Liquid jet head and liquid jet apparatus

Details Liquid jet head and liquid jet apparatus Liquid jet head and liquid jet apparatus

2007-05-01

2007-05-01

Meier, Stephen (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S068000

Reexamination Certificate

active

10992113

ABSTRACT:
A liquid jet head includes a passage-forming substrate including pressure generating chambers communicating with nozzle orifices, and piezoelectric elements provided on one side of the passage-forming substrate, with a vibration plate between the elements and the plate. The piezoelectric elements include lower and upper electrodes, and a piezoelectric layer. In the liquid jet head, pressure generating chambers are arranged in a width direction. The lower electrode is continuously provided from a region facing the pressure generating chambers to a region facing compartment walls. The liquid jet head includes a lead electrode for lower electrode, which is drawn out from the lower electrode in the region facing the compartment walls, and which includes a first lead electrode, having a width equivalent to or narrower than that of the compartment wall, and a second lead electrode formed on the first lead electrode and wider than the first lead electrode.

REFERENCES:
patent: 2003/0218657 (2003-11-01), Miyata
patent: 2002-225290 (2002-08-01), None

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