MFC-9340

The Brother MFC-9340 is the flagship of its color laser family, and its signature trick is single-pass duplex scanning and faxing: a two-sided original is captured in one trip through the feeder instead of being flipped and re-fed. Feeding that engine is a four-slot job. Black runs on the TN221BK (TN-221BK) cartridge, rated at about 2,500 pages, and the standard colors beside it are the TN221C cyan, TN221M magenta and TN221Y yellow at roughly 1,400 pages each — the standard-yield TN221 tier. Offices that burn through color faster can step up to the high-yield TN225 tier, where the TN225C, TN225M and TN225Y stretch each color slot to about 2,200 pages. The two tiers fit the same four slots, so they can be mixed color by color.

Everything about this model points at a busy small office that still scans and faxes paper in volume. The color engine prints at 23 ppm and turns pages over automatically for two-sided output, 256MB of memory smooths out complex jobs, and the 35-sheet automatic document feeder takes a stack of originals without babysitting. A machine that chews through contracts, invoices and signed forms all day empties color slots unevenly — one project color always goes first — which is exactly why its cartridges are sold as separate singles as well as sets.

Toner Cartridges for MFC-9340

Which cartridge should you buy?

Start with the slot, not the set. Black has a single tier on this machine — the 2,500-page black cartridge — so the real decision is in the colors. If your color work is occasional (a logo here, a chart there), the standard colors at about 1,400 pages each are the sensible buy, and you replace only the slot that runs dry. If color pages are a daily habit, the high-yield colors at roughly 2,200 pages cost less per page and stretch the gap between changes by more than half. You do not have to pick one tier for the whole machine: a heavy cyan user can run the high-yield cyan beside standard magenta and yellow. Full four-color sets make sense when several slots run low together or when you want one spare of everything on the shelf; singles win when a single color keeps quitting early.

Chip, toner and everyday use

Each cartridge carries a chip the printer reads to confirm the part and track its level, so seat a new cartridge firmly until it clicks and let the machine recognize it before starting a big job. The four slots are color-keyed — a cartridge physically belongs to one position, and the display names the slot that needs attention. Page counts are estimates figured at 5% page coverage, the industry yardstick; a deck full of color charts will empty a cartridge well before its rated number, while plain memos can run past it. When one color fades, a gentle rock of that cartridge from side to side redistributes the toner inside and often buys a few more clean pages while the replacement ships.

Frequently Asked Questions

Which toner cartridges does the Brother MFC-9340 use?

It uses the TN221BK black cartridge (about 2,500 pages) with TN221C, TN221M and TN221Y standard colors (about 1,400 pages each), or the high-yield TN225C, TN225M and TN225Y colors (about 2,200 pages each) in the color slots. The standard and high-yield tiers fit the same slots and can be mixed.

Is there a high-yield black cartridge for the MFC-9340?

No. On this machine the high-yield tier covers only the three colors; black stays with the TN221BK at its 2,500-page rating. If black volume is your bottleneck, keeping a spare black cartridge on hand is the practical answer, and multi-packs of the black cartridge are listed on this page.

Can I replace just one color at a time?

Yes. Each color is its own cartridge in its own slot, and the printer reports them separately. Replace the single color the display flags and leave the others in place — there is no need to swap a matched set when only one slot is empty.

Are the cartridges on this page original Brother or compatible?

Both kinds are listed. The page carries compatible replacements for the TN221 and TN225 cartridges alongside genuine Brother OEM cartridges, and each listing is labeled so you can tell which you are buying; the compatible cartridges carry a 1-year warranty and 1-year returns.

More printers that use the same cartridges

The same cartridge family feeds a wide bench of Brother color lasers and multifunction machines, including the cartridge family page itself:

Brother-TN221-TN225, DCP-9020, DCP-9020CDN, DCP-9020CDW, HL-3140, HL-3140CDW, HL-3140CW, HL-3150, HL-3150CDN, HL-3150CDW, HL-3170, HL-3170CDW, HL-3180CDW, MFC-9130, MFC-9130CDW, MFC-9130CW, MFC-9140CDN, MFC-9330, MFC-9330CDW, MFC-9330CW, MFC-9340CDW, MFC-9340CW