Epson Stylus PHOTO 950 User Manual page 226

8. Once the paper is reloaded, click Resume to print the
even-numbered pages.
Folded Booklet double-sided printing
You can also make single-fold booklets using the double-sided
printing feature. To create a single-fold booklet, the pages that
appear on the outside (after the booklet is folded) are printed first.
The pages that will appear inside the booklet can then be printed
after the paper is reloaded into the printer as shown in the
illustration below.
Binding Edge
217
Using the Printer Software for Macintosh
2 4
1 3 5 7
Single-fold booklet
6 8 10 12
9 11