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:
Apr. 26, 2011
Filed:
Aug. 15, 2008
Edward Ellis Esdaile-watts, Balmain, AU;
Kent Benjamen Kwan, Balmain, AU;
Nicholas Kenneth Abraham, Balmain, AU;
Christopher Hibbard, Balmain, AU;
Kia Silverbrook, Balmain, AU;
Edward Ellis Esdaile-Watts, Balmain, AU;
Kent Benjamen Kwan, Balmain, AU;
Nicholas Kenneth Abraham, Balmain, AU;
Christopher Hibbard, Balmain, AU;
Kia Silverbrook, Balmain, AU;
Silverbrook Research Pty Ltd, Balmain, New South Wales, AU;
Abstract
A method of priming a printhead. The method includes the steps of: (i) providing a printhead having a plurality of nozzles for ejection of ink, an ink inlet and an ink outlet; (ii) providing an ink chamber having an outlet port connected to the ink inlet via an upstream ink line, the ink chamber having an inlet port controlled by a valve; (iii) priming the printhead by pumping ink from the ink chamber, through the printhead and into a downstream ink line connected to the ink outlet; and (iv) opening the valve if a level of ink in the chamber falls below a predetermined first level and replenishing with ink from an ink reservoir when the valve is open.