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:
Dec. 10, 2002
Filed:
Dec. 15, 2000
Michael A. Parisi, Fairport, NY (US);
Michael P. Dirkx, Orlando, FL (US);
Xerox Corporation, Stamford, CT (US);
Abstract
An image registration detection system in a multicolor marking platform determines registration of non-black colors using either the reflectance or the density of a test pattern as a measurement parameter. A method is also provided to determine the degree of registration error of each non-black color using the density of the test pattern. The present invention encompasses any marking platform that develops multicolor images in color separation layers that are in superimposed registration with one another, including electrophotographic and ink marking platforms. The apparatus and method disclosed require less measurement precision than prior color registration methods. Registration measurements can be performed on images formed on a photoreceptor, images transferred to an intermediate substrate, images transferred to a target substrate, or images fused to a target substrate. The method disclosed also requires less processing overhead than prior registration methods while providing a more precise method of estimating registration error.