Epson Stylus Pro 4000 Reference Manual page 164

Normal Cut
Select this setting to keep margins at the top and bottom of the
printed data.
Off
Select this setting to cut the printouts manually. To cut the
printouts manually, follow these steps.
1. Press the Paper Feed
the cutting position with the scissors mark on the left side of
the print head.
164
Printing with Mac OS 8.6 to 9.x
or Paper Feed
button, and match