Samsung MultiXpress X422x Series Administrator's Manual page 49

Loading paper in the tray
7 After loading paper into the tray, pinch the paper width guide and move
it toward the stack of paper until it lightly touches the side of the stack.
Do not press the guide too tightly to the edge of the paper: the guide
may bend the paper.
• Do not push the paper guide too far causing the media to warp.
• If you do not adjust the paper width guide, it may cause paper jams.
Do not overload the tray: it may cause paper jams. Make sure that the paper
is below the maximum paper capacity guide inside the tray.
1
1 Paper capacity guide
8 Fix the the paper length guide using the locking switch. Release the
locking switch to load a different sized paper.
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2. Media and tray