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. 03, 2008
Filed:
May. 12, 2006
Michael C. Mongeon, Walworth, NY (US);
Song-feng MO, Webster, NY (US);
Daniel W. Costanza, Webster, NY (US);
Michael C. Mongeon, Walworth, NY (US);
Song-Feng Mo, Webster, NY (US);
Daniel W. Costanza, Webster, NY (US);
Xerox Corporation, Norwalk, CT (US);
Abstract
Density or reflectance targets for respective first and second marking engines of a document processing system are determined. A series of control patches is printed with the respective first and second marking engines. Relative reflectance values of each control patch printed with the first and second engines are determined. First marking engine relative reflectance error values of each control patch and second marking engine relative reflectance error values of each control patch are determined correspondingly based at least on (a) corresponding first engine relative reflectance value and target relative reflectance value and (b) corresponding second engine relative reflectance value and target relative reflectance value. Based at least on one of the first and second marking engine relative reflectance error values, at least one of the first and second engine relative reflectance targets is adjusted. Based at least on the adjusted target, an image quality control of the document processing system is improved.