Samsung Msys SF-830 - Manual (Page 33)

I NSTALLATION 1.18
7 While squeezing the side guide as shown, move it toward
the stack of paper until it lightly touches the side of the
stack. Do not too tightly to press the guide the edge of the
paper; the guide may bend the paper.
8 Close the Tray 1.
Using Tray 2(Option)
The optional tray can also hold a maximum of 550 sheets of 20lb
plain paper.
To load paper in the Tray 2, follow the instruction to load paper
in the Tray 1 on page 3.4.
Side guide