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:
Jun. 01, 1976
Filed:
Aug. 14, 1974
Robert W Gundlach, Victor, NY (US);
Charles A Whited, Rochester, NY (US);
Thomas W Pike, Rochester, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
An electrophotographic printing machine and method of use therefor in which a plurality of light images of the same original document are formed. Each of the light images is of a different predetermined magnitude and irradiates a charged photoconductive member to record a plurality of electrostatic latent images thereof. The electrostatic latent images are developed with developer mixes having differing predetermined concentrations of toner particles therein. These developed powder images are transferred, in superimposed registration with one another, onto a common sheet of support material forming a high quality reproduction of the original document.