When printing solid colours or text artwork work should be set to rich black (100% CMYK) or registration black to avoid pixelation. Please take into account that it is not possible to cover the full printable area with 100% ink density as it causes paper jams. Large areas of block colour will not print out evenly, it will also cause print marks. If large areas of block colour are needed an ink density of 75% can be used, as pictured on the left.