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. 17, 2005
Filed:
Apr. 21, 2003
James D. Plymale, Brush Prairie, WA (US);
Kris M. English, Clackamas, OR (US);
Jeffrey K. Pew, Lake Oswego, OR (US);
James D. Plymale, Brush Prairie, WA (US);
Kris M. English, Clackamas, OR (US);
Jeffrey K. Pew, Lake Oswego, OR (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
One aspect of this disclosure relates to a printer apparatus, comprising an orifice plate having a nozzle orifice formed therein. Ink can flow through the nozzle orifice. The orifice plate has an orifice plate surface energy and the ink has an ink surface tension. A wiper blade can be disposed proximate the orifice plate. The wiper has a wiper blade surface energy. The wiper blade surface energy is greater than or equal to the ink surface tension. The ink surface tension is greater than or equal to the orifice plate surface energy.