Canon MX390 series Online Manual page 16

4. Complete the setup
Click OK on the Page Setup tab.
When you execute print, the data is printed with the specified staple side and margin width.
Important
Stapling Side and Specify Margin... appear grayed out and are unavailable when:
Borderless, Tiling/Poster, or Booklet is selected for Page Layout
Scaled is selected for Page Layout (When Duplex Printing (Manual) is also selected, only
Stapling Side can be specified.)