Canon MG6400 series Online Manual page 37

When you perform duplex printing, the print area of the document becomes slightly
narrower than usual and the document may not fit on one page.
Click Print Area Setup..., select one of the following process methods, and then click
OK.
Use normal-size printing
Print without reducing the page.
Use reduced printing
Reduce the page slightly during printing.
5. Specify the side to be stapled
The best Stapling Side is selected automatically from the Orientation and Page
Layout settings. To change the setting, select another stapling side from the list.
6. Set the margin width
If necessary, click Specify Margin... and set the margin width, and then click OK.
7. Complete the setup
Click OK on the Page Setup tab.
When you execute print, duplex printing will be started.
Performing Duplex Printing Manually
You can perform the duplex printing manually.
1. Open the printer driver setup window
2. Set duplex printing
Check the Duplex Printing check box and uncheck the Automatic check box on the
Page Setup tab.
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