METHODS AND APPARATUS FOR REAL TIME CALIBRATION OF A PRINT SYSTEM MARKING ENGINE
First Claim
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1. A method for printing a print job on a plurality of printers, the method comprising:
- inserting a target image in the print job;
commencing printing of the print job on the plurality of printers;
detecting a printed target image generated by one of the printers;
measuring a color parameter in the detected target image;
calibrating the printer that generated the target image based on the measured parameter; and
resuming printing of the print job on the plurality of printers.
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Abstract
Methods and apparatus are disclosed for modifying the rendered output of a marking engine for a print job in progress. A marking engine commences printing print data for a print job. A parameter of a printed page of the print job is measured while the marking engine prints the print job. The measured parameter is compared to a reference, and the print data are modified before the print job completes, such that all subsequent portions of the print job are rendered with modified print data.
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Citations
18 Claims
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1. A method for printing a print job on a plurality of printers, the method comprising:
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inserting a target image in the print job; commencing printing of the print job on the plurality of printers; detecting a printed target image generated by one of the printers; measuring a color parameter in the detected target image; calibrating the printer that generated the target image based on the measured parameter; and resuming printing of the print job on the plurality of printers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for printing a print job on a plurality of printers, the system comprising:
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means for inserting a target image in the print job; means for commencing printing of the print job on the plurality of printers; means for detecting a printed target image generated by one of the printers; means for measuring a color parameter in the detected target image; means for calibrating the printer that generated the target image based on the measured parameter; and means for resuming printing of the print job on the plurality of printers. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification