Epson Stylus Pro 4000 Reference Manual page 99

Making Poster settings
A single page can be enlarged to cover 4, 9, or 16 printed sheets
of paper. Select Poster as the Multi-Page setting to print a
poster-size image.
Click Settings to adjust the way your poster will print. The Poster
Settings dialog box opens.
Printing with Windows
3
3
3
3
3
3
3
3
3
3
3
3
99