MFC-9340CW Toner | Compatible Brother TN221 / TN225

MFC-9340CW

The MFC-9340CW is the color all-in-one at the top of this Brother family — print, copy, scan and fax in one machine — and its black slot is filled by the TN221BK cartridge, which Brother also lists under its hyphenated TN-221BK label. Color is where this model stretches its legs: the high-yield TN225C cyan, TN225M magenta and TN225Y yellow cartridges are each rated at about 2,200 pages, against 1,400 pages each for the standard-yield TN221C, TN221M and TN221Y. Offices that refresh all four slots together usually start from the TN225 set listings below, while the standard TN221 black listing covers lighter mono work.

What sets this machine apart in its line is the scanner: single-pass duplex scanning works through two-sided originals in one pass, alongside 23 ppm color printing and automatic duplex output. With a 35-sheet ADF, 256MB of memory and full fax on board, it suits offices that scan and fax double-sided documents every day rather than occasionally. That workload shapes the supply choice — a machine fed two-sided paper all day burns color steadily, which is why the high-yield color line matters more here than on the smaller siblings.

Toner Cartridges for MFC-9340CW

Cartridge	Color	Page Yield
TN221BK	Black	2,500 pages
TN225C	Cyan	2,200 pages
TN225M	Magenta	2,200 pages
TN225Y	Yellow	2,200 pages
TN221	Black	See product page
TN221 Magenta	Magenta	See product page
TN221 Yellow	Yellow	See product page
TN221BK Black 2 Pack	Black	See product page
TN221 2 Black	Black	See product page
TN221 3 Black	Black	See product page
TN221 5 Black	Black	See product page
TN221BK Black 5 Pack	Black	See product page
TN221BK Black 3 Pack	Black	See product page
TN221BK (Genuine)	Black	2,500 pages
TN221BK (Genuine) 2 Pack	Black	2,500 pages
TN221C (Genuine)	Cyan	1,400 pages
TN221M (Genuine)	Magenta	1,400 pages
TN221Y (Genuine)	Yellow	1,400 pages
TN225C (Genuine)	Cyan	2,200 pages
TN225M (Genuine)	Magenta	2,200 pages
TN225Y (Genuine)	Yellow	2,200 pages
TN225Y (listed as Cyan)	Yellow	See product page
TN221/TN225 4 Color Set	Set	See product page
TN221/TN225 Premium 4 Color Set	Set	See product page
TN221 4 Color Set (Genuine)	Set	2,500 black / 1,400 color
TN221 3 Color Set (Genuine)	Set	1,400 pages each
TN225 8 Color Set	Set	See product page
TN225 3 Color Set	Set	See product page
TN225 6 Color Set	Set	See product page
TN221-TN225 3 Color Set	Set	See product page
TN221-TN225 5 Color Set	Set	See product page
TN221-TN225 6 Color Set	Set	See product page
TN221-TN225 4 Color Set	Set	See product page
TN221-TN225 5 Color Set (no-hyphen listing)	Set	See product page
TN221-TN225 5 Color Set (alternate listing)	Set	See product page
TN221-TN225 8 Color Set	Set	See product page
TN221-TN225 4 Color Set (alternate listing)	Set	See product page

Which cartridge should you buy?

Black is the simple side: TN221BK is the only black cartridge this model takes, rated at 2,500 pages, and heavy mono users cover volume with the 2, 3 and 5-black multipacks rather than a bigger cartridge — there is no high-yield black on this shelf. Color is a genuine fork. The standard TN221 colors (1,400 pages each, stocked here as genuine singles) suit offices whose color output is the occasional chart or letterhead. The TN225 high-yield colors (2,200 pages each, stocked as compatible singles and in sets) stretch the gap between swaps on a machine that prints color daily. If all four slots run low together, a four-color set is the tidy reset; if only one color fades, replace that single and leave the rest.

Chip, toner and everyday use

Each cartridge carries its own chip, and the MFC-9340CW reads them one slot at a time — a new cartridge that is not recognized at first usually just needs to be lifted out and reseated firmly until it clicks. Yields are rated at 5% page coverage, so a cartridge feeding dense duplex reports will land short of its headline number while a text-light office may pass it. Keep spare colors sealed until the day they go in, store them flat and out of direct light, and when one color starts striping, a gentle rock of that cartridge from side to side can level the toner inside and finish the job in hand.

Frequently Asked Questions

Which cartridges does the MFC-9340CW use?

Black is TN221BK. Colors come in two capacities: standard-yield TN221C, TN221M and TN221Y, or high-yield TN225C, TN225M and TN225Y when you want fewer swaps. Both lines fit this machine, and the two capacities can be mixed slot by slot.

Is there a high-yield black cartridge for this model?

Not on this shelf — black tops out with TN221BK at about 2,500 pages. The practical answer for heavy black volume is the multipack listings (2, 3 or 5 blacks), which keep a spare on hand at a lower per-cartridge cost.

Do I have to replace all four colors at once?

No. Every color is its own cartridge with its own chip and its own counter, so a spent yellow never forces you to touch cyan or magenta. Sets exist for the times when several slots genuinely run down together.

Are the cartridges on this page compatible or genuine?

Both kinds are listed. The compatible singles and sets carry a 1-year warranty and 1-year returns, and genuine Brother singles are stocked alongside them — the table marks the genuine rows so you can choose deliberately.