Brother TN350 Black Toner Cartridge – Compatible | Castle Ink

Brother TN350 Black at a glance: a black toner cartridge rated at about 2,500 pages. Compatible: newly manufactured to Brother's specifications. Fits the Brother HL-2040/2070N, DCP-7020, MFC-7220/7225N/7420/7820N and IntelliFax 2820/2910/2920. It installs in the separate DR350 drum unit. Backed by a 1-year 100% satisfaction guarantee; orders by 4 PM ET (Mon–Fri) ship the same day from Long Island, NY.

Key Facts

What's in the Box

• 1 × Brother TN350 compatible black 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 19752 or 19798 testing. Your results will vary with what you print.

Compatible Printers (10 models)

• Brother HL-2040
• Brother HL-2070N
• Brother DCP-7020
• Brother MFC-7220
• Brother MFC-7225N
• Brother MFC-7420
• Brother MFC-7820N
• Brother IntelliFax 2820
• Brother IntelliFax 2910
• Brother IntelliFax 2920

Don't mix these up: TN350 fits the HL-2040/2070N family. It is not the same as TN330/TN360 (HL-2140/HL-2170W) or TN450 (HL-2270DW).

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.

Part Numbers & Also Known As

This toner cartridge replaces or is also searched for as: TN350, Brother TN350, TN-350, TN350 toner, TN350 black toner, HL-2040 toner

Chips, Printer Messages & Installation

Installing: open the front cover and lift out the drum unit with the toner attached. Push down the green lock lever to release the empty toner from the DR350 drum, then rock the new toner gently side to side and remove its protective cover. Click it into the drum until the lever lifts, slide the corona wire tab back and forth a few times to clean it, and reinstall the assembly.

"Replace Toner" after a new cartridge: make sure the cartridge is fully clicked into the drum and the cover is closed. Brother printers read toner level with a sensor, so a firmly seated cartridge clears the message.

Toner vs. drum: this is the toner only. The DR350 drum is a separate part that lasts through several toner cartridges; replace it when the printer shows "Replace Drum" or prints get spotty.

Still stuck? See our guide to fixing a cartridge that isn't recognized or contact us and we'll make it right.

Compatible vs. Remanufactured vs. Original

Original (OEM) toner is new from the printer brand and costs the most. Compatible toner, like this cartridge, is newly manufactured by a third party to the original's size, chip and page-yield specifications, so it drops into the same slot at a much lower price. Remanufactured toner is an emptied original cartridge that has been rebuilt and refilled. Castle Ink sells compatible (newly manufactured) toner and remanufactured inkjet cartridges.

Other Options for the Same Printers

• Brother DR350 Drum Unit

Frequently Asked Questions

How many pages does the Brother TN350 print?

About 2,500 pages, based on Brother's rating for the original TN350 at roughly 5% coverage.

Which drum does it use?

TN350 installs in the DR350 drum unit, which is sold separately and lasts about 12,000 pages.

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 or remanufactured supply. If a non-original supply directly caused damage, that specific repair might not be covered.

How long can I store it?

Sealed toner keeps for about two years at room temperature. Keep it in its bag, away from heat and direct sunlight, and store it flat.

When will my order ship?

Orders placed by 4 PM ET, Monday through Friday, ship the same business day from Long Island, NY, by USPS (2–5 business days). Expedited 1–2 day delivery is available at checkout, and shipping is free on orders over $50.