Epson GT-12000 User Manual page 66

7. Attach the Auto Document Feeder's connecter to the
scanner's option interface.
8. Peel off the backing from the stopper and from the paper out
support, which are provided with the Auto Document
Feeder. Then attach the stopper and paper out support to
the scanner as shown below.
9. Close the Auto Document Feeder.
3-20
Options