Epson 24-Pin User Manual page 100

Paper menu
Paper size
Orientation
Paper source
4-6
Using the Printer Software
Select the size of the paper you want
to use. If you don't see your paper
size, use the scroll bar to scroll
through the list. If your paper size is
not included in the list, click Custom
and enter the paper size in the dialog
box that appears.
Select Portrait or Landscape.
Click the paper source you want to
use.