Printing apparatus and method variable velocity on-the fly print

Details Printing apparatus and method variable velocity on-the fly print Printing apparatus and method variable velocity on-the fly print

1982-03-01

1983-12-27

Pieprz, William

Typewriting machines

For typing or forming continuous or discontinuous line

By scriber or with scriber guide

400 70, 400126, 400322, 318561, B41J 304

Patent

active

044227817

ABSTRACT:
A method and apparatus for controlling the velocity of a carriage in a calligraphic type printing apparatus maximizes average velocity across the printing line. The method and apparatus, based upon the present carriage velocity and the maximum future carriage velocities along a predetermined next portion of the printing line, determine the direction of velocity change for the carriage, if any change is needed. Accordingly, the velocity of the carriage is controlled so as to not exceed maximum carriage velocities at various points along the printing line. These maximum carriage velocities are determined by the symbols being printed and in particular by the complexity of the symbols being printed. The method and apparatus can operate either on a demand or on a line-by-line basis.

REFERENCES:
patent: 3887796 (1975-06-01), Trousdale et al.
patent: 3893616 (1975-07-01), Trousdale
patent: 3908195 (1975-09-01), Leenhonts
patent: 3950685 (1976-04-01), Kraner
patent: 4150902 (1979-04-01), Brescia
patent: 4178108 (1979-12-01), Kane
patent: 4189246 (1980-02-01), Kane et al.
patent: 4268783 (1981-05-01), Murray
patent: 4293233 (1981-10-01), Hoffman
patent: 4324499 (1982-04-01), Giacone
patent: 4355273 (1982-10-01), DuVall

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