- 13 -1. Basic OperationsOpen the paper support so that outputs do not slip down from the output tray.Use the rear output tray when printing on envelopes, labels, or long paper.Paper is output with the printed side up. Plain paper is also available for this output tray.1Open the rear output tray (F) on the rear side of the machine.2Unfold the paper support.Rear Output Tray