Epson EPL-8000 User Manual page 120

Using the Optional Lower Paper Cassette
7. Insert the paper cassette straight into the front of the printer in
the lower position and push it firmly into place.
Note:
Insert the adjustable paper cassette in the lower position
only. It does not fit in the standard paper cassette slot.
To feed paper from the optional lower paper cassette, you need to
change the input setting in your software or change the SelecType
INPUT option. See Chapter 3 for information.
With the optional unit installed, the right side of the display
shows the size of paper in each cassette. For example, -- A4
indicates the standard cassette is empty, and A4 paper is in the
optional cassette.
Paper Handling
4-14