Method of increasing the grayscale resolution of a non-impact led page printer
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United States of America Patent
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Apr 14, 1992
Grant Date -
N/A
app pub date -
Jun 18, 1990
filing date -
Jun 18, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of improving the grayscale resolution of a bi-level, light emitting diode type page printer includes increasing the frequency at which printing data is entered into an LED head and correspondingly increasing the frequency at which the LEDs are actuated. The rate at which an image drum is moved past the LEDs is decreased and the feed rate of paper flowing through the printer is correspondingly decreased. The duration of each actuation of the LEDs is decreased to produce dots on the image drum and on the paper which are of a small size.
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