Specify the distance of the cut from the fore edge.
Press [Cut Fore Edge].
Make sure that [Specify Cut Size] is selected.
Enter the cut length using the number keys, and then press [].
You can adjust the position of the fore edge cut from 6.0 to 50.0 mm (0.24 to 1.96 inches) in 0.1 mm (0.01 inches) increments.
For details about how to perfect bind, see Perfect Binding.