Liquid jet recording head

Details Liquid jet recording head Liquid jet recording head

1984-04-11

1986-01-28

Goldberg, E. A.

Recorders

Markers and/or driving means therefor

With ink supply to marker

G01D 1518

Patent

active

045674930

ABSTRACT:
A liquid jet recording head comprises a liquid discharge portion including an orifice for discharging a liquid to form a flying liquid droplet and a liquid flow path communicating with the orifice having a heat applying portion to apply thermal energy to the liquid to form the liquid droplet, and an electro-thermal transducer including at least a pair of opposing electrodes electrically connected to a heat generating resistive layer formed on a base and a heat generating portion formed between the electrodes. A first upper protection layer of an inorganic insulative material and a second upper protection layer of an organic material are laminated on at least the electrodes, and the first upper protection layer and a third upper protection layer of an inorganic material different from that of the first upper protection layer are laminated in this order on at least the heat generating portion.

REFERENCES:
patent: 4410899 (1983-10-01), Haruta et al.
patent: 4429321 (1984-01-01), Matsumoto
patent: 4450457 (1984-05-01), Miyachi et al.

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