Electronics for Imaging Gmbh

Paul Michel

Jonathan Marsden

Ramin Samadani

David Lee

Michael Niles

Jorge Juliao

Bradley Pirman

A method and apparatus for launching a calibrator process by which the user is guided through the process of calibrating the conditions used by a particular print job is provided. Techniques are provided which calculate which print conditions will be used by the particular print job, which guarantees that the user is calibrating the correct conditions to get the best color quality for the particular job. The method and apparatus further provides techniques that allow the user to specify the conditions under which a calibration is considered expired in terms of time since the last calibration and the number of prints since the last calibration The method and apparatus further provides techniques for when the user encounters a new media type or print condition, the system can measure such and inform the user whether to create a new profile and/or new calibration set to get the optimal color quality.

Job based calibration, calibration guard, and profile advisor

Methods and apparatus are provided for receiving a PDL File that describes a print job, processing the PDL commands in the file, identifying print settings and printer factors that may affect the entire print job, and reporting such print settings and printer factors. Methods and apparatus are also provided for receiving a PDL File that describes a print job, processing the PDL commands in the file, identifying any objects in the print job that have associated predetermined attributes, and reporting the print objects that have any such predetermined attributes.

Methods and apparatus for analyzing electronic documents and digital printing systems

A tray alignment calibration page and method and apparatus using the page are provided. The page has graduated scales along horizontal and vertical edges, such that the scale values are enterable into an interface to align an image to be printed centered on a target page.

Paper tray adjustment page

A calibration apparatus and method for a color printer that allows a user to calibrate a printer without the use of expensive measuring instruments and prior user training is provided. The calibration process prints out two target layouts. On the first target the user selects the primary inks start and end points (highlights and shadows), and the black ink only input value that generates a 30% gray. The primary inks are the device-dependent colorants, cyan, magenta and yellow. The second target compares the 30% black ink with grays made of a combination of cyan, magenta and yellow inks. The user selects the best match in an iterative process. Using this data, calculations are made of the corrections to the original input signal values for the printer. A look up table is updated with corrected input values to compensate for the printer deviation from its standard behavior.

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Redwood City, CA, United States of America

Paul Michel