Device for lifting the printing head off the platen

Details Device for lifting the printing head off the platen Device for lifting the printing head off the platen

1982-02-11

1983-12-13

Burr, Edgar S.

Typewriting machines

Carriage or carriage-moving or movement-regulating mechanism

Means for repositioning carriage or platen thereon

400320, 400 59, 400 56, B41J 1120

Patent

active

044202695

ABSTRACT:
A printer having a carriage guided for movement along a platen and supporting a wire matrix printing element includes means for changing the distance between the printing element and the platen an amount to facilitate paper feeding and an additional amount for paper insertion.
The means of changing the distance between printing element and platen includes an electric motor driven in accordance with a stored program which determines motor acceleration characteristics.

REFERENCES:
patent: 3628645 (1971-12-01), McFeaters
patent: 3817365 (1974-06-01), Zimmermann
patent: 3910395 (1975-10-01), Colglazier et al.
patent: 4098389 (1978-07-01), Kwan
patent: 4265551 (1981-05-01), Adamek et al.
Brown, Henry T.; 507 Mechanical Movements; Brown & Allen Pub.; New York; 1876; pp. 30-31.

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