Xerox Phaser 8560MFP User Manual page 232

5.
Adjust the output tray for short or long paper.
For media shorter than 190 mm (7.5 in.), flip up the
paper stop.
Phaser® 8510/8560MFP Multifunction Product
8560-016
For media longer than 297 mm (11.7 in.),
extend the output tray.
9-10
Clearing Paper Jams
8560-017