Inkjet printhead with high nozzle to pressure activator ratio
AssigneePhilip Morris Incorporated
InventorsHenry M. Dante, A. Clifton Lilly JR.
Life of this patent
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AssigneePhilip Morris Incorporated
InventorsHenry M. Dante, A. Clifton Lilly JR.
Estimating the term…
An on-demand inkjet printhead includes an ink chamber provided with a plurality of nozzles and a single piezoelectric actuator for increasing pressure of ink within the chamber. Each nozzle is equipped with a heater element. Ink is ejected from selected nozzles of the printhead by energizing the heater elements of the selected nozzles to reduce surface tension and viscosity of ink at the selected nozzles, and applying an actuation voltage to the piezoelectric actuator to generate a pressure pulse in the ink within the ink chamber that ejects ink droplets from the selected nozzles but not from the non-selected nozzles. The ink chamber can also be provided with a plurality of piezoelectric actuators, each of which can be actuated independently.
An inkjet printhead, comprising:
An inkjet printhead comprising:
Method for applying ink to a print medium using an inkjet printhead comprising an ink chamber with a plurality of nozzles provided in at least one sidewall of the ink chamber and with a first piezoelectric actuator for altering ink pressure within the ink chamber, wherein each nozzle has a heater element, the method comprising the steps of:
Method for applying ink to a print medium using an inkjet printhead comprising an ink chamber with a plurality of nozzles provided in at least one sidewall of the ink chamber and with a plurality of piezoelectric actuators for altering ink pressure within the ink chamber, wherein each nozzle has a heater element, the method comprising the steps of:
Dependencies are inferred from the claim text.