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. 14, 2020
Filed:
Mar. 29, 2018
Applicant:
Xerox Corporation, Norwalk, CT (US);
Inventor:
David L. Knierim, Wilsonville, OR (US);
Assignee:
XEROX CORPORATION, Norwalk, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 27/28 (2006.01); G01R 27/26 (2006.01); B41J 2/045 (2006.01);
U.S. Cl.
CPC ...
G01R 27/2605 (2013.01); B41J 2/04541 (2013.01); B41J 2/04581 (2013.01);
Abstract
A method for measuring an impedance of each of a plurality of piezoelectric actuators of a print head, each piezoelectric actuator connected to electronic selection circuitry of the print head that drives the piezoelectric actuators during a print operation. The method includes generating a waveform to drive a drive rail of the print head, the drive rail connected to the electronic selection circuitry of the print head and measuring an impedance of each of the plurality of piezoelectrical actuators of the print head through the electronic selection circuitry.