Press Configuration
A variety of sheetfed printing presses are available. These presses can best be classified according to their offset press cylinder configurations, although the placement of the feeder and delivery are also important consideration in the design of a press. For sheetfed offset lithographic printing, there are three basic press configurations:
Single color sheetfed press, in which there is a one set of printing cylinders arranged to print only one color on one side of each sheet as it passes through the press.
Multi color sheetfed press, in which more than one color is printed on one side of a sheet during a single pass through the press because there is more than one printing unit.
Perfecting sheetfed press, in which sheets are printed on both sides during one pass through the press.
Edit By Vikas
April 10, 2012