Samsung M267x series User Manual page 51

Media and tray
3 Adjust the document feeder width guides to the paper size.
• Dust on the document feeder glass may cause black lines on the
printout. Always keep the glass clean (see "Cleaning the machine" on
page 84).
• To print on both sides of the paper using the ADF, from the control panel
press (Copy) >
Sided or 1 -> 2 Sided Rot.
the sheet to print on the other side.
Duplex printing might not be available for some models (see "Features
by model" on page 7).
(Menu) > Copy Feature > Duplex > 1 -> 2
and print on one side of the paper, then reload
2. Menu Overview and Basic Setup
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