Print electrode control circuit

Details Print electrode control circuit Print electrode control circuit

1982-06-16

1984-05-01

Pieprz, William

Typewriting machines

Typing by other than type-face or type-die

Thermal

219216, B41J 320

Patent

active

044457960

ABSTRACT:
Circuit for selectively enabling energization of printing electrodes in sequence in a print head to achieve a more nearly constant current flow in the electrodes to thereby produce recorded marks of more uniform size. The formation of the electrodes into gated small groups reduces the maximum allowable current and, hence, the electromagnetic radiation. During traversal of the print head along a print line, a lagging electrode group or groups are enabled before the leading groups regardless of travel direction to minimize recording impedance for energized electrodes.

REFERENCES:
patent: 3624661 (1971-11-01), Shebanow et al.
patent: 4141018 (1979-02-01), Mizuguchi et al.
patent: 4343012 (1982-08-01), Knapp
patent: 4355319 (1982-10-01), Takeuchi et al.

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