Ink jet recording head

Details Ink jet recording head Ink jet recording head

1998-03-27

2000-11-07

Beatty, Robert

Incremental printing of symbolic information

Ink jet

Ejector mechanism

B41J 2045

Patent

active

061426164

ABSTRACT:
A silicon monocrystalline substrate (10) is provided with a piezoelectric element formed by a thin film process, and a plurality of pressure generating chambers 12 is arranged in high density by anisotropic etching. A narrow part (13) and a communicating part (14) are sealed by a sealing plate (20) which has a coefficient of linear expansion which does not exceed twice that of the silicon monocrystalline substrate. A common ink chamber (31) is provided with the sealing plate (20) as one surface and a thin wall (41) forms at least a part of the surface which is opposite to the sealing plate.

REFERENCES:
patent: 4730197 (1988-03-01), Raman et al.
patent: 4835554 (1989-05-01), Hoisington et al.
patent: 5605659 (1997-02-01), Moynihan et al.
patent: 5670999 (1997-09-01), Takeuchi et al.
patent: 5754205 (1998-05-01), Miyata et al.
patent: 5852456 (1998-12-01), Okada et al.
patent: 5856837 (1999-01-01), Kitahara et al.
patent: 5896150 (1999-04-01), Kobayashi et al.
patent: 5956059 (1999-09-01), Usui
Patent Abstracts of Japan, vol. 015, No. 489 (M-1189), Dec. 11 1991 & JP 03 211 058 A (Fuji Electric Co. Ltd), Sep. 13, 1991.

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