How to Print on Both Sides of the Paper (When Using the PCL 5e Printer Driver)
Click the menu button of the application you are using, and then click [Print].
Select the printer you want to use.
Click [Preferences].
In the "Duplex:" list, select [Long Edge(Left/Top)] or [Short Edge(Top/Left)].
Change any other print settings if necessary.
Click [OK].
Start printing from the application's [Print] dialog box.