| 摘要 |
An actuator unit (501) is provided with a plurality of pressure chambers (310) arranged in a row, and a plurality of pressure generators (17) for applying pressure to inks contained in the pressure chambers(310). A passage unit (502) is provided with a plurality of nozzle openings (23) communicating with the pressure chambers (310) to jet ink drops when pressure is applied to the inks contained in the pressure chambers (310) by the pressure generators (17), and two or more common ink chambers (330) containing inks to be supplied to the pressure chambers (310). The pressure chambers (310) arranged in a row are divided into a plurality of groups, and the common ink chambers (330(C), 330(M), 330(Y)) are assigned to the groups of the pressure chambers 310), respectively. The ink-jet recording head is capable of jetting ink drops of a plurality of kinds of inks and of forming pictures and characters in high print quality, and can be formed in a small size.
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