Print head improvement

Details Print head improvement Print head improvement

1975-12-15

1976-11-16

Rader, Ralph T.

Textiles: fiber preparation

335276, B41J 304

Patent

active

039918696

ABSTRACT:
In a dot matrix printing head having a plurality of printing elements or styli each driven by an associated electromagnetically operated hinged armature, an adjustable spring arrangement for adjusting the preload biasing of each armature against an armature stop to insure that the associated electromagnets are matched with respect to flight time and can be set to deliver the proper printing force to each styli.

REFERENCES:
patent: 2524127 (1950-10-01), Johnson
patent: 3266418 (1966-08-01), Russo
patent: 3829908 (1974-08-01), Schneider
patent: 3842955 (1974-10-01), Iwasaki
patent: 3889793 (1975-06-01), Cattaneo

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