Ink jet printing head

Details Ink jet printing head Ink jet printing head

1980-09-22

1982-12-14

Griffin, Donald A.

Recorders

Markers and/or driving means therefor

With ink supply to marker

G01D 1518

Patent

active

043640664

ABSTRACT:
An ink jet printing head of simple construction includes two supply channels and a pressure chamber which are substantially coplanar with the nozzle. A piezoelectric element acts to decrease the pressure chamber volume and eject an ink droplet from the nozzle. A smoothly curved supply channel inlet assures that vapor in the pressure chamber is easily removed. Ink refills the pressure chamber from a transverse supply pipe feeding two supply channels when the chamber volume increases after ejection of a drop.

REFERENCES:
patent: 3747120 (1973-07-01), Stemme
patent: 3946398 (1976-03-01), Kyser et al.
patent: 4024544 (1977-05-01), Vernon
patent: 4229751 (1980-10-01), Tamai

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