Method of manufacture of a multi-wire nonimpact printhead

Details Method of manufacture of a multi-wire nonimpact printhead Method of manufacture of a multi-wire nonimpact printhead

1980-12-05

1983-08-09

Husar, Francis S.

Metal working

Method of mechanical manufacture

Electrical device making

29826, 29603, 156174, 346155, H01K 310

Patent

active

043970850

ABSTRACT:
A method of making a plurality of multi-wire nonimpact printheads provides precise inter-wire spacing accuracy and repeatability of manufacturing steps to enable mass production.
A plurality of slats are molded, one alongside another on a cylindrical support shell, parallel to the shell axis. A helical thread is engraved on the slats along the axial length of the support shell. A continuous wire is wrapped in the thread and the portions of the wire on the slats are encapsulated. The support shell and wrapped wire is cut between adjacent slats to obtain a plurality of printhead blanks. Each blank is machined to smooth the exposed print wires. The resultant printheads may be used in page- width nonimpact printers.

REFERENCES:
patent: 3586562 (1971-06-01), Jones
patent: 3693185 (1972-09-01), Lloyd
patent: 3862394 (1975-01-01), Lane
patent: 3978494 (1976-08-01), Noker
patent: 4011692 (1977-03-01), Bos et al.
patent: 4131986 (1979-01-01), Escriva et al.
patent: 4330349 (1982-05-01), Swift et al.

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