Extending the dynamic range of single-bit, electrographic printers through multi-pass printing
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United States of America Patent
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May 4, 1999
Grant Date -
N/A
app pub date -
Oct 27, 1997
filing date -
Oct 27, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A computer (500) with a graphics program, an eight-plane raster image processor program, an eight-plane print-sending program, and a contrast-control program is connected to a single-bit, four-pass, electrographic printer (430). One or more of the primary colors is individually divided into multiple layers (100', 200 . . . ), with each layer having an independently selectable contrast setting (300--330). The printer (430') is now capable of printing images with an improved color gamut and dynamic range.
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