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:
Jun. 09, 2009
Filed:
Apr. 07, 2005
Jeffery James Buchanan, Lexington, KY (US);
Kin Ming Kwan, Lexington, KY (US);
Ganesh Vinayak Phatak, Lexington, KY (US);
Audrey Dale Rodgers, Lawrenceburg, KY (US);
Jeffery James Buchanan, Lexington, KY (US);
Kin Ming Kwan, Lexington, KY (US);
Ganesh Vinayak Phatak, Lexington, KY (US);
Audrey Dale Rodgers, Lawrenceburg, KY (US);
Lexmark International, Inc., Lexington, KY (US);
Abstract
Ink delivery systems achieve balanced ink flow by positioning two or more ink chambers around ink ejection mechanisms in a printhead. A plurality of pie-shaped ink chambers may be arranged in a circle above an ink ejection mechanism, which provides short ink paths from each ink chamber, and ink paths having approximately the same length. This fosters even ink flow rates and equal pressure drop/loss of ink supplies, thereby improving ink feeds to a printhead and providing improved jetting efficiency and printhead performance.