Patent ID: 6035103
Filing Date: 2000-03-07
Classification: G03G,G06F,G06K,H04N

Abstract:
A method for calibrating the halftone operation of a color marking engine wherein an image is created with a plurality of maximum density dots, comprising the steps of:creating a test pattern of a plurality of mid-density halftone images, each image with different offset values of the density levels of the cyan, magenta and yellow toners associated with the color marking engine, with the images comprising predetermined and different combinations of the offsets;running the test patterns through the marking engine to provide an output image;visibly selecting the desired one of the halftone images from the output image in accordance with predetermined visual criteria; andoffsetting the density level of the cyan, magenta and yellow toners in the marking engine whenever a maximum density value is requested of the marking engine with the offset associated with the selected image.