Samsung ML-4512ND-XAA - Manual (Page 37)

Media and tray
37 2. Menu overview and basic setup
2 Adjust the multi-purpose tray paper width guides to the width
of the paper.
3 Flex or fan the edge of the paper stack to separate the pages
before loading paper.
4 Load the paper. Squeeze the multi-purpose tray paper width
guides and adjust them to the width of the paper.
5 Set the paper type and size from the control panel (see
"Setting the paper size and type" on page 42).
The settings set from the machine’s driver override the
settings on the control panel.
a To print from an application, open an application and start
the print menu.
b Open Printing Preferences (see "Opening printing
preferences" on page 46).
c Press the Paper tab in Printing Preferences and select an
appropriate paper type.
For example, if you want to use a label, set the paper type
to Label.