Ink jet recording head having an improved substance arrangement

Details Ink jet recording head having an improved substance arrangement Ink jet recording head having an improved substance arrangement

1991-01-24

1993-01-26

Hartary, Joseph W.

Recorders

Markers and/or driving means therefor

With ink supply to marker

257537, B41J 205

Patent

active

051825775

ABSTRACT:
A recording head is equipped with a plurality of liquid discharge portions, each having a discharge opening for discharging ink, and a substrate. The substrate is provided with a plurality of electrothermal transducers for generating thermal energy to be utilized for discharging the ink supplied to the liquid discharging portions and a plurality of functional devices connected electrically to the electrothermal transducers. The plurality of functional devices are arranged in a direction different from an arrangement direction of the plurality of electrothermal transducers within a region provided with a wiring portion. The region includes common electrode wiring and selective electrode wiring for the plurality of electrothermal transducers and the plurality of functional devices. The plurality of electrothermal transducers are connected to the common electrode wiring. The wiring portion is formed essentially at a layer lower than the layer where the electrothermal transducers are formed.

REFERENCES:
patent: 4429321 (1984-01-01), Matsumoto
patent: 4458256 (1984-07-01), Shirato
patent: 4692783 (1987-09-01), Monma
patent: 4719477 (1988-01-01), Hess
patent: 4769653 (1988-09-01), Shimoda
patent: 5038192 (1991-08-01), Bonneau

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