Bubble jet print head orifice construction

Details Bubble jet print head orifice construction Bubble jet print head orifice construction

1989-05-30

1990-08-14

Hartary, Joseph W.

Recorders

Markers and/or driving means therefor

With ink supply to marker

B41J 205, B41J 214

Patent

active

049491024

ABSTRACT:
An improved orifice construction for a bubble jet print head of the kind including a plurality of electrode-addressed resistive heater elements predeterminedly spaced in a linear array on a support substrate. Such construction includes a plurality of separator means extending up from the substrate surface at positions precisely between respective heater elements and an orifice plate fixedly mounted above the substrate and having a linear slot, of orifice width and linear array length, aligned over the heater elements and their intermediate separator members. The slot edges and separator members cooperate to define a plurality of discrete orifices that are precisely located vis a vis respective heater elements.

REFERENCES:
patent: 4312009 (1982-01-01), Lange
patent: 4490728 (1984-12-01), Vaught
patent: 4580148 (1986-04-01), Domoto
patent: 4611219 (1986-09-01), Sugitani et al.
patent: 4746935 (1988-05-01), Allen
patent: 4751533 (1988-06-01), Saito
patent: 4789871 (1988-12-01), Uddgren
patent: 4791439 (1988-12-01), Guiles

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