Print control apparatus

Details Print control apparatus Print control apparatus

1987-07-01

1989-05-30

Sewell, Paul T.

Typewriting machines

Safety switch or condition-responsive-cutoff switch for...

400121, 400322, 101 9305, B41J 2938

Patent

active

048345628

ABSTRACT:
A print control apparatus for a dot printer such as serial printer or line printer comprises a print head having a plurality of dot elements, a drive mechanism for driving the dot elements and a control circuit for controlling the drive mechanism, and energized by a limited capacity of power supply. The apparatus comprises a circuit for detecting a dot drive voltage based on a difference between an idling power supply voltage and a power supply voltage in a print mode and/or a circuit for detecting the dot drive voltage, based on print data supplied from a print data source. An effective print speed is changed in accordance with the detected dot drive voltage.

REFERENCES:
patent: 4553867 (1983-11-01), Nakai

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