Recording method by ink jet recording apparatus and recording he

Details Recording method by ink jet recording apparatus and recording he Recording method by ink jet recording apparatus and recording he

1997-02-05

1999-08-03

Le, N.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 10, 347 71, B41J 2045

Patent

active

059331682

ABSTRACT:
A method of jetting drops of ink from a print head, and a print head adapted to the method are described. The drops of ink are stably jet with a size smaller than the nozzle openings. Described is a method in which a meniscus m that is initially stationary at a nozzle opening is rapidly drawn so that a central region mc of the meniscus is strongly drawn toward a pressure producing chamber. When the movement of the central region of the meniscus toward the pressure producing chamber begins to reverse, the pressure producing chamber is caused to contract to produce an inertial stream and causing the inertial stream to act intensively on the central region of the meniscus close to the pressure producing chamber side. As a result, by pushing only the central region of the meniscus at a high speed, an ink droplet whose size is smaller than the diameter of the nozzle opening is jetted out stably at a speed suitable for printing.

REFERENCES:
patent: 5521619 (1996-05-01), Suzuki et al.
patent: 5604522 (1997-02-01), Miura et al.
patent: 5689291 (1997-11-01), Tence et al.
patent: 5754204 (1998-05-01), Kitahara
patent: 5781203 (1998-07-01), Uriu et al.
Patent Abstracts of Japan, publication No. 06297707, application 05087536/1993, published Oct. 1994.

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