Color calibration alarm apparatus and method for use in an...

Details Color calibration alarm apparatus and method for use in an... Color calibration alarm apparatus and method for use in an...

2006-07-25

2006-07-25

Williams, Kimberly A. (Department: 2625)

Facsimile and static presentation processing

Natural color facsimile

Measuring, testing, and calibrating

C358S001600, C358S001900, C382S112000, C382S162000, C382S167000

Reexamination Certificate

active

07081976

ABSTRACT:
This invention relates to a color calibration alarm apparatus and method for use in an image-rendering device. The alarm apparatus, and associated method, make use of a sensor device that compares printed or measured color values with expected or ideal color values. With the measured values differ sufficiently from the ideal color values, the alarm apparatus signals to the user that a calibration should be performed. The printed or measured color values are obtained from a test patch that is printed, preferably, on a break page between print jobs. The alarm device is placed at the output tray of an image rendering device in one embodiment that may also be a separate stand alone hand-held unit in other embodiments where it is manually used.

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