TN850
Compatible Brother TN850 Black High Yield Toner Cartridge
8,000 pages
$22.99
Save 64% vs genuine
Brother MFC-L5850DW toner and drum
Your MFC-L5850DW takes the TN850 (high yield), plus the DR820 and DR890 drum. At our price that is about 0.3¢ a page.
The Brother MFC-L5850DW is a mono laser all-in-one in the MFC-L5800 series, which shares cartridges across 2 models.
The cartridge it takes is the TN850, rated by Brother at about 8,000 pages, which works out to roughly 0.3¢ a page at our price of $22.99.
The drum is a separate part on this printer. The DR820 is rated for about 30,000 pages, so it outlasts several toner cartridges and only needs replacing when the printer reports drum life, not every time you change toner.
Brother has stated publicly that its firmware updates do not block third-party cartridges, and the printer counts pages rather than measuring toner, which is why the Replace Toner message can appear before a cartridge is empty.
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
DR820
Compatible Brother DR820 Drum Unit
30,000 pages
$27.99
Save 82% vs genuine
DR890
Compatible Brother DR890 Drum Unit
50,000 pages
$39.99
Save 73% vs genuine
What it costs you a month
About $9.66 a month in toner, roughly one TN850 every 3 months.
Questions about the MFC-L5850DW
What toner does the Brother MFC-L5850DW use?
The TN850. Brother lists this cartridge as compatible with this model, and the yields on this page are Brother's published figures.
Does the MFC-L5850DW have a separate drum?
Yes. The DR820 drum unit is a separate part rated for about 30,000 pages. Replace it when the printer reports drum life, not when you change toner.
Does using a compatible cartridge void the MFC-L5850DW 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 Brother MFC-L5800 models
Most of these share the same cartridges. Check the model page to be sure.
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Page updated Sep 17, 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.