45488801
Compatible Oki 45488801 Black Toner Cartridge
18,000 pages
$139.98
Oki B731dn toner
Your B731dn takes the 45488801 (standard yield). At our price that is about 0.8¢ a page.
The Oki B731dn is a mono laser printer in the B731 series, which shares cartridges across 2 models.
The cartridge it takes is the 45488801, rated by Oki at about 18,000 pages, which works out to roughly 0.8¢ a page at our price of $139.98.
When you compare prices, compare cost per page rather than the sticker price: a cheaper cartridge with half the rated yield costs more to run. Every cartridge here ships free, is covered by our printer damage protection and can be returned within 90 days, opened or not.
Cartridges that fit
What it costs you a month
About $9.66 a month in toner, roughly one 45488801 every 3 months.
Questions about the B731dn
What toner does the Oki B731dn use?
The 45488801. Oki lists this cartridge as compatible with this model, and the yields on this page are Oki's published figures.
Does using a compatible cartridge void the B731dn warranty?
No. Under the Magnuson-Moss Warranty Act a manufacturer cannot void your warranty because you used a third-party cartridge. If one of ours damages the printer, our printer damage protection covers the repair.
Other Oki B731 models
Most of these share the same cartridges. Check the model page to be sure.
Guides for Oki owners
Not your model?
Find your cartridge
or pick your printer
Page updated Sep 23, 2026. Compatibility checked by Dan Whitaker, Print Technician. Brand names and part numbers are used only to identify compatibility. We are not affiliated with or endorsed by any printer manufacturer.