Brother TN221BK Black Toner Cartridge – Compatible

Brother TN221BK Black at a glance: one compatible black toner cartridge rated at about 2,500 pages. Newly manufactured to Brother's specifications, it fits 7 Brother color laser printers, including the HL-3140CW, HL-3170CDW and MFC-9340CDW. It installs into the DR221CL-BK black drum unit already in your printer (drum not included). Backed by our 100% satisfaction guarantee; orders by 4 PM ET (Mon–Fri) ship the same day from Georgia.

Key Facts

What's in the Box

• 1 × Brother TN221BK Black compatible toner cartridge — about 2,500 pages

Page yields are the manufacturer's rating for the matching original cartridge, measured at roughly 5% page coverage under ISO/IEC 19798 testing. Your results will vary with what you print.

Compatible Printers (7 models)

• Brother HL-3140CW
• Brother HL-3150CDW
• Brother HL-3170CDW
• Brother HL-3180CDW
• Brother MFC-9130CW
• Brother MFC-9330CDW
• Brother MFC-9340CDW

Not sure? Look up your exact model on our Find Ink by Printer page, or contact us and we'll confirm the right toner for you.

Printer guides: HL-3170CDW toner guide · MFC-9340CDW toner guide

Will Not Fit

• TN221 vs. TN210: the older HL-3040CN, HL-3070CW and MFC-9320CW use TN210BK, not TN221BK.
• TN221 vs. TN227/TN223/TN229: the newer HL-L3210CW, HL-L3230CDW, HL-L3270CDW, HL-L3290CDW, MFC-L3710CW, MFC-L3750CDW and MFC-L3770CDW use TN227 or TN223; the 2023-and-later HL-L3280CDW / MFC-L3780CDW family uses TN229XL.
• No TN225 black: Brother makes TN225 in cyan, magenta and yellow only. TN221BK is the black for these printers.
• Not the Konica Minolta TN221K: same number, different printer brand (bizhub C227/C287). It does not fit Brother printers.

Part Numbers & Also Known As

Also searched for as: TN221BK, TN-221BK, TN221, TN-221, Brother TN221 black, Brother TN-221 black toner, HL-3170CDW black toner, MFC-9340CDW black toner, HL-3140CW toner.

Chips, Printer Messages & Installation

Installing: open the top cover and lift out the black toner-and-drum assembly. Push down the green lock lever to release the empty toner from the drum, gently rock the new cartridge side to side, remove the protective cover, and click it into the drum until it locks. Slide the green corona wire tab back and forth a few times, then reinstall.

"Replace Toner" after a new cartridge: make sure the cartridge is fully clicked into the drum and the cover is closed; these printers read the toner with a sensor, so a firmly seated cartridge clears the message. If the printer still won't take it, see our guide to fixing a cartridge that isn't recognized or contact us.

Quality: Compatible, Newly Manufactured

This is compatible toner: newly manufactured by a third party to the original's size, chip and page-yield specifications, and tested before it ships. It is not a refilled original. Castle Ink sells compatible (newly manufactured) toner and drums, and remanufactured inkjet cartridges.

Other Options for the Same Printers

• Brother TN225C high-yield cyan
• Brother TN225M high-yield magenta
• Brother TN225Y high-yield yellow
• Brother DR221CL-BK black drum unit
• Brother DR221CL drum units, BKCMY 4-pack

Frequently Asked Questions

How many pages does the Brother TN221BK print?

About 2,500 pages, based on Brother's ISO/IEC 19798 rating for the original TN221BK at roughly 5% coverage.

Is there a high-yield TN225 black?

No. Brother makes TN225 in cyan, magenta and yellow only. The black for these printers is TN221BK, which already prints about 2,500 pages.

Which drum does it use?

Each color has its own DR221CL drum. The black toner goes in the DR221CL-BK drum, sold separately and replaced far less often than the toner.

Does TN221BK fit the HL-L3270CDW or HL-3070CW?

No. The HL-L3270CDW uses TN227/TN223 and the HL-3070CW uses TN210. TN221BK fits only the 7 models listed above.

Will this void my printer warranty?

No. Under the U.S. Magnuson-Moss Warranty Act, a manufacturer can't void your printer warranty just because you used a third-party supply. If a non-original supply directly caused damage, that specific repair might not be covered.

When will my order ship?

Orders placed by 4 PM ET, Monday through Friday, ship the same business day from Georgia, by USPS (2–5 business days). Shipping is $6.95 on orders under $50 and free over $50; expedited 1–2 business day delivery is $25.

Shipping & guarantee: ships the same business day when ordered by 4 PM ET (Mon–Fri) from Georgia; USPS 2–5 business days, $6.95 under $50 and free over $50 (expedited 1–2 business days, $25). Covered by our 100% satisfaction guarantee. Castle Ink has served 100,000+ customers and shipped 500,000+ cartridges since 2005, and is BBB-accredited.

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