TN810BK
Compatible Brother TN810BK Black Toner Cartridge
9,000 pages
$36.99
Save 70% vs genuine
Brother MFC-EX670W toner
Your MFC-EX670W takes the TN810BK (standard yield), TN810C (standard yield), TN810M (standard yield), TN810XLBK (high yield), TN810XLC (high yield), TN810XLM (high yield), TN810XLY (high yield) and TN810Y (standard yield). At our price that is about 0.3¢ a page.
The Brother MFC-EX670W is a mono laser printer.
It takes two black cartridges that differ only in capacity: the TN810BK at about 9,000 pages and the TN810XLBK at about 12,000. At our prices that is 0.4¢ a page against 0.3¢, so the high-yield cartridge costs less to run unless you print very little.
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
TN810C
Compatible Brother TN810C Cyan Toner Cartridge
6,500 pages
$36.99
Save 80% vs genuine
TN810M
Compatible Brother TN810M Magenta Toner Cartridge
6,500 pages
$36.99
Save 80% vs genuine
TN810XLBK
Compatible Brother TN810XLBK Black High Yield Toner Cartridge
12,000 pages
$39.99
Save 75% vs genuine
TN810XLC
Compatible Brother TN810XLC Cyan High Yield Toner Cartridge
9,000 pages
$39.99
Save 84% vs genuine
TN810XLM
Compatible Brother TN810XLM Magenta High Yield Toner Cartridge
9,000 pages
$39.99
Save 84% vs genuine
TN810XLY
Compatible Brother TN810XLY Yellow High Yield Toner Cartridge
9,000 pages
$39.99
Save 84% vs genuine
TN810Y
Compatible Brother TN810Y Yellow Toner Cartridge
6,500 pages
$36.99
Save 80% vs genuine
Which yield is worth it
| Cartridge | Yield | Price | Per page |
|---|---|---|---|
| TN810BK | 9,000 pages | $36.99 | 0.4¢ |
| TN810C | 6,500 pages | $36.99 | 0.6¢ |
| TN810M | 6,500 pages | $36.99 | 0.6¢ |
| TN810XLBK High yield | 12,000 pages | $39.99 | 0.3¢ |
| TN810XLC High yield | 9,000 pages | $39.99 | 0.4¢ |
| TN810XLM High yield | 9,000 pages | $39.99 | 0.4¢ |
| TN810XLY High yield | 9,000 pages | $39.99 | 0.4¢ |
| TN810Y | 6,500 pages | $36.99 | 0.6¢ |
What it costs you a month
About $9.66 a month in toner, roughly one TN810XLBK every 3 months.
Questions about the MFC-EX670W
What toner does the Brother MFC-EX670W use?
The TN810BK, TN810C, TN810M, TN810XLBK, TN810XLC, TN810XLM, TN810XLY and TN810Y. Brother lists these cartridges as compatible with this model, and the yields on this page are Brother's published figures.
Does using a compatible cartridge void the MFC-EX670W 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.
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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.