HL-3140CDW

The HL-3140CDW is the connected one in its family: an 18 ppm color laser with automatic duplex printing and a choice of Wi-Fi, Ethernet or USB, so a small workgroup can place it wherever it fits rather than wherever a cable reaches. Standard-yield printing runs on the TN221 series — the TN221BK (TN-221BK) black at about 2,500 pages and the TN221C, TN221M and TN221Y colors at roughly 1,400 pages each — while the high-yield TN225 colors, TN225C, TN225M and TN225Y, stretch each color to about 2,200 pages.

Wireless changes how a shared printer gets used: laptops join it from any desk, the machine can live on a shelf instead of beside a router, and 64MB of memory keeps mixed queues of letters, reports and color handouts moving. Automatic two-sided output trims paper use on anything longer than a page or two. For a small team this is typically the only color printer in the room, which makes a sensible cartridge shelf — one black plus the colors you burn through fastest — worth keeping stocked.

Toner Cartridges for HL-3140CDW

Cartridge	Color	Page Yield
TN221BK	Black	2,500 pages
TN221 Black	Black	2,500 pages
TN221 Magenta	Magenta	1,400 pages
TN221 Yellow	Yellow	1,400 pages
TN225C	Cyan	2,200 pages
TN225M	Magenta	2,200 pages
TN225Y	Yellow	2,200 pages
TN-225Y (single listed as Cyan in the catalog)	Yellow code	See product page
TN221BK (Genuine OEM)	Black	2,500 pages
TN221C (Genuine OEM)	Cyan	1,400 pages
TN221M (Genuine OEM)	Magenta	1,400 pages
TN221Y (Genuine OEM)	Yellow	1,400 pages
TN225C (Genuine OEM)	Cyan	2,200 pages
TN225M (Genuine OEM)	Magenta	2,200 pages
TN225Y (Genuine OEM)	Yellow	2,200 pages
TN221 Black 2 Pack	Black	2,500 pages each
TN221 2 Black (TN-221BK)	Black	2,500 pages each
TN221 3 Black (TN-221BK)	Black	2,500 pages each
TN221-TN225 Black 3 Pack	Black	2,500 pages each
TN221 5 Black (TN-221BK)	Black	2,500 pages each
TN221-TN225 Black 5 Pack	Black	2,500 pages each
TN221BK Genuine OEM 2 Pack	Black	2,500 pages each
TN221-TN225 High Yield 4 Color Set	Set (black + 3 colors)	Black 2,500 / colors 2,200 each
TN221-TN225 Premium 4 Color Set	Set (black + 3 colors)	Black 2,500 / colors 2,200 each
TN221-TN225 (TN-221BK, TN-225C, TN-225M, TN-225Y) 4 Color Set	Set (black + 3 colors)	Black 2,500 / colors 2,200 each
TN221-TN225 4 Color Set (second listing)	Set (black + 3 colors)	Black 2,500 / colors 2,200 each
TN221-TN225 (TN-225C, TN-225M, TN-225Y) 3 Color Set	Set (3 colors)	2,200 pages each
TN225 3 Color Set (TN-225C, TN-225M, TN-225Y)	Set (3 colors)	2,200 pages each
TN221C / TN221M / TN221Y Genuine OEM 3 Color Set	Set (3 colors)	1,400 pages each
TN221-TN225 5 Color Set	Set	Black 2,500 / colors 2,200 each
TN221-TN225 5 Color Set (TN221BK, TN225C, TN225M, TN225Y)	Set	Black 2,500 / colors 2,200 each
TN221-TN225 5 Color Set (second listing)	Set	Black 2,500 / colors 2,200 each
TN221-TN225 6 Color Set	Set	Black 2,500 / colors 2,200 each
TN225 6 Color Set	Set	Black 2,500 / colors 2,200 each
TN221-TN225 8 Color Set	Set	Black 2,500 / colors 2,200 each
TN225 (TN-221BK, TN-225C, TN-225M, TN-225Y) 8 Color Set	Set	Black 2,500 / colors 2,200 each
TN221BK / TN221C / TN221M / TN221Y Genuine OEM 4 Color Set	Set (black + 3 colors)	Black 2,500 / colors 1,400 each

Which cartridge should you buy?

The fork in this range is standard yield against high yield. A TN221 color gives about 1,400 pages; the matching TN225 gives roughly 2,200, so anyone printing color weekly usually lands on the high-yield line and changes cartridges less often. Black is its own calculation: the TN221BK single covers light use, while the multi-black packs suit offices that empty a black cartridge every month or two and would rather stock up once. When several slots run dry together, the four-color sets reset the whole machine in a single order; when only one color fades, replace that color alone and let the rest run. Genuine Brother cartridges are listed beside the compatibles throughout, and every compatible here is covered by a 1-year warranty with 1-year returns.

Chip, toner and everyday use

The printer tracks each cartridge through its chip and estimates the pages remaining from coverage counted so far, not from a calendar, so two identical cartridges can report different lives in different offices. After a swap, give the HL-3140CDW a moment to recognize the new cartridge before sending a long job. Yield figures are measured at about 5% page coverage; brochures and charts with heavy color will land well short of the rating, while plain letters can run past it. A cartridge that prints light streaks near the end of its life often recovers for a few dozen pages if you remove it and tilt it gently from side to side to level the toner. Store replacements in their sealed bags, flat, in a cool drawer.

Frequently Asked Questions

What is the difference between the TN221 and TN225 cartridges?

They fit the same slots. The TN221 colors are the standard-yield line at about 1,400 pages each, while the TN225 colors are the high-yield versions at roughly 2,200 pages; the black is the TN221BK at about 2,500 pages in both lineups.

Can the HL-3140CDW print on both sides automatically?

Yes — automatic duplex printing is built in, so two-sided documents come out finished without anyone flipping the stack by hand. It is one of the features that separates this model from the entry-level machines in its line.

One color has run out. Do I have to change all four cartridges?

No. Each color is its own cartridge, and the machine only needs the empty one replaced. The sets on this page exist for the moments when several cartridges finish close together, or for stocking a shelf in a single order.

The printer says toner is low, but my prints still look fine. Should I swap now?

Not necessarily. The low warning is an estimate based on the coverage counted so far, and a cartridge commonly keeps printing well past its first warning. Keep a spare ready, and change the cartridge when print quality actually fades rather than the moment the message appears.