Ink-jet printer damping

Details Ink-jet printer damping Ink-jet printer damping

1983-12-05

1985-07-09

Goldberg, E. A.

Recorders

Markers and/or driving means therefor

With ink supply to marker

346 75, G01D 1518

Patent

active

045285780

ABSTRACT:
An ink-jet printer includes a reservoir filled with ink and a duct communicating with the reservoir and also filled with ink. The duct has an end portion with a capillary nozzle for projecting the ink and an intermediate portion between the reservoir and the end portion. Transducer means are associated with the end portion of the duct for generating a first pressure wave in the ink, which is directed towards the nozzle and causes a droplet of ink to be discharged through the nozzle. A second pressure wave associated with the first pressure wave is directed towards the intermediate portion of the duct and, to substantially absorb the energy of this second wave, the printer further includes an elongate damper which extends in contact with the ink in only the intermediate portion of the duct.

REFERENCES:
patent: 3683212 (1972-08-01), Zoctan
patent: 4149172 (1979-04-01), Heinzl et al.
patent: 4354197 (1982-10-01), Reitberger
patent: 4417259 (1983-11-01), Maeda

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