| 摘要 |
An object of the present invention is to provide a reliable ink jet print head that enables small ink droplets to be ejected at a high frequency while preventing possible satellites and mist. In the present invention, a bubbling chamber in which an energy generating element is disposed communicates, via an ejection port portion, with an ejection port 7 provided opposite the energy generating element. The ejection port portion is formed such that flow resistance to ink is lower in an area of the ejection port portion which is positioned inward from a center of the ejection port in an ink supply direction of ink flowing along the ink supply channel, than in an area of the ejection port portion which is positioned outward from the center of the ejection port.
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