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:
Sep. 22, 2015
Filed:
Jan. 23, 2012
Peter Paul, Webster, NY (US);
Jorge A. Alvarez, Webster, NY (US);
Nancy Y. Jia, Webster, NY (US);
Charles Donahue Rizzolo, Fairport, NY (US);
Augusto E. Barton, Palo Alto, CA (US);
Peter Paul, Webster, NY (US);
Jorge A. Alvarez, Webster, NY (US);
Nancy Y. Jia, Webster, NY (US);
Charles Donahue Rizzolo, Fairport, NY (US);
Augusto E. Barton, Palo Alto, CA (US);
Xerox Corporation, Norwalk, CT (US);
Abstract
A method and systems to control the temperature of a Keyless inker for variable data lithography printing. Inker heating elements are adjustable to control ink feed to individual zones located across the width of an ink roller. Feedforward and feedback control loops adjust the ink supply dynamically based on a pixel count of the image content. The pixel count looks ahead in the video stream to allow time for the adjustment at the inker heating elements to propagate through the inker unit to affect ink output onto the imaging drum surface. Feedback of the achieved ink density on control patches on the imaging drum is also used to command the inker heating elements. Feedback is also used to update the inker propagation delay and dynamic model used to determine how much the inker keys need to be adjusted based on the pixel count stream.