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:
Sep. 06, 2011
Filed:
Aug. 26, 2009
Angus John North, Balmain, AU;
Jennifer Mia Fishburn, Balmain, AU;
Samuel James Myers, Balmain, AU;
Kia Silverbrook, Balmain, AU;
Angus John North, Balmain, AU;
Jennifer Mia Fishburn, Balmain, AU;
Samuel James Myers, Balmain, AU;
Kia Silverbrook, Balmain, AU;
Silverbrook Research Pty Ltd, Balmain, New South Wales, AU;
Abstract
An inkjet printhead with an array of nozzlesand corresponding heatersconfigured for heating printing fluidto nucleate a vapor bubblethat ejects a dropof the printing fluid through the nozzle. Drive circuitrygenerates an electrical drive pulse to energize the heatersand is configured to adjust the drive pulse power to vary the vapor bubble nucleation time. By varying the power of the pulse used to generate the bubble, the printhead can operate with small, efficiently generated bubbles during normal printing, or it can briefly operate with large high energy bubbles if it needs to recover decapped nozzles.