Method and apparatus for setting and varying margins and line sp

Details Method and apparatus for setting and varying margins and line sp Method and apparatus for setting and varying margins and line sp

1979-07-25

1982-01-19

Wright, Jr., Ernest T.

Typewriting machines

Including control of format by programmed-control-system

400 64, 400124, 400279, 4003171, 400320, 400322, 400323, 400328, 400342, 400568, 400569, 400583, 400902, 400903, B41J 530

Patent

active

043113990

ABSTRACT:
The specification discloses a method and apparatus for setting and varying margins, line spacing and printing direction of a data printing machine by a machine user before and during printing by use of a keyboard with push-button control which is coupled to a digital controller to input information about the actual and the desired location of a print head relative to a printing surface, in response to which the controller outputs signals which control relative motion of the print head and indexes its relative position, from the actual to the desired direction and location.

REFERENCES:
patent: 3557929 (1971-01-01), Schaaf
patent: 3764994 (1973-10-01), Brooks et al.
patent: 3779359 (1973-12-01), Morrison
patent: 3850279 (1974-11-01), Kolpek
patent: 3858703 (1975-01-01), Duley
patent: 3915278 (1975-10-01), Spence et al.
patent: 3923137 (1975-12-01), Kashio
patent: 3923138 (1975-12-01), Willcox
patent: 3970183 (1976-07-01), Robinson et al.
patent: 3998311 (1976-12-01), Greek, Jr. et al.
patent: 4026402 (1977-05-01), Byrd
patent: 4031996 (1977-06-01), Busch
IBM Technical Disclosure Bulletin, "Electromechanical Left-Hand Final Stop", Baker et al., vol. 18, No. 7, Dec. 1975, pp. 2218-2219.

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