Multi-nozzle ink-jet print head of drop-on-demand type

Details Multi-nozzle ink-jet print head of drop-on-demand type Multi-nozzle ink-jet print head of drop-on-demand type

1984-07-05

1985-10-22

Hartary, Joseph W.

Recorders

Markers and/or driving means therefor

With ink supply to marker

G01D 1516

Patent

active

045491917

ABSTRACT:
A multi-nozzle ink drop-on-demand type of ink-jet printing head is able to deliver ink droplets at a higher rate of speed through a use of capillary action. Each of the many nozzles receives the ink required to form a droplet from an individually associated pressure chamber which is squeezed by its own (preferably piezoelectric) driving transducer. A capillary supply path by-passes each of the pressure chambers to provide an initial ink supply which is the start of a droplet formation that is completed upon the operation of the driving transducer. Thus, a time lag is eliminated, which would otherwise be required to start the droplet formation, and that lag elimination enables a faster ink jet response.

REFERENCES:
patent: 3747120 (1973-07-01), Stemme
patent: 3946398 (1976-03-01), Kyser
patent: 3988745 (1976-10-01), Sultan
patent: 4158847 (1979-06-01), Heinzl

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