Epson STYLUS PRO 4400 Reference Manual page 198

Note:
When printing on Premium Glossy Photo Paper (250) roll paper or
Premium Semigloss Photo Paper (250) roll paper, do not select this
setting; otherwise, print quality may decline.
Double Cut
Select this setting to avoid the slight gap that occurs with the
Single Cut setting. A margin is created between the pictures, and
1 mm along the inside of each picture is cut.
198 Printing with Mac OS X
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