Patent ID: 7992961

Claim:
An ink-jet head comprising: a passage unit having an ink ejection face on which a plurality of ink ejection ports that eject ink droplets are formed; an actuator that is mounted on a mounting face of the passage unit which is opposite to the ink ejection face, and generates ejection energy for ejecting ink droplet from the ink ejection port; at least one side plate member having a side plate and a confronting plate, the side plate extending in a longitudinal direction of the passage unit along a contour line of the passage unit and being in contact with the mounting face at a position between an outer edge of the mounting face and the actuator in such a manner as to perpendicularly cross the mounting face, the confronting plate being connected to the side plate and confronting the mounting face; and a cover member placed at such a position that the actuator and the side plate member are sandwiched between the cover member and the passage unit, relative to the direction to perpendicularly cross the mounting face., wherein the cover member is disposed so as to press the confronting plate of the side plate member toward the passage unit, relative to the direction to perpendicularly cross the mounting face.