Oki ES 1624n MFP - Manual (Page 172)

Windows: PCL Emulation Driver • 172
3. On the Setup tab, under Finishing Mode , select Booklet in the
drop-down list.
4. Click Options , enter your settings, and click OK .
5. Click OK .
6. Windows 98/Me/NT4.0: click OK .
Windows XP: click Print .