High density thermal ink jet printhead

Details High density thermal ink jet printhead High density thermal ink jet printhead

1985-07-29

1986-09-16

Hartary, Joseph W.

Recorders

Markers and/or driving means therefor

With ink supply to marker

156647, 156657, 1566591, 156662, 346 75, G01D 1518

Patent

active

046125540

ABSTRACT:
An ink jet printhead composed of substantially two identical parts and method of batch fabricating the parts. Each part has V-grooves anisotropically etched between a linear array of heating elements having selectively addressable electrodes which are parallel to each other. The grooved structures of the parts permit them to be mated face-to-face, so that they are automatically self-aligned by the inter-meshing of the lands containing the heating elements on one part with the grooves of the other part. A pair of parts may be used as a printhead for a carriage type ink jet printer or a plurality of parts may be assembled for a pagewidth printer. The pagewidth printhead is assembled by offsetting the first two parts a selected number of grooves when they are mated so that the subsequently added adjacent parts abut each other and yet are self-aligned with the confronting parts.

REFERENCES:
patent: 4216477 (1980-08-01), Matsuda
patent: 4335389 (1982-06-01), Shirato et al.
patent: 4377814 (1983-03-01), Debesis
patent: 4392907 (1983-07-01), Shirato
patent: 4417251 (1983-11-01), Sugitani
patent: 4438191 (1984-03-01), Cloutier et al.
patent: 4463359 (1984-07-01), Ayota et al.
patent: 4571599 (1986-02-01), Rezanka
IBM Technical Disclosure Bulletin, vol. 21, No. 6, pp. 2585-2586, dated Nov. 1978, entitled "Two-Sided Groove Etching Method to Produce Silicon Ink Jet Nozzles".
Article "Fabrication of Novel Three-Dimensional Microstructures", by the Anisotropic Etching of (100) and (110) Silicon, by Ernest Bossous in IEEE Transactions or Electron Devices, vol. ED-25, No. 10 (Oct. 1978).

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