Use the following procedure to expand the printable area so that the whole page is used.
Note:
Print inside the 5mm margin around the paper edges might be of reduced quality.
Open the printing preferences dialog box after creating a document in an application.
Click the 2 Sided/Layout/Booklet menu on the Detailed Settings tab.
Select the Edge to Edge Print check box.
After making any other necessary settings, click OK to close the printing preferences dialog box.
Start printing.