Fabrication of integrated acoustic ink printhead with liquid lev

Details Fabrication of integrated acoustic ink printhead with liquid lev Fabrication of integrated acoustic ink printhead with liquid lev

1991-01-14

1992-05-05

Fuller, Benjamin R.

Recorders

Markers and/or driving means therefor

With ink supply to marker

310335, B41J 2045

Patent

active

051112205

ABSTRACT:
A method of fabricating an acoustic ink printhead with an integrated liquid level control layer is presented. With standard photolithographic techniques, acoustic lenses and ink supply channels are defined in a substrate. Apertures are created in a spacer layer plate to define cavities to hold the ink reservoirs for each ejector. Corresponding alignment holes also made in the substrate and in the spacer layer plate. With spheres matching the size of the alignment holes, the spheres engage the alignment holes to precisely align the apertures in the spacer layer plate with the acoustic lenses in the substrate. The plate and substrate are then bonded for an integrated acoustic printhead with liquid level control by capillary action.

REFERENCES:
patent: 3723215 (1970-03-01), Kessler
patent: 4454519 (1984-06-01), Oosaka et al.
patent: 4685185 (1987-08-01), Boso et al.
patent: 4751530 (1988-06-01), Elrod et al.
patent: 4801953 (1989-01-01), Quate
patent: 4959674 (1990-09-01), Khri-Yakub et al.

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