Apparatus for making a halftone recording and process for making a halftone recording using the same, as well as ink tank and head cartridge fit for halftone recording and ink-jet recording apparatus using the same
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United States of America Patent
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Jun 12, 2001
Grant Date -
N/A
app pub date -
Apr 22, 1997
filing date -
Apr 23, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The purpose is to provide a high quality halftone recording with a reduced grainy feeling without lowering the true resolving power. Provided is an apparatus for making a halftone recording by employing three or more types of color materials, each of which has at least one grade of concentration, wherein each type of the color materials having the lowest concentration provides, when recording on a recording medium having a first lightness, a recorded region having its own lightness, and wherein a difference between the first lightness and the lightness of the recorded region is not more than 35, the lightness being measured according to the definition of CIE 1976 psychological measurement lightness using a standard illuminating light D65 as a light source.
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