Duplex or double sided printing depending on your printer and the printer driver.
If you are able to do double sided printing from other applications such as Microsoft Word then you will be able to do so from NBS.
Every printer manufacturer is different and they all set out their drivers differently. We have set out the steps based on our testing.When you see the print settings window click on the Properties button.
As you can see in the screenshot below there is an option for Print on both sides. If you select either Flip on Long Edge or Flip on Short Edge your document will print double sided.
Click OK to close the Properties dialog box, and then click OK again to close the Print dialog box and print your document.