In The Paper Exit Area - Samsung ML-2251NP User Manual

6.12
S
OLVING PROBLEMS
4
Check that there is no other paper in the printer.
5
Reinstall the toner cartridge, and then close the front cover.
Printing can now be resumed.

In the Paper Exit Area

1
If a long portion of the paper is visible, pull it straight out. If
not, continue to Step 2.
2
Open the rear output tray.