Fujitsu C150-E140-03EN Operation Manual page 28

u Key point
When documents are actually read, the user can raise the Paper
Extension of the document support and pull out the stacker according
to the size of the documents. For information regarding the setup of
the document support and the stacker, see Section 2.4, "Setting up the
stacker and Document Support."
2-4 M3091DC Image Scanner Operation Guide