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:
May. 19, 2020
Filed:
Dec. 05, 2018
Applicant:
Hewlett-packard Development Company, L.p., Fort Collins, CO (US);
Inventors:
Gerard Alzona, San Diego, CA (US);
David Maxfield, Philomath, OR (US);
Dustin W Blair, Escondido, CA (US);
Sterling Chaffins, Corvallis, OR (US);
Andrew L Van Brocklin, Corvallis, OR (US);
Assignee:
Hewlett-Packard Development Company, L.P., Spring, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/125 (2006.01); B41J 2/045 (2006.01); B41J 2/14 (2006.01); B41J 29/13 (2006.01); G01N 27/10 (2006.01); B41J 2/11 (2006.01);
U.S. Cl.
CPC ...
B41J 2/125 (2013.01); B41J 2/0451 (2013.01); B41J 2/0458 (2013.01); B41J 2/04536 (2013.01); B41J 2/04555 (2013.01); B41J 2/04581 (2013.01); B41J 2/14153 (2013.01); B41J 2/14201 (2013.01); B41J 29/13 (2013.01); B41J 2/11 (2013.01); B41J 2002/14354 (2013.01); G01N 27/10 (2013.01);
Abstract
In some examples, a controller receives impedance sensor values from an impedance sensor in a printhead, determines whether the impedance sensor values correlate to a production of an effective drive bubble for the printhead, and issues a command to modify a firing parameter for a fluid ejector of the printhead based on the impedance sensor values.