You can print a variety of design paper by using the patterns stored in the printer, such as borders and polka dots. This allows you to use the paper in a variety of ways, such as creating homemade book covers, wrapping paper, and so on. Visit the following website for details on how you can create your own items.

Various Prints > Personal Stationery > Design Paper
Epson Creative Print allows you to print design paper with a variety of patterns.
You can install it from the home screen of Epson Smart Panel.