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. 23, 2023
Filed:
Apr. 06, 2017
Applicant:
Hewlett-packard Development Company, L.p., Spring, TX (US);
Inventors:
Craig Olbrich, Corvallis, OR (US);
Joseph M Torgerson, Corvallis, OR (US);
Assignee:
Hewlett-Packard Development Company, L.P., Spring, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/07 (2006.01); B41J 2/045 (2006.01); B41J 2/125 (2006.01); B41J 2/14 (2006.01);
U.S. Cl.
CPC ...
B41J 2/072 (2013.01); B41J 2/04563 (2013.01); B41J 2/125 (2013.01); B41J 2002/14354 (2013.01);
Abstract
Examples include a fluid ejection device. The fluid ejection device comprises a fluid ejection die and a control engine. The fluid ejection die comprises nozzles to eject fluid drops and a temperature sensors disposed on the die to sense temperatures associated with nozzles. The control engine determines at least one nozzle characteristic of at least one respective nozzle based at least in part on a temperature change associated with the at least one respective nozzle corresponding to at least one ejection event.