Dot matrix impact printer employing magnetic dot elements

Details Dot matrix impact printer employing magnetic dot elements Dot matrix impact printer employing magnetic dot elements

1978-02-27

1980-02-12

Sewell, Paul T.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

101 9304, B41J 310

Patent

active

041881338

ABSTRACT:
A plurality of magnetic dot elements are provided, each of which comprises a cylindrical magnet and a conical impact member fixed to the cylindrical magnet. The magnetic dot elements are rotatable and can shift their positions along their axes. A magnetic field control is provided for controlling the orientation of each of the magnetic dot elements in accordance with print information so that the conical impact member of a selected magnetic dot element faces a print receiving member. A depression plate is provided for depressing the magnetic dot elements toward the print receiving member in such a manner that the conical impact member of the selected magnetic dot element comes into contact with the print receiving member, whereby a desired character is printed on the print receiving member in a dot matrix fashion.

REFERENCES:
patent: 3149901 (1964-09-01), Hagelbarger
patent: 3955498 (1976-05-01), Scott
patent: 4089401 (1978-05-01), Scott

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