| 摘要 |
PROBLEM TO BE SOLVED: To provide a technology that can improve the impact position accuracy of liquid drops ejected from nozzle holes of an ink-jet head, prevent the damage of a nozzle plate and reduce cost. SOLUTION: The ink-jet head includes: a substrate; a plurality of piezoelectric element barrier ribs arranged on the substrate in a direction orthogonal to a predetermined ink ejecting direction to constitute barrier ribs of a plurality of pressure chambers corresponding to a plurality of nozzle holes respectively; the nozzle plate extending in the arranged direction of the plurality of piezoelectric element barrier ribs and bonded to bridge the top faces of the plurality of piezoelectric element barrier ribs and formed with the plurality of nozzle holes; a frame member arranged on the substrate to surround the piezoelectric element barrier ribs; and a sealing member bonded to the surface on the side, not facing the piezoelectric element barrier ribs, of the nozzle plate and to the top face of the frame member, and having openings in positions corresponding to the plurality of nozzle holes. COPYRIGHT: (C)2011,JPO&INPIT |
