High ink coverage can potentially lead to printing problems such as streaking, spotting, and cracking. These issues may not manifest themselves on every printing of the book and may occur in future printings. The overall combined percentage of CMYK values of artwork for our presses should be less than 240%. For example, the 'rich black' we recommend would be 60% Cyan 40% Magenta 40% Yellow 100% Black (60+40+40+100=240%).
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