2. Optional equipment for positioning faulty printed sheets

Printing press point lay mark

With an optional equipment it is possible to achieve the same type of point lay mark as in the press. For this purpose the backgauge is provided with two front lay marks and one side mark. This allows to precisely align even printed sheets with a curved gripper edge or sheets where gripper edge and pull-type lay mark are not at a 90° angle. The measurements are automatically corrected when the marks are tilted forward or backward.

Fig. 3: Front lay guide The printed sheet (1) is placed against the front lay marks (3) with its curved gripper edge (2). These lay marks are tilted down and placed in front of the backgauge (4). Side gauge (5).

Fig. 4: Side lay guide The printed sheet (1) is placed against the side lay mark (3) with a non-square edge carrying the side lay mark (2). This lay mark is tilted down and placed in front of the backgauge (4). Side gauge (5).