Method and apparatus for enhancing and maintaining character qua

Details Method and apparatus for enhancing and maintaining character qua Method and apparatus for enhancing and maintaining character qua

1974-09-23

1976-01-27

Shapiro, Paul E.

Textiles: fiber preparation

178 94, 219216, 346 76R, B41M 526

Patent

active

039346951

ABSTRACT:
The quality of thermally printed characters is enhanced by controlling the time at which and the time for which power is applied to the resistive printing elements in a battery-operated moving-head thermal dot matrix printer. By sequentially strobing the elements in the pattern of the character to be formed as the print head moves across thermal sensitive paper, a high-quality slanted character is printed and parasitic losses are reduced. By inversely varying the time power is supplied to each dot as battery voltage varies, character quality is maintained and useful battery life is extended.

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patent: 3161457 (1964-12-01), Schroeder et al.
patent: 3467810 (1969-09-01), Cady, Jr.
patent: 3509980 (1970-05-01), Loughry et al.
patent: 3512158 (1970-05-01), Scarbrough
patent: 3567904 (1971-03-01), Carlsen
patent: 3577137 (1971-05-01), Brennan, Jr.
patent: 3725898 (1973-04-01), Canton
patent: 3754278 (1973-08-01), Borden, Jr.
patent: 3777116 (1973-12-01), Brescia et al.
patent: 3792481 (1974-02-01), Nagashima et al.
patent: 3845850 (1974-11-01), Herr et al.

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