Piezoelectric ink jet head

Details Piezoelectric ink jet head Piezoelectric ink jet head

2007-06-12

2007-06-12

Feggins, K. (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

Reexamination Certificate

active

10852530

ABSTRACT:
The present invention is directed to a piezoelectric ink jet head wherein contacts for the electrical connection of the upper and lower electrodes that sandwich the piezoelectric element on the upper and lower sides are disposed in a solid region of the substrate where any of recess to make the pressure cavity, common feed path, feed port, nozzle passage or nozzle is not formed, in order to surely prevent the vibration characteristic of individual drive regions or individual piezoelectric element from varying.

REFERENCES:
patent: 6402303 (2002-06-01), Sumi
patent: 6471342 (2002-10-01), Horio et al.
patent: 0 974 465 (2000-01-01), None
patent: 1 245 390 (2002-10-01), None
patent: 2 288 766 (1995-11-01), None
patent: 5-318731 (1993-12-01), None
patent: 11-34323 (1999-02-01), None

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