Epson Stylus Pro 3880 User Manual page 80

See "Accessing the Printer Driver" on page 11.
3. Click the Page Layout tab, select the Multi-Page check box, select Poster, and then click
Settings.
4. In the Poster Settings dialog box, select the number of printed pages you want the poster to cover.
Note:
You can make a larger poster if you select a greater number for division.
Epson Stylus Pro 3880 User's Guide
Variety of Printings 80