In The Optional Tray 2 - Samsung SCX-6x22 User Manual

3 Pull the release lever to open the side cover.
Note
Do not touch the shiny drum cartridge surface. Scratches or
smudges will result in poor copy quality.
4 Carefully remove the misfed paper in the direction shown.
5 Close the cover and insert the paper Tray. Lower the rear part of the
Tray to align the rear edge with the corresponding slot of the
machine, then insert it completely.

In the optional tray 2

1 Pull the optional tray 2 open.
2 Pull the paper Tray to open. After you pull it out completely, lift the
front part of the Tray slightly up to release the Tray from the
machine.
If the paper does not move when you pull, or if you do not see the
paper in this area, stop and go to step 3.
3 Pull the tray 1 half.
4 Remove the paper in the direction shown. To avoid the paper torn,
pull it out gently and slowly.
To clear paper jam in Tray 2, follow the instructions on page 14.3.
14.3
<Troubleshooting>