Matrix printhead apparatus

Details Matrix printhead apparatus Matrix printhead apparatus

1980-03-10

1982-03-23

Sewell, Paul T.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

101 9305, B41J 312

Patent

active

043209815

ABSTRACT:
An improved wire matrix ballistic impact printhead apparatus including a plurality of engaging structures for maintaining the armatures of a like plurality of electromagnetic actuators in proper positional alignment with the associated print style, for allowing individual adjustment of armatures to optimize printhead operation, for preloading the armatures with a force that will return them to their original position after the printing operation, and for damping vibrations at printhead operating frequencies.

REFERENCES:
patent: 3842955 (1974-10-01), Iwasaki
patent: 3893220 (1975-07-01), Bittner
patent: 4004673 (1977-01-01), Burzlaff et al.
patent: 4117435 (1978-09-01), Hishida et al.
patent: 4208138 (1980-06-01), Volke et al.

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