Ink jet head including vibration plate and electrode substrate

An ink jet head comprising:

• vibration plate substrate means including thin vibration plates for causing ink to be ejected by mechanical movement of the thin vibration plates:
• and
• electrode substrate means, spaced from said vibration plate substrate means by a small gap, for carrying counter electrode member respectively facing said vibration plates on a front side thereof;
• wherein when a voltage is applied between said vibration plate substrate means and said electrode substrate means, a resulting electrostatic force acting between any one of said vibration plates and an associated one of said counter electrode member causes ink to be ejected due to a mechanical movement of the one vibration plate, and wherein said counter electrode member on the front of said electrode substrate means are led out to a rear side of said electrode substrate means opposite to the front side on which said counter electrode member are provided for attachment to controller means.