Kyocera FS 2020D Advanced Operation Manual page 46

Loading Paper
5
Align the paper with the paper guides and insert as far as it will go.
Correct
Incorrect
When loading envelope, place with the envelope flap closed and
keep the printing side face-up. Insert envelope against the guide
with the flap on the front or left side until they stop.
6
Set the MP tray paper size on the printer's operation panel. Refer to
the Setting MP Tray Paper Size section in the Advanced Operation
Guide.
Note
If the paper is considerably curled in one direction, for
example, if the paper is already printed on one side, try to roll
the paper in the opposite direction to counteract the curl.
Printed sheets will then come out flat.
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