Lexmark XC9455
For Windows users
With a document open, click File > Print.
Select a printer, and then click Properties, Preferences, Options, or Setup.
Click Paper/Finisher.
If necessary, configure the Paper settings.
In the Finishing menu, select the fold setting.
Click OK or Print.
For Macintosh users
With a document open, choose File > Print.
Select a printer, and then from the drop-down menu following the Orientation menu, choose Finishing.
Click Fold, and then select a setting.
Click Print.