The Flagship's Supply Privilege

Within Brother's enterprise color platform, the cartridge ceiling is a tier marker. The MFC-L9670CDN sits at the top of the all-in-one range, and its Workhorse badge is what unlocks the TN815 super high-yield series; the mechanically similar MFC-L9610CDN is limited to the TN810XL. It also arrives properly fed: the box holds standard-yield cartridges rated 9,000 pages black and 6,500 per color, not cut-down starters, so a department can run for months before the first supply order.

That first order deserves a decision rather than a habit, because the three tiers behave very differently on price — see the table further down.

What 42 Pages a Minute, Both Sides, Does to a Toner Budget

This is the platform's most complete machine: print, copy, scan and fax, with simplex and duplex printing at the same up-to-42 ppm pace, a 100-page document feeder scanning two-sided at up to 104 images per minute, and an integrated NFC card reader with Secure Print+ so jobs wait for their owner's badge instead of piling up and being reprinted. Paper handling scales from the standard 520-sheet tray and 100-sheet multipurpose tray to 2,700 sheets with the tower tray.

Translate that into supplies and the pattern is simple: high throughput plus held-and-released printing means toner use is heavy but not wasteful. The waste in most offices is not pages printed — it is pages printed twice, and this model is engineered against exactly that.

Changing a Cartridge

1. Leave the power on and open the front cover. 2. Draw the drum unit assembly out toward you; the four cartridges sit in a row, each in a color-marked slot. 3. Press the green lock lever of the depleted color, lift that cartridge out, and rock its replacement gently from side to side. 4. Remove the new cartridge's cover, press it into the same slot until the lever clicks, slide the assembly home and close the cover.

Only ever change the color the machine names — the other three keep their own counters and their own remaining life.

The Numbers, Tier by Tier

Cartridge	Yield	Our compatible price*	Cost per page
TN810BK (black)	~9,000 pages	$206.51	≈2.3¢
TN810C / M / Y (each)	~6,500 pages	$310.53	≈4.8¢
TN810XLBK (black)	~12,000 pages	$50.72	≈0.4¢
TN810XLC / M / Y (each)	~9,000 pages	$50.72	≈0.6¢
TN815BK (black)	~15,000 pages	$256.15	≈1.7¢
TN815C / M / Y (each)	~12,000 pages	$362.72	≈3.0¢

*Prices checked on our product pages on November 2, 2026; they can change. Yields are Brother's ratings.

Brother markets the TN815 as the route to its lowest-ever laser color cost per page, and in genuine cartridges that is the design. On our compatible shelf today the arithmetic runs the other way: the TN810XL costs less per cartridge than the standard tier and delivers the lowest cost per page of the three — about 0.4 cents in black. So the honest recommendation for this flagship is the same as for its siblings: run TN810XL as the house standard, and reserve TN815 purchases for satellite machines where a 15,000-page black cartridge meaningfully reduces service visits.

Every Cartridge, Color by Color

• Black: TN810BK · TN810XLBK · TN815BK
• Cyan: TN810C · TN810XLC · TN815C
• Magenta: TN810M · TN810XLM · TN815M
• Yellow: TN810Y · TN810XLY · TN815Y

Sets Versus Singles at Fleet Scale

Our TN810XL four-color set is $154.66 against $202.88 for the four cartridges individually, a saving of about $48 that repeats every full cycle — across a fleet and a year, that is real money, and the single shipment simplifies receiving. The discipline to keep: replenish by the set only when the machine's own gauges say several colors are low together. A set bought to rescue one empty color strands three cartridges in a cupboard, where they help nobody. Singles remain the right tool for the one-color emergency.

The Long-Life Parts

Behind the toner sit three components on much longer clocks: the DR810CL drum unit (about 100,000 pages), the WT800CL waste toner box (about 100,000 pages) and the BU800CL belt unit (about 150,000 pages). Our catalog does not currently include compatible versions of these, so they are listed here for planning, deliberately unlinked. Expect the display to forecast each one well before it is due; none of them should ever be an emergency purchase.

Frequently Asked Questions

Does the MFC-L9670CDN scan both sides in one pass? Yes — the 100-page feeder scans two-sided at up to 104 images per minute, and scanning itself uses no toner; only the copies you print do.

Why does Brother call the TN815 its lowest cost per page if your XL is cheaper? That claim describes Brother's genuine cartridge pricing. Our compatible range is priced differently — the TN810XL currently undercuts the other tiers — which is why this page prices all three tiers side by side instead of repeating the slogan.

Can I standardize our whole fleet on one cartridge? If your fleet is all Workhorse models from this platform, TN810XL everywhere is a clean standard. If an MFC-L9610CDN or HL-L9410CDN is in the mix, the XL is still the common denominator — just never issue TN815 cartridges to those two models.

What is the USB memory stick in the box for? It works with Secure Print+ to store held jobs for badge release at the NFC reader — part of how this model cuts abandoned printing.

How often will the drum need attention? At roughly 100,000 pages, a department printing 8,000 pages a month crosses a year between drum changes; the machine reports remaining life on its supply screens.

Other Printers That Use TN810 and TN810XL

Also on this platform: the HL-L9410CDN, HL-L9430CDN, HL-L9470CDN, MFC-L9610CDN and MFC-L9630CDN. All six machines share the TN810 and TN810XL; the TN815 tier is reserved for this model, the MFC-L9630CDN and the two Workhorse printers — keep that boundary in mind when cartridges move between offices.

To order against this machine's own shelf, start from our MFC-L9670CDN toner page.