What Toner Does the Brother HL-L8430CDWT Use?
Nov 5th 2026
Quick Answer: The Brother HL-L8430CDWT uses TN635 standard-yield toner (about 3,000 pages black / 1,800 per color), TN635XL high-yield toner (5,500 / 4,500), or TN635XXL super high-yield toner (7,500 / 6,500), in black, cyan, magenta and yellow. The drum unit is the DR635CL, rated around 30,000 pages.
A Printer Bought for Its Trays
The "T" in this model name is the whole point of the machine. Where the standard HL-L8430CDW carries a single 250-sheet tray, the CDWT stacks a 250-sheet tray and a 520-sheet tray together — 770 sheets of drawer capacity, plus the 50-sheet multipurpose tray for envelopes and letterhead, and headroom to reach 1,340 sheets with a further optional tray. Offices buy it to keep letter and legal, or plain and pre-printed stock, loaded at the same time.
That paper story shapes the toner story. A printer stocked with 820 sheets is a printer expected to run long jobs without babysitting, and long jobs argue for the bigger cartridges: the XL tier as the everyday choice, the XXL if the machine feeds a whole department.
The Three Tiers at Our Prices
| Cartridge | Yield | Our compatible price* | Cost per page |
|---|---|---|---|
| TN635BK (black) | ~3,000 pages | $50.80 | ≈1.7¢ |
| TN635C / M (each) | ~1,800 pages | $50.80 | ≈2.8¢ |
| TN635Y | ~1,800 pages | $47.34 | ≈2.6¢ |
| TN635XLBK (black) | ~5,500 pages | $53.30 | ≈1.0¢ |
| TN635XLC / M (each) | ~4,500 pages | $53.30 | ≈1.2¢ |
| TN635XLY | ~4,500 pages | $46.48 | ≈1.0¢ |
| TN635XXLBK (black) | ~7,500 pages | $76.47 | ≈1.0¢ |
| TN635XXLC / M / Y (each) | ~6,500 pages | $76.47 | ≈1.2¢ |
*Prices checked on our product pages on November 2, 2026; they can change. Yields are Brother's ratings.
Like its single-tray twin, this model arrives with full standard-yield cartridges in the box (3,000 pages black, 1,800 per color) — no starter set to burn through first. When replacement time comes, note the plateau in the right-hand column: XL and XXL deliver the same cost per page at current prices. The XXL's extra $23 over the XL black buys 2,000 more pages per swap, not cheaper pages. On a high-capacity machine, fewer swaps is a legitimate thing to buy — just know that uptime, not unit cost, is what the money gets.
Every Cartridge, Color by Color
- Black: TN635BK · TN635XLBK · TN635XXLBK
- Cyan: TN635C · TN635XLC · TN635XXLC
- Magenta: TN635M · TN635XLM · TN635XXLM
- Yellow: TN635Y · TN635XLY · TN635XXLY
Swapping a Cartridge
Leave the machine on, open the front cover and slide the drum assembly out. Press the green lock lever for the color shown on the display, lift the spent cartridge clear, and rock the replacement side to side before removing its cover. Seat it in the same slot until it clicks, return the assembly, and close the cover. The whole job takes about a minute — considerably less time than refilling both paper trays.
Sets, or the Lack of Them
A boxed option does exist here: the TN635XL four-color set runs $158.14, which undercuts by $48.24 the $206.38 total of its four cartridges purchased separately, and companion sets are stocked at the standard and XXL levels too. Choose it when this twin-tray machine is chewing through several colors at once and you want one delivery to reset every gauge. Choose singles when the wear is lopsided — black sprinting ahead of the colors, as it usually does with two trays of everyday documents — and simply keep a spare XL or XXL black within reach.
Drum, Belt and Waste Box
One DR635CL drum unit (about 30,000 pages) carries all four cartridges. Behind it, the BU635CL belt unit and the WT229CL waste toner box are each rated around 50,000 pages. We do not sell compatible versions of these parts today, so they are listed here without links — genuine-part purchases when their turn comes, each forecast on the display well in advance.
Frequently Asked Questions
Is the HL-L8430CDWT just the CDW with a tray bolted on? Essentially, yes — same 33 ppm engine, same cartridges, same connectivity (dual-band Wi-Fi and Gigabit Ethernet). The difference is the factory dual-tray configuration, which is why every supply that fits one fits the other.
Which tray should hold which paper? A common arrangement is everyday letter in the big 520-sheet tray and legal or letterhead in the 250. The printer selects by the size and type set for each job; toner consumption follows whichever stock you print most.
Does the TN637 fit this model? No. Brother restricts the TN637 ultra high-yield series to the HL-L8570CDW, MFC-L8970CDW and MFC-EX575. The ceiling here is the TN635XXL.
With two trays, do I need twice the toner on hand? No — paper capacity and toner capacity are independent. But a full 820-sheet load is roughly a quarter of a standard black cartridge, so high-volume sites should keep one spare black within reach.
When does the drum need replacing relative to the trays' workload? The DR635CL's roughly 30,000-page rating equals about 36 full dual-tray loads — the display tracks it by pages printed, not by tray.
brother tn635xl tn635xlbk tn635xlc tn635xly tn635xlm toner c
brother tn635 tn635bk toner cartridge black
brother tn635xl tn635xlbk toner cartridge black
brother tn635xxl tn635xxlbk toner cartridge black
brother tn635 tn635c toner cartridge cyanKey takeaways
- The top cartridge here is rated at 7,500 pages — fewer swaps between changes.
- Lowest cost per page in this family: ~1¢ with the TN635XL black.
- Toner and drum are separate parts on this printer — replace only the one the printer asks for.
Other Printers That Use TN635
Sharing this supply family: the HL-L8430CDW, HL-L8570CDW, MFC-L8730CDW, MFC-L8930CDW, MFC-L8970CDW and MFC-EX575. All the cartridges linked on this page fit every one of them; only the TN637 caveat separates the family — that ultra tier belongs to the HL-L8570CDW, MFC-L8970CDW and MFC-EX575 alone.
The full shelf for this model lives on our HL-L8430CDWT toner page.