Oki B412dn User Manual page 55

4.
Change other settings if necessary, and then click [Print].
Printing starts.
For Mac OS X PCL Printer Driver
1.
Select [Print] from the [File] menu.
2.
Select [Setup] from the panel menu.
3.
Select [Long-Edge Binding] or [Short-Edge Binding] from [Duplex].
4.
Change other settings if necessary, and then click [Print].
Printing starts.
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