Patent ID: 6183062
Filing Date: 2001-02-06
Classification: B41J,G06K,H04N

Abstract:
A method of processing color image data for printing on an inkjet printer to maintain edge quality in an image recorded on a receiving medium, comprising:receiving color image data comprising a plurality of color planes, the color planes including at least one black plane and at least one non-black plane, wherein each color plane comprises an array of separation pixels, each separation pixel having at least three states, a first state corresponding to depositing no ink, a second state corresponding to depositing one ink drop, and a third state corresponding to depositing more than one ink drop;identifying an interface between a black area and a non-printed area;defining an N-pixel wide border within the black area; andmodifying the color image data corresponding to the N-pixel wide border to set substantially all the separation pixels in the black plane to the third state.