| 摘要 |
PROBLEM TO BE SOLVED: To prevent a main droplet and a satellite droplet from reaching an ejection object in such a manner as to be juxtaposed in the scanning direction of a head. SOLUTION: This recording head comprises a nozzle plate 24 wherein a nozzle array is formed by providing a plurality of nozzle openings 26 in a line. The recording head moves along the scanning direction of the head in the state of making the nozzle plate 24 face the ejection object, and can eject the droplet toward the ejection object from the nozzle opening 26 in the moving state. A nozzle groove part 38 is formed in a position to circumferentially deviate from a surface part 36a, orthogonal to the scanning direction of the head, of the inner peripheral surface of the nozzle opening 26, in the state of reaching the ejection-side opening edge of the nozzle opening 26; the width of the nozzle groove part 38 is set smaller than that of the nozzle opening 26; and a flow rate of a liquid flowing through the nozzle groove part 38 is made different from that of a liquid flowing on the other side of the nozzle groove part 38 in a state wherein the center of the nozzle opening 26 is sandwiched in between. COPYRIGHT: (C)2007,JPO&INPIT
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