Epson Stylus Photo 1290 User Manual page 124

Note:
The double-sided printing feature is not available when the printer
is accessed over a network, or used as a shared printer.
You can load up to 30 sheets of paper at one time when double-sided
printing; however, the loading capacity of the sheet feeder varies,
depending on the media type.
Only use media types which are suitable for double-sided printing.
Otherwise, the printout quality may deteriorate.
Depending on the type of paper and the amount of ink used to print
text and images, ink may bleed through to the other side of the paper.
Standard double-sided printing
Follow the steps below to print first the odd-numbered pages, and
then the even-numbered pages after you have reloaded the
printouts.
1. Select the Double-Sided Printing check box in the Page Setup
dialog box. For information on accessing the Page Setup
dialog box, see "Making settings in the Page Setup dialog
box" on page 5-19.
5-26
Using the Printer Software for Macintosh