Hewlett-packard Development Company, L.P.

Timothy E Stefl

Orhan E Beckman

Robert D Walton

Mary Nielsen

A method for automatically generating a color separation at a digital press comprises defining a color ink array of n-color inks. A separation model is constructed at the digital press based on parameters of the digital press and ink parameters of each of the n-color inks. The constructed separation model is applied to an input digital file to enable printing an element of the input digital file using the n-color inks.

Dynamic color separation at a digital press

A method is provided for adjusting color output in a digital press. The method comprises providing a digital press including a output color ink array configured to print a first spot color element on a media and including an input color array including a process color subarray and at least one custom color input. The first spot color element is printed on the media from the digital press via a spot color simulation of the at least one custom color input using the output color ink array. The first spot color element is adjusted by modifying, at the digital press, the at least one custom color input without adjusting the process color subarray of the input color array.

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Littleton, MA, United States of America

Timothy E Stefl