The Heidelberg Speedmaster-74 is the industry standard for top quality offset printing. It has fiving inking units plus an aqueous coating unit, and runs up to 23x29 sheet size. It "perfects" 2/3 -- i.e. it can lay down up to two colors on one side of the sheet and three on the other side, all in a single pass. Top speed is 15,000 impressons per hour. The Speedmaster is ideal for large documents, long runs, multi-page documents and for printing large solids. it handles a wide range of paper stocks.