Incremental printing of symbolic information – Ink jet – Ejector mechanism
Reexamination Certificate
2011-01-25
2011-01-25
Do, An H (Department: 2853)
Incremental printing of symbolic information
Ink jet
Ejector mechanism
Reexamination Certificate
active
07874650
ABSTRACT:
A piezo-electric type page width inkjet printhead includes an intermediate substrate that includes a pressure chamber to be filled with ink to be ejected, a manifold connected to an ink entrance hole to store ink that flows in through the ink entrance hole, a restrictor to connect the manifold to one end of the pressure chamber, and a damper formed through the intermediate substrate corresponding to the other end of the pressure chamber, a lower substrate including a nozzle formed through a portion of the lower substrate, which corresponds to the damper, to eject the ink, an upper substrate formed on the intermediate substrate to seal an upper side of the pressure chamber, and a piezoelectric actuator formed on the upper substrate to generate a driving power to the pressure chamber to eject the ink through the nozzle, wherein the intermediate substrate includes a both-sided copper clad laminate plate including an upper copper film and a lower copper film that are respectively formed on top and bottom surfaces of the laminate plate.
REFERENCES:
patent: 6701593 (2004-03-01), Lin et al.
patent: 7121650 (2006-10-01), Chung et al.
Baek Seok-soon
Kim Seong-jin
Shin Seung-joo
Do An H
Samsung Electro-Mechanics Co., LTD
Stanzione & Kim LLP
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