Line control for platen printing devices

Details Line control for platen printing devices Line control for platen printing devices

1977-07-13

1980-04-01

Wright, Jr., Ernest T.

Typewriting machines

For line-spacing by incremental rotation of platen

By electric-power drive

400551, 4006163, 400902, 400567, B41J 1976

Patent

active

041959400

ABSTRACT:
A control for platen rotation in printers, and particularly in telex machines where the platen rotation drive, either a stepping motor or a DC motor, is provided with an incremental control actuated by keyboard keys to advance or counter advance the platen by a small increment of the full line space whereby alignment of the imprinting line with form spaces is facilitated.

REFERENCES:
patent: 3458772 (1969-07-01), Egart et al.
patent: 3461322 (1969-08-01), Hirsch et al.
patent: 3618738 (1971-11-01), Boyatt et al.
patent: 3644812 (1972-02-01), Bitto et al.
patent: 3694725 (1972-09-01), Abraham et al.
patent: 3754631 (1973-08-01), Wang et al.
patent: 3872959 (1975-03-01), Wang et al.
patent: 3880016 (1975-04-01), Jamieson et al.
patent: 3902584 (1975-09-01), Lee et al.
IBM Technical Disclosure Bulletin, "Adapter for Half-Line Space Control", Heath, vol. 19, No. 5, Oct. 1976, pp. 1539-1541.

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