Thermal jet recording apparatus

Details Thermal jet recording apparatus Thermal jet recording apparatus

1987-06-10

1990-04-03

Hartary, Joseph W.

Recorders

Markers and/or driving means therefor

With ink supply to marker

G01D 1516, B41J 304

Patent

active

049145622

ABSTRACT:
A thermal ink jet recording apparatus includes at least a substrate having a gap disposed over an ink reservoir on a base in communication with an ink source. A film circuit of electrodes and heating elements is formed on each substrate. A nozzle plate covering the substrates has a lower step portion and a upper step portion. The upper step portion includes nozzles substantially directly above and corresponding to the plurality of heating elements. Ink which is used for this apparatus includes ionic or non-ionic surface active agents for increasing permeability of the ink on a recording medium.

REFERENCES:
patent: 4313124 (1982-01-01), Hara
patent: 4339762 (1982-07-01), Shirato
patent: 4353079 (1982-10-01), Kawanabe
patent: 4463359 (1984-07-01), Ayata et al.
patent: 4514741 (1985-04-01), Meyer
patent: 4528577 (1985-07-01), Cloutier et al.
patent: 4535343 (1985-08-01), Wright
patent: 4568953 (1986-02-01), Aoki et al.
patent: 4587534 (1986-05-01), Saito et al.
patent: 4663640 (1987-05-01), Ikeda
Hewlett Packard Journal, May 1985, vol. 36, No. 5.

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