Microplanar ink-jet printing head

Details Microplanar ink-jet printing head Microplanar ink-jet printing head

1984-11-19

1986-07-08

Goldberg, E. A.

Recorders

Markers and/or driving means therefor

With ink supply to marker

G01D 1518

Patent

active

045996288

ABSTRACT:
A plate, through which several ink ducts extend, merges at a flat side of the plate into nozzles and at the opposite side into separated pressure chambers. The printing head has a diaphragm plate common to all pressure chambers, connected to a one-piece piezoceramic plate, which has an embossed part overlying each pressure chamber. Film electrodes are provided on each embossed part, extending above and beyond the area of the pressure chamber. Electrical connections are made to the film electrodes outside the area above the pressure chambers so that the mass of the electrical connections does not affect the resonant frequency.

REFERENCES:
patent: 4367480 (1983-01-01), Kotoh
patent: 4370663 (1983-01-01), Markham
patent: 4520374 (1985-05-01), Koto

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