Head for ink-jet printer having piezoelectric elements...

Incremental printing of symbolic information – Ink jet – Ejector mechanism

Reexamination Certificate

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Details

C347S042000, C347S071000

Reexamination Certificate

active

07338151

ABSTRACT:
The present invention provides a line head for ink-jet printer capable of accomplishing a printing of high density and high quality, capable of achieving a high productivity with a simple construction, and capable of printing with multicolor inks (five colors or more). The line head for ink-jet printer comprises ink nozzle5, ink passages6, ink chambers7, and a piezoelectric element4of ferroelectric substance for changing a capacity of the ink chambers to jet an ink from the ink nozzles through said ink passages, and in which a silicon substrate1is employed as a substrate on which the ink nozzles and ink passages are formed. A thin film of ferroelectric substance of said piezoelectric element is formed by applying a fine patterning to a gel thin film of ferroelectric substance which is obtained by introducing a photosensitive group into a precursor sol of ferroelectric substance formed by sol-gel method and by applying the precursor sol to a base.

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European Search Report dated Aug. 24, 1999.

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