Serial printing device

Details Serial printing device Serial printing device

1974-08-05

1976-03-02

Skogquist, Harland S.

Textiles: fiber preparation

197 18, B41J 132

Patent

active

039412296

ABSTRACT:
A serial printing device comprises a type drum rotatably mounted on a carriage which can move parallely to a platen. On the periphery of the type drum are mounted a plurality of character-bearing elements urged against the drum by biasing means. A stepping motor rotates the drum for positioning a selected character-bearing element in front of the platen. A hammer is actuatable for pushing the selected character-bearing element radially outwardly relative to the drum against the action of the biasing means, and the drum is moved towards the platen simultaneously to the actuation of the hammer.

REFERENCES:
patent: 723855 (1903-03-01), Frantz
patent: 2127251 (1938-08-01), Fischer
patent: 2248097 (1941-07-01), Larson
patent: 3406807 (1968-10-01), Sasaki
patent: 3717234 (1973-02-01), Koller

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