Photograph processing and copying system using coincident force drop-on-demand ink jet printing
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United States of America Patent
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Jun 1, 1999
Grant Date -
N/A
app pub date -
Dec 3, 1996
filing date -
Apr 12, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A digital color photograph printer (mini-lab) and a photograph copier which uses a drop on concurrent drop selection and drop separation demand printing mechanism. The system consists of a color continuous tone scanner, a scanner signal conditioning unit, a digital halftoning unit, a data phasing unit, and a printing mechanism using liquid ink. When copying, continuous tone image information from the image scanner is digitally color corrected, digitally halftoned in real-time and printed by the printing head. The system may be operated by a human operator, or may be fully automatic, producing a copy of a photograph after sensing payment by coin, banknote, credit card, or other means.
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Cited Art Landscape
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