tn820 vs tn850 — same Brother black toner family for the same printers. The only real difference is page yield (and cost per page).
TN820 is the standard-yield black — about 3,000 pages. Buy this when you print lightly.
TN850 is the high-yield black — about 8,000 pages. Same fit. Fewer swaps. Better cost per page if the printer runs often.
| Feature | TN820 | TN850 |
|---|---|---|
| Black yield | ~3,000 | ~8,000 |
| Best for | Light / occasional | Regular office use |
| Printers | HL-L5000D / L5100DN / L5200DW / L6200DW / L6400DW; MFC-L5700DW / L5800DW / L5900DW / L6700DW / L6900DW family | |
Mono black only — there is no TN820 color pack. Not TN760 / TN660 / TN880 / TN890. Read the label on the cartridge already in the printer.
We sell a compatible TN820 black and a compatible TN850 high-yield black, chips installed.
When to buy which: replace toner more than a couple of times a year → start with TN850 (about 2.7× the pages). Occasional printing → TN820 is enough. If the label says TN850, stay on high yield unless you intentionally want fewer pages per cartridge.
FAQ
What is tn820 vs tn850 in one sentence?
Same Brother HL-L / MFC-L printers; TN820 is standard yield (~3,000), TN850 is high yield (~8,000).
Are TN820 and TN850 for the same printers?
Yes. Same family. Only the yield changes.
Is there a TN820 4-pack?
No. These are single black cartridges only.
Does compatible toner void the printer warranty?
Using a third-party cartridge does not by itself void Brother’s limited printer warranty. Damage Brother attributes to a non-Brother cartridge is a different question.
Ready to order: compatible Brother TN820 or compatible Brother TN850.