Epson DFX-9000 - Manual (Page 158)

158 Options and Consumables
Removing the perforation cutter
To remove the perforation cutter, follow the steps below. After
you remove the perforation cutter, store it in its original box and
packing materials.
1. Cut off any printed document in the printer as described in
the previous section.
2. Turn off the printer and open the paper separator cover.
3. Remove the perforated paper output attachment and the
output tray from the printer.