Droplet ejecting device

Details Droplet ejecting device Droplet ejecting device

1992-07-27

1995-03-07

Fuller, Benjamin R.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

B41J 2135

Patent

active

053962729

ABSTRACT:
In a droplet ejecting device capable of being driven at a low voltage and having a simple structure with low manufacturing costs, the droplet ejecting device has multiple ejectors each for changing a pressure of ink held in an ink passage by the use of a pressure generator so as to eject the ink held in the ink passage through an ejection port. The ejection ports comprise a slit disposed across the multiple ink passages and the slit is formed into a tapered cross section thereby eliminating a required process for manufacturing the same number of tapered ejection ports as that of ink passages in the prior art. Therefore, it is possible to reduce the number of manufacturing processes, manufacturing costs, and a driving voltage.

REFERENCES:
patent: 4580148 (1986-04-01), Domoto et al.
patent: 4752788 (1988-06-01), Yasuhara et al.
patent: 4879568 (1989-11-01), Bartky et al.
patent: 4887100 (1989-12-01), Michaelis et al.
patent: 4940996 (1990-07-01), Paton et al.
patent: 4942409 (1990-07-01), Paton et al.
patent: 4973981 (1990-11-01), Bartky et al.
patent: 4980703 (1990-12-01), Sakurai
patent: 5189437 (1993-02-01), Michaelis et al.
patent: 5208604 (1993-05-01), Watanabe et al.

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