Ink jet recording head

Details Ink jet recording head Ink jet recording head

1998-09-24

2000-01-11

Barlow, John

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 56, 347 62, B41J 205

Patent

active

060128046

ABSTRACT:
In an ink jet recording head of the type in which a bubble generated in ink filling an ink channel ejects an ink droplet, a thin-film resistor that generates the bubble is protected from cavitation damage. To this effect, a particular portion of the resistor is covered with a tantalum layer. The thickness of the tantalum layer is from 0.1 to 0.2 microns.

REFERENCES:
patent: 5831648 (1998-11-01), Mitani et al.
Nikkei Mechanical, Dec. 12, 1988, pp. 58-63.
Baker, J., et al., "Design and development of a color thermal inkjet print cartridge," Hewlett-Packard Journal, Aug., 1998, pp. 6-15.
Mitani, M., et al., "Bubble pressure imposed upon thermal ink-jek heaters," Japan Hard Copy, 1996, p. 169.

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