Brother MFC-L9670CDN Toner Cartridges
Your Brother MFC-L9670CDN uses the TN-851 and TN-851XL toner cartridges along with DR851CL drum units and BU-800CL transfer belt units. Ink Depot has been supplying reliable consumables for this enterprise colour laser printer since Jan 2024. Upgrading from standard TN-851 colour toners to TN-851XL high-yield options substantially reduces cartridge swap-outs during massive print runs. Our 4.8 Google Star rating shows that our customers consistently receive high-quality cartridges backed by reliable performance.
Expected Page Output and Replacement Cycles
Page yields for the TN-851 series are calculated under ISO/IEC 19798 standards for colour laser printing. High-volume offices running high page coverage will find high-yield TN-851XL cartridges maintain stable output capacity and lower replacement frequencies across departmental printing.
| Cartridge Number | Type | Colour | Page Yield | Cost Per Page |
|---|---|---|---|---|
| TN-851BK | Standard | Black | 9,000 | $0.029 |
| TN-851C | Standard | Cyan | 6,500 | $0.065 |
| TN-851M | Standard | Magenta | 6,500 | $0.065 |
| TN-851Y | Standard | Yellow | 6,500 | $0.065 |
| TN-851XLBK | High Yield | Black | 12,000 | $0.024 |
| TN-851XLC | High Yield | Cyan | 9,000 | $0.054 |
| TN-851XLM | High Yield | Magenta | 9,000 | $0.054 |
| TN-851XLY | High Yield | Yellow | 9,000 | $0.054 |
Cost Per Page = Total Cartridge Price ÷ Page Yield (at 5% coverage). Prices based on Genuine cartridges.
Choosing Between Genuine and Compatible Options
Choosing compatible TN-851XL toner cartridges delivers substantial savings for busy workgroups without sacrificing print output. Under Australian Consumer Law, using compatible cartridges does not void your printer warranty. Read our detailed genuine vs compatible cartridges guide to see how alternative toners fit your operational requirements.
Extended Lifespan Drum and Belt Components
The Brother DR851CL drum unit has a duty cycle of up to 100,000 pages, while the BU-800CL transfer belt unit handles up to 150,000 pages before needing replacement. Experience Tip: Because the DR851CL drum unit outlasts several sets of TN-851XL toner cartridges, tracking page counts prevents unexpected downtime during critical print runs.
Smart Purchasing Options and Fast Shipping
If you print high volumes of monochrome text, selecting TN-851XLBK black toner ensures lower operating costs per page. For offices managing high-volume colour output, bundle packs offer convenient replenishments. All compatible cartridges are backed by a money-back guarantee, supported by our flexible returns policy. Free delivery applies on all orders over $99, with fast dispatch from local fulfillment centres in Perth, Brisbane, Sydney, Melbourne, and Adelaide. Browse our complete range of Brother toner cartridges for ongoing workspace requirements.
Enterprise Pro Tip
Pro Tip: Store extra TN-851XL toner cartridges flat in their original sealed packaging in a cool, dry location to preserve toner powder consistency until installation.
Frequently Asked Questions
Can high-yield TN-851XL toner cartridges be used alongside standard TN-851 cartridges in the same printer?
Yes, you can mix standard TN-851 and high-yield TN-851XL cartridges across different colour slots without issue, allowing you to use high-yield black toner while running standard yield on lower-use colours.
How does a separate drum unit impact total printing costs on the MFC-L9670CDN?
Unlike single-piece cartridge systems, the separate DR851CL drum unit only needs replacement every 100,000 pages. This lowers ongoing replacement costs, as you only replace individual toner cartridges when empty.
Why does colour toner deplete even when printing predominantly in black?
Brother colour laser printers perform periodic automatic calibration cycles to maintain colour precision and image alignment, which consumes small amounts of cyan, magenta, and yellow toner over time.
