Ink-jet recording head

Details Ink-jet recording head Ink-jet recording head

1997-05-20

2000-06-13

Barlow, John

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 94, B41J 2045

Patent

active

060740477

ABSTRACT:
In an ink-jet recording head using piezoelectric members, unwanted ejection of an ink material due to cross-talk is prevented. A head 10 comprises a channel plate 16 provided with a plurality of nozzles 28 and ink cavities 26, respectively, a diaphragm 18 adapted to cover the ink cavities, a vibration plate 20 with a plurality of piezoelectric members opposed to respective ink cavities through the diaphragm and a base plate 22 for supporting the piezoelectric members. The base plate 22 is formed such that a value of the elastic modulus multiplied by the thickness thereof is about 9.0.times.10.sup.3 (kgf/mm) or more.

REFERENCES:
patent: 4268134 (1981-05-01), Gulati et al.
patent: 5184155 (1993-02-01), Yonekubo et al.
patent: 5208605 (1993-05-01), Drake
patent: 5412410 (1995-05-01), Rezanka
patent: 5446485 (1995-08-01), Usui et al.
patent: 5539982 (1996-07-01), Hosono et al.
Asahi Chemical Industry News, Asahi Chemical Synthesizes PPTA Aramide Amorphous Films, Aug. 1991.

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