A printing layout for printing both the front and back of a form from a single pressplate. After the first run through the press, the stock pile is inverted so that the back edge becomes the gripper edge for the second printing.
To work on both sides of the sheet gripping on both edges using a perfecting press. The paper is turned over automatically inside the press, as opposed to work-and-turn where the paper is manually turned and then run through the press again.
The method of printing a sheet with the same pages on the front and back side. After the first run, the sheet is tumbled bottom to top and printed on the back side. When cut and folded, the sheet yields two or more finished pieces.