SKU:

CS-Bro-OEM-TN-331-BK

Printer Brand:

Brother

OEM Number:

TN331BK

Ink Color:

Black

Page Yield:

Black:2500

Printer Type:

Laser Cartridge

Condition:

New

Frequently Asked Questions

TN331BK or TN336BK — how do I choose between the two blacks for this printer?

Both codes fit the same machines, so the choice is about volume, not fitment. This TN331BK is the standard-yield black: 2,500 rated pages at $91.19, about 3.6 cents a page. The TN336BK is the high-yield sibling at 4,000 pages and a noticeably lower cost per page. If your printer does a few hundred pages a month, the standard cartridge keeps less cash sitting in the slot and will still last you the better part of a year; if it prints all day, the high-yield wins on arithmetic alone.

What does a black page cost on the TN331BK?

Divide the price by the rating: $91.19 across 2,500 pages is roughly 3.6 cents of toner per page at the standard 5% coverage those ratings assume. Heavy pages — dense contracts, big blocks of text — use more, light memos use less, but as a comparison figure against the high-yield's 2.6 cents it is the honest number to plan a budget around.

Which printers run the TN331BK?

Five models from Brother's L8250/L8350 colour laser generation: the HL-L8250CDN, HL-L8350CDW and HL-L8350CDWT printers, and the MFC-L8600CDW and MFC-L8850CDW all-in-ones. It occupies the black slot beside the TN331C, TN331M and TN331Y colours — or beside high-yield colours, because on this platform the yield classes mix freely slot by slot.

The cartridge that came with my printer was a TN331 too — is this the same thing?

Same code, same slot, one difference: printers ship with a reduced-fill starter version of the TN331BK, while this is the full retail cartridge rated at the complete 2,500 pages. So if the starter seemed to run out quickly, that is expected behaviour rather than a fault — this replacement is the cartridge the rating on the box actually describes.

How do I know the black is truly finished and not just low?

The classic signs are text fading down the page or going grey in patches while the low-toner warning is lit. Lift the TN331BK out, rock it gently from side to side to redistribute what is left, refit it and print a test sheet; a brief, even recovery means days of grace, not weeks. Fading that comes straight back means the cartridge is spent — order against the warning, not against the blank page.

How are returns handled on this cartridge?

You have a 30-day window to send any genuine Brother cartridge back to us, in all circumstances, and warranty matters after that sit with Brother under its manufacturer warranty — both are spelled out on our shipping and returns page. The extended cover you may see elsewhere on this site belongs to our compatible range; genuine stock runs on these OEM terms.

About This Genuine Brother TN331BK Black Toner Cartridge

The genuine TN331BK — standard-yield black for the HL-L8250CDN to MFC-L8850CDW platform, rated at 2,500 pages and priced at $91.19 against a $127.67 list. It is the right-sized black for light and intermittent printing, where the high-yield's extra capacity would sit unused. The full genuine line-up is in the Brother range at Clever Supplies, and orders leave from our IL, PA, GA or CA warehouse.