For the following Printers (Click to link)
Oki C301dn
Oki C321dn
Oki C331dn
Oki C332dn
Oki C511DN
Oki C531DN
Oki MC342dnw
Oki MC362DNW
Oki MC363dn
Oki MC562DNW
44968302 Oki Drum for the above Oki printers.
Up to 30,000 pages black and 20,000 pages colour @ 3 pages per job simplex mode average printing.