Oki C9850hdn Advanced User's Manual page 51

If you want to set the Output Profile option to Use Media Defined Profile, you must
first make sure Two-Way Communication is not enabled, and then you can select Use
Media Defined Profile from the drop-down list for Output Profile. Enable Two-Way
Communication if you want to be able to select specific downloaded output profiles.
16. Specify the colour settings for the print job and click OK.
17. To shift the position of the print image on the page, choose Image Shift from the
drop-down list and specify the shift distances.
You might need to shift the print image to allow for binding, for example.
18. To specify a margin value (millimeters or inches) at the folding line for imposition
printing, choose Center Margins from the drop-down list.
NOTE
Center Margins is only available with the Booklet Maker print option.
Printing from Mac – PostScript > 51