Dot matrix print head

Details Dot matrix print head Dot matrix print head

1987-07-06

1989-01-17

Sewell, Paul T.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

101 9305, B41J 312

Patent

active

047984848

ABSTRACT:
A dot matrix print head is described having an improved type of electromagnetic actuator device for the print needles; the ends of the striker elements which cooperate with one of the poles of the electromagnetic drive for each needle are in fact shaped on the side facing the said pole, in such a way as to be displaced with respect to the point of contact of the striker element on the pole itself, so as to cause between this end and the pole a predetermined clearance capable of compensating possible constructional imprecisions. (FIG. 2).

REFERENCES:
patent: 4051941 (1977-10-01), Hebert
patent: 4244658 (1981-01-01), Mori
patent: 4375338 (1983-03-01), Mitsuishi
patent: 4518269 (1985-05-01), Akazawa
patent: 4548522 (1985-10-01), Harada
patent: 4569605 (1986-02-01), Meier
patent: 4600321 (1986-07-01), Kwan

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