| 摘要 |
A liquid ejection head can eject very fine droplets on the order of sub-picoliters. The liquid ejection head is provided with an ejection port for ejecting liquid as liquid droplets and comprises an energy generating element arranged vis-à-vis the ejection port to generate ejection energy to be applied to the liquid. No head-constituting member exists in the space formed by translating the area of the energy generating element toward the ejection port. The meniscus surface of the ejection port receives impact energy from the energy generating element. With this arrangement, droplets of the liquid are ejected from the central part of the meniscus surface having an area smaller than the meniscus surface so that they break the meniscus section at or near the central part thereof.
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