INK EJECTION NOZZLE EMPLOYING VOLUME VARYING INK EJECTING MEANS
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United States of America Patent
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app pub date -
Nov 6, 2011
filing date -
Oct 20, 2000
priority date (Note) -
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Abstract
A nozzle arrangement for ejecting ink includes a substrate defining an ink supply passage; a first endless wall extending from the substrate and bounding the ink supply passage; an elongate actuator anchored at a fixed end to the substrate, the actuator configured to bend towards and away from the substrate; and a cover terminating a free end of the actuator, the cover defining a second endless wall suspended from the cover within the confines of the first endless wall to define an ink chamber with the first endless wall. The bending of the actuator varies a volume of the ink chamber and effects ejection of ink through an ink ejection port. The first and second endless walls define a gap therebetween. The width of the gap is conducive to the formation of a fluidic seal effected via surface tension of the ink.
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