Samsung CLP 550 - Manual (Page 81)

U SING P RINT M ATERIALS 3.5
3
3 Flex the paper sheets back and forth to separate the pages,
and then fan them while holding one edge. Tap the edge of
the stack on a flat surface to even it up.
4 Load paper with the print side facing up.
Make sure that all four corners are flat in the tray and under
the corner brackets, as shown below.