Diagnostics for color printer on-line spectrophotometer control system
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United States of America Patent
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Oct 28, 2003
Grant Date -
Apr 3, 2003
app pub date -
Sep 10, 2001
filing date -
Sep 10, 2001
priority date (Note) -
In Force
status (Latency Note)
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Abstract
In a color analysis method in which sheets with multiple different color printed test patches are moved relative to a color analyzing spectrophotometer, and in which fiducial marks are printed adjacent to respective test patches and optically detected by a fiducial mark detector to provide a triggering system for the respective test patch analysis, there is provided automatic diagnostic testing of the spectrophotometer and the fiducial mark triggering system, including automatically generating special test sheets, some of which may include test areas of varying density black.
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