Liquid ejection head
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United States of America Patent
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Oct 20, 2015
Grant Date -
Oct 23, 2014
app pub date -
Mar 28, 2014
filing date -
Apr 17, 2013
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A liquid ejection head includes a substrate which has an energy-generating element that generates energy to be utilized for ejecting a liquid, and a supply orifice for supplying the liquid to the energy-generating element; and an ejection orifice forming member that has a plurality of ejection orifices through which the liquid is ejected, and at least one beam-like projection which projects toward the substrate and extends along an array direction of the ejection orifices at a position corresponding to the supply orifice. A sectional area perpendicular to the array direction of the ejection orifices at the central part of the beam-like projection in the array direction of the ejection orifices is larger than a sectional area in the direction perpendicular to the array direction of the ejection orifices at both ends of the beam-like projection in the array direction.
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