Samsung CLX-8640 series Service Manual page 189

Paper jam in exit area (Jam Exit Face down)
1) Gently pull the paper out of the output tray.
Paper jam front of 2 Bin Finisher
1) Open the 2Bin Finisher front door.
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2) Open and close the front door. Printing automatically
resumes.
2) Press right of 1c lever and then push stacker to left.
3) Remove the jammed paper.
4) Slide in the stacker until you hear the sound 'click'.
5) Close the 2Bin Finisher front door.
4. Troubleshooting
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