Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Vincent Patrick Lawlor0
Gregory John McAvoy0
Kia Silverbrook0
Date of Patent
August 16, 2011
Patent Application Number
12239815
Date Filed
September 29, 2008
Patent Primary Examiner
Patent abstract
An inkjet printer including: a printhead having a plurality of nozzles assemblies, each nozzle assembly having: a nozzle chamber for containing ink, the chamber having a nozzle opening and an ink inlet; and a bend actuator for ejecting ink droplets from the nozzle opening by generating a positive pressure pulse in the ink during bending of the actuator. An ink supply system supplies ink to the printhead so that a hydrostatic pressure of ink can be varied. Increasing the hydrostatic ink pressure increases a volume of the ejected ink droplets, and decreasing the hydrostatic ink pressure decreases a volume of the ejected ink droplets.
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