01 March 2013
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Rich black is a full colour black that gives you a deep black colour, as opposed to using 100% Black, which sometimes results in a washed-out look. If you want to make rich black, we suggest you use 40 Cyan, 40 Magenta, 40 Yellow and 100 Black. This will ensure you do not exceed 250% ink usage, which can lead to set off issues.