HP LaserJet 9000 Printer series - Manual (Page 16)

16 2 Finisher tasks ENWW
Macintosh
1 Click File and then click Print.
2 On the drop-down menu, select Layout, and then select Print on
Both Sides.
3 Select Plug-In Preferences.
4 Select Print Time Filters, select Booklet, and then click Save
Settings.