latent image formed on a photosensitive screen is disclosed. The process comprises changing a bias electric voltage applied across two electric conductive layers of the photosensitive screen in a direction such that attenuation of the electrostatic latent image formed on the photosensitive layer is compensated in response to the number of copies to be obtained.