Greyscale calibration method in digital printing

Details Greyscale calibration method in digital printing Greyscale calibration method in digital printing

1997-11-06

1999-04-20

Williams, Hezron

Measuring and testing

Instrument proving or calibrating

101483, 356243, 356421, G01N 2100

Patent

active

058958363

ABSTRACT:
The method of the invention allows adjustment of the Greyscale of a digital print in addition to adjusting the individual colors thereof, which have a tendency to vary as the respective inks are changed, the paper or canvas stocked utilized is replaced, or the printer drifts with time. In accordance with a preferred embodiment of the method, the densitometers employed in calibrating the printer are individually adjustable to vary the Greyscale, where needed, while continuing to tailor the component colors displayed. Rather than utilizing prior art methods of only calibrating the printer, the method of the invention additionally permits the adjustment of the calibrator in maintaining proper Greyscale.

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