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. 11, 2017
Filed:
Sep. 12, 2016
Applicant:
Hewlett-packard Development Company, L.p., Houston, TX (US);
Inventors:
Andrew L. Van Brocklin, Corvallis, OR (US);
Eric T. Martin, Corvallis, OR (US);
Alexander Govyadinov, Corvallis, OR (US);
David Maxfield, Philomath, OR (US);
Assignee:
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/045 (2006.01); B41J 2/14 (2006.01); B41J 29/393 (2006.01);
U.S. Cl.
CPC ...
B41J 2/14153 (2013.01); B41J 2/0451 (2013.01); B41J 2/0458 (2013.01); B41J 2/04555 (2013.01); B41J 2/04586 (2013.01); B41J 29/393 (2013.01); B41J 2002/14354 (2013.01);
Abstract
A method for determining an issue in an inkjet nozzle with impedance measurements, includes taking a first impedance measurement to detect a drive bubble with an impedance sensor; and taking a second impedance measurement to detect said drive bubble with said impedance sensor after said first impedance measurement.