Epson Expression 800 Reference Manual page 43

Do not remove the
protective foam
block until you've
finished tightening
the ADF's installation
screws (see step 4.)
Using Optional Equipment
3 Position the ADF's mounting slots over the two mounting screws
located at the back of the scanner. Slide the ADF forward slightly until
the two holes in front of these slots are aligned with the screw holes at
the back of the scanner.
line up these holes
with the screw holes
on the scanner
screw holes
on scanner
position the ADF's
mounting slots over
the two large screws
on the scanner
Page 43