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. 11, 2014
Filed:
Jan. 23, 2013
Samuel Chen, Penfield, NY (US);
Mark C. Rzadca, Fairport, NY (US);
Eric K. Zeise, Pittsford, NY (US);
John T. Keech, Penfield, NY (US);
Michael J. Piatt, Dayton, OH (US);
Samuel Chen, Penfield, NY (US);
Mark C. Rzadca, Fairport, NY (US);
Eric K. Zeise, Pittsford, NY (US);
John T. Keech, Penfield, NY (US);
Michael J. Piatt, Dayton, OH (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A method for color density correction in a printing system that includes a linehead, with one or more printheads, that jets ink onto a moving print media and an integrated imaging system that captures images of content printed on the moving print media is provided. One or more pixel data values and a measured density value trace for a printed test block are produced by scanning the test block and averaging pixel data in a print media transport direction. A color and a density of the ink in the printed test block are determined using the pixel data values. The measured density value trace is compared with a respective reference density value. It is determined whether there is a difference between the measured density value trace and a reference density value is determined. If there is a difference, ink laydown for the printhead is adjusted based on the difference.