Oki C5150n User Manual page 19

Fan the paper to be loaded at the edges (1) and in the middle (2),
2.
then tap the edges of the stack on a flat surface to make it flush
again (3).
1
Load paper print side down, making sure the rear stopper (1) and
3.
paper guides (2) are snug against the paper.
2
Loading Paper • 19
3