TN360
Compatible Brother TN360 Black High Yield Toner Cartridge
2,600 pages
$20.99
Save 63% vs genuine
Brother MFC-7840W toner and drum
Your MFC-7840W takes the TN360 (high yield), plus the DR360 drum. At our price that is about 0.8¢ a page.
The Brother MFC-7840W is a mono laser printer in the MFC-7800 series, which shares cartridges across 5 models.
The cartridge it takes is the TN360, rated by Brother at about 2,600 pages, which works out to roughly 0.8¢ a page at our price of $20.99.
The drum is a separate part on this printer. The DR360 is rated for about 12,000 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
DR360
Compatible Brother DR360 Drum Unit
12,000 pages
$36.99
Save 72% vs genuine
What it costs you a month
About $9.66 a month in toner, roughly one TN360 every 3 months.
Questions about the MFC-7840W
What toner does the Brother MFC-7840W use?
The TN360. Brother lists this cartridge as compatible with this model, and the yields on this page are Brother's published figures.
Does the MFC-7840W have a separate drum?
Yes. The DR360 drum unit is a separate part rated for about 12,000 pages. Replace it when the printer reports drum life, not when you change toner.
Does using a compatible cartridge void the MFC-7840W 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-7800 models
Most of these share the same cartridges. Check the model page to be sure.
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Page updated Sep 22, 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.