High-quality/high-speed matrix printing

Details High-quality/high-speed matrix printing High-quality/high-speed matrix printing

1981-04-02

1983-08-23

Sewell, Paul T.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

101 9305, B41J 312

Patent

active

044001010

ABSTRACT:
The print head of a matrix printer includes two columns of print wires held in separate members which are individually vertically displaceable as well as together in order to obtain different conditions for printing. Good quality or high-speed modes can be obtained in a single pass, high quality in two passes, or a single pass with alternating, vertical displacement of the members for each print position.

REFERENCES:
patent: 4010835 (1977-03-01), Martin et al.
patent: 4159882 (1979-07-01), Sanders et al.

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