Samsung SF4500 User Manual page 12

If you want to remove the handset, slide it down, then take it out.
Document Tray
3. Pull the document tray upward. Fold out the extender on the document
tray, if necessary.
Document Exit Tray
4. Insert the two tabs on the document exit tray into the slots on the front
of your machine. Fold out the extender, if necessary.
Document exit tray
Extender
Set Up Your Machine
1.5