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US 6,644,787 B2Granted
Ink jet printhead that includes coiled actuators
AssigneeSilverbrook Reseach Pty Ltd
InventorKia Silverbrook
Life of this patent
Estimating the term…
Abstract
A nozzle arrangement for an ink jet printhead includes a substrate. An actuator is positioned on the substrate to facilitate the ejection of ink from a nozzle chamber of the nozzle arrangement. The actuator has a coiled working portion that is configured to uncoil at least partially to perform work, when the coiled working portion receives an electrical signal.
Claims9
A nozzle arrangement for an ink jet printhead, the nozzle arrangement comprising:
- a substrate;
- and
- an actuator that is positioned on the substrate to facilitate the ejection of ink from a nozzle chamber of the nozzle arrangement, the actuator comprising an elongate, flexible, curved actuator arm having an inner end and an outer end, the inner end being fixed to the substrate and an actuating mechanism that is operatively arranged with respect to the actuator arm to straighten the actuator arm at least partially when activated by an electrical signal such that the outer end is displaced to an extent sufficient to perform work.
An ink jet printhead that comprises:
- a substrate;
- and
- a plurality of nozzle arrangements positioned on the substrate, each nozzle arrangement having an actuator that is positioned on the substrate to facilitate the ejection of ink from a nozzle chamber of the nozzle arrangement, the actuator comprising an elongate, flexible, curved actuator arm having an inner end and an outer end, the inner end being fixed to the substrate and an actuating mechanism that is operatively arranged with respect to the actuator arm to straighten the actuator arm at least partially when activated by an electrical signal such that the outer end is displaced to an extent sufficient to perform work.
Dependencies are inferred from the claim text.