Piezoelectric driver for an ink jet recording head, and its manu

Details Piezoelectric driver for an ink jet recording head, and its manu Piezoelectric driver for an ink jet recording head, and its manu

1995-12-18

1998-05-26

Hall, Carl E.

Metal working

Piezoelectric device making

H04R 1700

Patent

active

057550190

ABSTRACT:
In a piezo-electric driver for an ink jet recording head, conductive layers are laminated as an active region in a piezo-electric plate except the front and rear end portions thereof to provide front and rear inactive portions, a pressure facilitating front end plate and a vibrator coupling rear end plate are fixedly mounted on the front and rear inactive portions, respectively, and the front end portion of the piezo-electric plate together with the front end plate are cut at predetermined intervals into pieces, namely, piezo-electric units, which depress the vibrating boards of the ink jet recording head wide to cause the parallel displacement of the vibrating boards thereby effectively pressing the ink in the pressure chamber.

REFERENCES:
patent: 4409601 (1983-10-01), Nilsson et al.
patent: 4438441 (1984-03-01), Bolmgren et al.
patent: 4566018 (1986-01-01), Nilsson

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