How do I print double-sided?

• For Macintosh computers, see Macintosh OS X 10.5 or Macintosh OS X 10.3 and 10.4. For Windows, do the following:
  
  1. Click Start, select Control Panel, then Printers and Faxes or Printers and Other Hardware.
  2. Click View Installed Printers (if applicable), right-click on your printer icon then select Printing Preferences.
  3. Click the Page Layout tab.
  4. Below 2-sided printing, choose Auto and click OK.