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:
Nov. 17, 1998
Filed:
Jun. 02, 1997
Darrel R Rathbun, Ontario, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
An electrophotographic copying machine adapted to operate in either a functional or a pictorial mode, such that, in the pictorial mode, a light signal is transmitted through a line screen member to modulate an electrostatic latent image of an original document. The amount of light transmitted through the line screen is varied as a function of the amount of light used to generate the electrostatic latent image to control the contrast of the image generated thereby. As a result, pictorial image contrast is readily adjustable by regulating the light intensity of the light transmitted through the line screen member and onto the photoconductive surface for high quality pictorial copies in an electrostatographic copying machine.