Liquid-jet head and liquid-jet apparatus

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

2008-04-29

2008-04-29

Luu, Matthew (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S058000, C347S070000

Reexamination Certificate

active

07364273

ABSTRACT:
A liquid-jet head includes a passage-forming substrate. A plurality of pressure generating chambers communicate with nozzles. Piezoelectric elements each include a lower electrode, a piezoelectric layer and an upper electrode. Leads for the upper and lower electrodes are drawn out. In the liquid-jet head, the lower electrode is a common electrode continuously provided in the region facing the pressure generating chambers. At least an end on one side of the lower electrode in a direction perpendicular to an arrangement direction of the pressure generating chambers is positioned in the region facing the pressure generating chambers. The lead electrode for the lower electrode is provided outside of a region corresponding to a space between the pressure generating chambers. The lead electrode for the lower electrode is connected through a common lead portion extended from the lower electrode.

REFERENCES:
patent: 2003-127358 (2003-05-01), None
patent: 2004-1366 (2004-01-01), None
patent: 2004-154987 (2004-06-01), None

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