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:
Jul. 13, 2021
Filed:
Dec. 23, 2019
Xerox Corporation, Norwalk, CT (US);
Seemit Praharaj, Webster, NY (US);
Douglas K. Herrmann, Webster, NY (US);
Paul J. McConville, Webster, NY (US);
Jason M. LeFevre, Penfield, NY (US);
Chu-heng Liu, Penfield, NY (US);
David A. VanKouwenberg, Avon, NY (US);
Michael J. Levy, Webster, NY (US);
Linn C. Hoover, Webster, NY (US);
Thomas J. Wyble, Williamson, NY (US);
John P. Meyers, Penfield, NY (US);
Xerox Corporation, Norwalk, CT (US);
Abstract
A directionality detector is configured for use in an inkjet printer to attenuate the effects of ink drying in the nozzles of a printhead during printing operations. The directionality detector includes an optical sensor that generates image data of a test pattern formed on media by the printer, a diffuser that emits humidified air toward the media before the media is printed, and a controller operatively connected to the optical sensor and diffuser. The controller is configured compare the image data of the test pattern to stored image data of the test pattern printed at a previous time and determine whether any difference between the two images is greater than a predetermined threshold. The controller then operates the diffuser to direct humidified air toward the media passing the diffuser using the differences between the stored image data of the test pattern and the image data of the test pattern.