Dell 1815dn Multifunction Mono Laser Printer - Manual (Page 135)

If you cannot see the paper or the paper does not move when pulled, check the fuser area. For more information, see "Fuser Area Jam" .
4. Insert the paper tray into the printer until it snaps into place.
Printing automatically resumes.
Paper Feed Jam (optional tray 2)
1. Pull the optional tray 2 open.
2. Remove the jammed paper from the printer.
If you cannot see the paper in this area or the paper does not move when pulled, go to the next step.
3. Pull the tray 1 half way out.
4. Pull the paper straight up and out.
5. Insert the trays back into the printer.
Printing automatically resumes.
Bypass tray Jam
1. If the paper is not feeding properly, pull the paper out of the printer.