HP LaserJet M5025 Multifunction Printer series - Manual (Page 89)

3. Place the paper in the tray, with the side to be printed facing down for single-sided printing, or
facing up for automatic 2-side printing, and make sure that it is flat at all four corners. Keep the
paper below the height tabs on the paper-length guide in the rear of the tray.
4. Slide the tray into the device.
ENWW Load media into the input trays 77