Inkjet head having laminated piezoelectric actuator

Details Inkjet head having laminated piezoelectric actuator Inkjet head having laminated piezoelectric actuator

2006-10-31

2006-10-31

Meier, Stephen (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S071000

Reexamination Certificate

active

07128405

ABSTRACT:
A common electrode formed on the lowest piezoelectric sheet has a shape corresponding to drive electrodes, and lead-out parts of the common electrode have a shape corresponding to projecting parts of the drive electrodes. Because the common electrode formed on the lowest piezoelectric sheet is made large enough to include the projected contours in the horizontal plane of the drive electrodes together with their lead-out parts, the common electrode lies between the cavity plate and the drive electrodes nearest to the cavity plate. Therefore, the voltage applied to the drive electrode is restricted from leaking to the cavity plate.

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