| 摘要 |
PURPOSE:To prevent a leak of a recording liquid, to increase a liquid drip speed, and to reduce a misregistration of dots, by providing a slit on the surface of an oscillating unit on the side of a recording liquid flow path in the direction of the recording liquid flow path. CONSTITUTION:On a surface 5 of an oscillating unit 1 on the recording liquid flow path side, a slit 10 is provided longitudinally to a recording liquid flow path 3. In this manner, when the oscillating unit 1 is displaced vertically to the longitudinal direction of the recording liquid flow path 3 and a recording liquid 6 is jetted out of a nozzle 2, most of the recording liquid 6 flows along the recording liquid flow path 3 and the slit 10 provided in the oscillating unit 1; therefore, a recording liquid leakage 7 is eliminated, and the volume change obtained by the displacement of the oscillating unit 1 is efficiently converted to a pressure change to be transmitted to the recording liquid and, thus, a liquid drip speed can be raised. |
