Dell 3110 Color Laser User Manual page 224

NOTE: If the paper jam message is not cleared after closing the front cover, pull out the 250-sheet
tray from the printer and remove the jammed paper.
6. Insert the tray back into the printer, and push until it stops.
CAUTION: Do not use excessive force on the tray. Doing so could damage the tray or the
inside of the printer.