Kyocera FS-1350DN Operation Manual page 31

Loading Paper
3
Adjust the paper length guide to the paper size required.
If you are going to use paper that is longer than A4, pull out the
extension paper cassette by pushing the release lever one by one
and adjust it to the desired paper size.
4
Load the paper in the cassette. Ensure the side to be printed is
facing down and the paper is not folded, curled, or damaged.
Note Do not load paper above the triangle mark located on
the width guide.
2-3