A space at the leading edge of a sheet of paper—usually three-eighths to one-half inch wide—in which, on a sheetfed press, printing cannot take place. This margin is reserved for use by the grippers, or the mechanisms that carry the sheet through the press. The edge of the sheet containing the gripper margin is known as the gripper edge. During the layout phase of prepress, allowance must be made for the gripper in the design of any page.
|