Oki ES2426dn Reference page 66

Color Matching by selecting the No Color Matching option under
the Color Match option in the printer driver.
Separations
This option affects output only, allowing you to print all colors or
separate plates.
You must select a non-generic PostScript Printer
Description (PPD) file for a printer that supports color
separations.
Media Check
Sets whether the printer checks the matching of paper size to that
of the tray. Only standard sizes are checked.
Toner Saving
Checking this will enable toner saving but reduce print quality.
SeparationsOSX.jpg
NOTE
MediaCheckTonerSavePageRotate.jpg
66