In printing colour the paper may be slightly damper than it should be for key-block impressions, and a heavier pressure is necessary on the baren if the colour masses are large. If the baren is pressed lightly the colour will not completely cover the paper, but will leave a dry, granular texture. Occasionally this quality may be useful, but as a rule a smooth, evenly printed surface is best. It will be found that smooth, even printing is not obtained by loading the block with colour or paste, but by using the least possible quantity of both, and nearly dry paper.