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:
Dec. 26, 2017
Filed:
Apr. 11, 2014
Hewlett-packard Development Company, L.p., Houston, TX (US);
Nicholas Matthew Cooper McGuinness, San Diego, CA (US);
Manish Giri, Corvallis, OR (US);
Chantelle Elizabeth Domingue, Corvallis, OR (US);
Melinda M. Valencia, Chula Vista, CA (US);
Jeremy Sells, Albany, OR (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
A printhead includes a plurality of firing chambers, a plurality of fluid ejectors, and at least one field generating member. Each one of the firing chambers includes a nozzle region to receive printing fluid. The printing fluid includes an ink vehicle having pigments disposed therein. At least one field generating member generates a non-uniform electric field to apply forces to maintain respective pigments in the ink vehicle of the printing fluid in the nozzle region.