Dot printer head

Details Dot printer head Dot printer head

1984-01-20

1985-10-15

Sewell, Paul T.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

101 9305, B41J 312

Patent

active

045470855

ABSTRACT:
A dot printer head in which a plurality of needles are so arrayed that tips thereof are aligned linearly and are driven by electromagnets disposed in an annular arrangement. In this structure, the needles are guided by means of an intermediate guide plate and a tip guide plate in such a manner that the linear alignment of the needle tips is maintained regardless of any inclination of the needles, whereby the length of each needle is shortened and the amount of flexure thereof is reduced to enable fast printing as well as to enhance the durability.

REFERENCES:
patent: 4441828 (1984-04-01), Ochiai et al.
patent: 4473311 (1984-09-01), Sakaida

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