Samsung CLX-8540NX User Manual page 116

Press right of 1c lever and then push stacker to left.
2
Remove the jammed paper.
3
Slide in the stacker until you hear the sound 'click'.
4
Close the stacker front cover.
5
,
Paper jam inside finisher, Paper jam inside finisher's duplex
Open the stacker front cover.
1
Pull the stacker lever 1a down. If necessary, pull the stacker lever
2
1b down as well.
Remove the jammed paper.
3
Pull up on the stacker lever and then close the stacker front cover.
4
12.10
<Troubleshooting>