Methods and apparatus for real time calibration of a print system marking engine
AssigneeElectronics for Imaging, Inc.
InventorPeter A. Zuber
Life of this patent
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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.
Claims18
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.
A system for printing a print job on a plurality of printers, the system comprising:
- 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.
Dependencies are inferred from the claim text.