| 摘要 |
PROBLEM TO BE SOLVED: To provide an inkjet head which enhances the frequency responsivity and stably draws images without generating an ink bridge, and also to provide an inkjet recording device. SOLUTION: The inkjet head is an electrostatic type inkjet head for recording an image corresponding to image data onto a recording medium by discharging ink including charged coloring fine particles by an electrostatic force. The inkjet head has: a discharge opening substrate where discharge openings from which the ink is to be discharged are opened; a head substrate which is arranged with a predetermined interval spaced from the discharge opening substrate and forms an ink channel between the substrate and the discharge opening substrate; ink guides arranged above the head substrate and passed through the discharge openings to have the leading ends projected to an upper part than a surface of the discharge opening substrate; and a discharge control means for controlling discharging of the ink from the discharge openings. In the case where a sectional area of the discharge opening in a plane direction of the discharge opening substrate and a sectional area of the ink guide are made S1 and S2, S2/S1 holds 0.05-0.4. COPYRIGHT: (C)2005,JPO&NCIPI
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