Samsung SCX-8240NA-CAS - Manual (Page 209)

Troubleshooting_ 209
If you do not still see the jammed original or not easily removed it, go to
the next step.
8. Open the exit tray cover.
9. Gently remove the jammed paper from the DADF.
10. Close the exit tray cover, the DADF input tray and the DADF cover. Load
the removed originals back into the DADF.