Liquid jet recording head

Details Liquid jet recording head Liquid jet recording head

1984-04-25

1986-06-24

Goldberg, E. A.

Recorders

Markers and/or driving means therefor

With ink supply to marker

G01D 1518

Patent

active

045969949

ABSTRACT:
A liquid jet recording head comprises, in combination, a liquid discharge section having an orifice for forming flying liquid droplets at the time of the liquid discharge and a liquid flow path which is communicatively connected with the orifice and has as its one part a heat acting zone where heat energy acts on the liquid to form the liquid droplets; an electro-thermal transducer having at least a pair of electrodes arranged in mutual confrontation and in electrical connection with a resistive heat generating layer on a substrate to form a heat generating portion between said pair of electrodes; and a protective coating made up of three or more layers, each comprising an inorganic material, and laminated in a manner to cover the top surface of at least the heat generating portion, the inorganic materials constituting two mutually adjacent layers in the protective coating including therein at least one constituent element common to both layers.

REFERENCES:
patent: 4335389 (1982-06-01), Shirato et al.
patent: 4392907 (1983-07-01), Shirato et al.
patent: 4450457 (1984-05-01), Miyachi et al.

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