Method of controlling impact printer noise
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United States of America Patent
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Oct 5, 2004
Grant Date -
Nov 28, 2002
app pub date -
Dec 20, 2000
filing date -
Dec 20, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method of controlling noise in an impact printer that modulates the input pulse to the power amplifier of the printer. The resulting current waveform is then applied to the print wire solenoids. The final shape of the force input to the platen reduces or spreads the spectral envelope containing problem harmonics and acoustic output noise.
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