To stay within the printer specifications, to achieve high image quality and decrease the firing
frequency, it is often necessary to print an image in a different resolution from his raster
resolution. To this end, the halftoned image rows or columns are duplicated to match the
printing resolution, and printing masks are properly designed to print the image with the same
proportions as the input image is.
The quality of the resulting printed image is going to be dependent of the mask design chosen.
We propose a way to significantly improve the resulting quality by explicitly optimizing the
masking procedure for match a 600x1200 dpi printing resolution from a 600x600 dpi halftone
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INC, HP, "SHIFTED MASKS FOR A BETTER INK COVERAGE IN 600X1200 DPI PRINTMODES", Technical Disclosure Commons, (July 30, 2018)