HP Deskjet 3520 Inkjet Printer - Manual (Page 12)

paper tray
The fold-out paper tray holds paper and other media to be printed. Unfold the paper
tray before printing.
unfolding the paper tray
Follow these steps to unfold the paper tray:
1. Raise the printer cover.
2. Lower the paper tray.
3. Fold out the tray extension.
4. Lower the printer cover.
using the paper tray
Print different sizes of media by sliding the paper guide to the right or left. The
printer deposits printed pages on the top of the paper tray.
The print cartridges must be installed before
printing.