1. Open the Word 2010 document you want to print.
  2. Select File > Print.
  3. Change from "Print One Sided" by selecting oneof the following:
    • Print on Both Sides (you only have this option if your printer has a built-in duplexer)
    • Manual Print on Both Sides
  4. Click Print.

If your printer has a built-in duplexer, but you don't see the option to Print on Both Sides:

  1. With File > Print selected, select Printer Properties.
  2. Select the Layout tab.
  3. In the "Two-sided printing" field, select Automatic, then click OK. 
  4. Click OK again to start the print request.