Gripper: A series of metal fingers that hold each sheet of paper as it passes through a printing press. Gripper edge. The side of a piece of paper held by the gripper fingers as it passes through a printing press. Nothing can be printed in this area.

Swing Gripper:  Swing Gripper mechanism ensure dot to dot registration of even thin stocks at all speeds. The operator can do the make ready operation at low speed and the registration will hold good even when the press is running at high speed. Moreover, Swing Gripper also gives extra time for proper registration. If any sheet is mis-fed even for an inch it reaches the front lay and its proper feeding is ensured.