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:
Oct. 27, 2020
Filed:
Oct. 10, 2019
Xerox Corporation, Norwalk, CT (US);
Seemit Praharaj, Webster, NY (US);
Stuart A. Schweid, Pittsford, NY (US);
Michael J. Levy, Webster, NY (US);
John T. Newell, Fairport, NY (US);
Xerox Corporation, Norwalk, CT (US);
Abstract
A printer includes a plurality of printheads, a plurality of printhead drivers, and an optical sensor configured to generate image data of a substrate after the substrate has been printed by the plurality of printheads. A controller operates the printheads using the printhead drivers to print a pattern of ink drops on the substrate, determine from image data of the ink drop pattern received from the optical sensor whether a density response for the pattern of ink drops for each printhead is within a predetermined range about a reference density response for the pattern of ink drops, identify a peak voltage for each printhead determined to have the density response outside the predetermined range, and store the identified peak voltage in the printhead driver for the printhead. The printhead driver uses the identified peak voltage to generate firing signals for the printhead operatively connected to the printhead driver.