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:
Mar. 30, 1982
Filed:
Nov. 08, 1979
Applicant:
Inventors:
Yutaka Ebi, Tokyo, JP;
Tamio Ohori, Tokyo, JP;
Fuyuhiko Matsumoto, Tokyo, JP;
Satoru Tomita, Tokyo, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D / ; G03G / ;
U.S. Cl.
CPC ...
3461531 ; 346160 ;
Abstract
In an electrostatographic apparatus (11) such as a facsimile receiver, an electrical discharge electrode assembly (14) progressively forms an electrostatic image on an endless belt (12) as the belt (12) moves relative thereto. The belt (12) comprises a transparent substrate layer (12a) on which is formed a photoconductive layer (12b) and a dielectric layer (12c), with the electrostatic image being formed on the dielectric layer (12c). A lamp (26) illuminates the photoconductive layer (12b) to vary the conductivity thereof with an intensity according to the speed of movement of the belt (12).