Loading paper into Tray 2
To avoid jams, never open or remove a tray during printing.
Pull Tray 2 out of the printer and remove any paper.
Raise the output bin extension.
Move the side width guides until the blue arrows on the width guides point to the size of paper you are loading.
On the back of the tray, press the blue ridges and slide the length guides until the arrow symbol points to the size you are loading.
Load the paper into the tray. If this is special paper such as letterhead, load it with the side to be printed down and the top edge toward the front of the tray.
Push down on the stack of paper to lock the metal lift plate into place. Make sure that the stack of paper is flat and that the paper is below the height tabs.
Slide the tray back into the printer.
HP 3550 3700 Loading paper into Tray 2