Method of forming tapered orifice arrays in fully assembled ink

Details Method of forming tapered orifice arrays in fully assembled ink Method of forming tapered orifice arrays in fully assembled ink

1991-12-31

1993-05-11

Cuda, Irene

Metal working

Method of mechanical manufacture

Fluid pattern dispersing device making, e.g., ink jet

29557, 21912169, 21912172, B41J 304

Patent

active

052089800

ABSTRACT:
A method of forming an outwardly tapered orifice for a fully assembled ink jet printhead. A main body portion and a cover plate for an ink jet printhead are mounted together such that the cover plate covers an ink-carrying channel which axially extends through the main body portion. First and second light beams capable of ablating the material used to form the cover plate are generated and an ink-carrying channel communicating orifice extending through the cover plate and tapering outwardly from a front side of the cover plate to a back side of the cover plate is formed by directing the first and second light beams at the front side of the cover plate at first and second angles, respectively, whereby the first and second light beams form the outwardly tapered orifice.

REFERENCES:
patent: 4430784 (1984-02-01), Brooks et al.
patent: 4680859 (1987-07-01), Johnson
patent: 4716423 (1987-12-01), Chan et al.
patent: 4733447 (1988-03-01), Ageishi
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patent: 4820897 (1989-04-01), Lefevre
patent: 4922265 (1990-05-01), Pan
patent: 5016024 (1991-05-01), Lan et al.
patent: 5072240 (1991-12-01), Miyazawa et al.
IBM Tech Disc Bulletin vol. 26 No. 3A Aug. 1983 "Nozzle Plate" G. S. Ratchford.

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