Adjusting the Media Tray Loosen the Adjustment Knobs on the Side of the Media Tray. The tray should be adjusted so that the edge of the tray is below the throat (output) of the cutter. When the tray is adjusted correctly tighten the Adjustment Knobs. The Media Tray can also be adjusted to the length of labels being cut. Loosen the bottom Adjustment Knob, (under the tray) and move the Media Guide to accommodate your cut label size, then tighten the Adjustment Knob.