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.

Date of Patent:
Dec. 05, 2023

Filed:

Jun. 23, 2021
Applicant:

Xerox Corporation, Norwalk, CT (US);

Inventors:

Donald Thresh, Fairport, NY (US);

Jonathan Ireland, Lancaster, PA (US);

Bruce H. Smith, Webster, NY (US);

Michael N. Soures, Webster, NY (US);

James D. Vanbortel, Rochester, NY (US);

Assignee:

Xerox Corporation, Norwalk, CT (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 21/21 (2006.01); B41F 7/24 (2006.01); B41N 3/08 (2006.01);
U.S. Cl.
CPC ...
G01N 21/211 (2013.01); B41F 7/24 (2013.01); B41N 3/08 (2013.01); B41P 2233/30 (2013.01);
Abstract

An optical light reflectance measurement system above an imaging member surface measures fountain solution surface light reflectance interference on reflective substrate portions of the imaging member surface in real-time during a printing operation. The measured light reflectance interference corresponds to a thickness of the fountain solution layer and may be used in a feedback loop to actively control fountain solution layer thickness by adjusting the volumetric feed rate of fountain solution added onto the imaging member surface during a printing operation to reach a desired uniform thickness for the printing. This fountain solution monitoring system may be fully automated.


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