Droplet ejection head and droplet ejection apparatus

Details Droplet ejection head and droplet ejection apparatus Droplet ejection head and droplet ejection apparatus

2007-08-14

2007-08-14

Nguyen, Lamson (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

Reexamination Certificate

active

11229163

ABSTRACT:
There is provided a droplet ejection head that is small in size, provides high productivity, and is extremely reliable. The droplet ejection head of the present invention includes pressure generating chambers that are connected to nozzle apertures, an elastic membrane (i.e., a diaphragm) that constitutes a portion of the pressure generating chambers, piezoelectric elements that are placed on a surface of the elastic membrane on the opposite side from the pressure generating chambers, and cause pressure changes to be generated inside the pressure generating chambers, and drive IC (i.e., drive elements) that drive the piezoelectric elements. In this droplet ejection head, the drive IC are flip-chip bonded to terminals that are provided on the piezoelectric elements.

REFERENCES:
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patent: 2004-034293 (2004-02-01), None
patent: 2004-148813 (2004-05-01), None

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