Samsung SCX-5115 - Manual (Page 113)

T ROUBLESHOOTING 8.10
Bypass Jam
“BYPASS JAM” appears on the display when you try to print
using the Bypass Tray and the machine does not detect paper
due to no paper or improper paper loading.
“BYPASS JAM” also may occur when the paper is not properly fed
into the machine through the Bypass Tray. In that case, pull the
paper out of the machine.