Epson Stylus Pro 7450 User Manual page 132

6. Select the document size created using the application from
the Page Size list and select the roll paper width set in the
printer for the Roll Width.
You can customize the paper size by selecting User Defined.
Paper width
Paper height
Note:
If you are using an application that supports banner printing, you
do not need to set the user-defined size if you select Roll Paper
(Banner) for the Source.
For EPSON Stylus Pro 9880/9880C/9450:
89 to 1118 mm
For EPSON Stylus Pro 7880/7880C/7450:
89 to 610 mm
127 to 15000 mm
Variety of Printings
132