Brother MFC-L6700DW Toner Cartridges
Your Brother MFC-L6700DW uses the TN-3420, TN-3440, TN-3470 toner cartridge series and DR-3425 drum unit. Supplying Australian workplaces with heavy-duty consumables since May 2016, we ensure uninterrupted document output for busy commercial operations. Moving from standard TN-3420 cartridges to super high-yield TN-3470 options drastically reduces replacement downtime during large print runs. Our 4.8 Google rating proves it: we consistently supply premium cartridges backed by rock-solid reliability.
Real-world document capacity and laser standards
Standard TN-3420 cartridges yield 3,000 pages, high-yield TN-3440 delivers 8,000 pages, and super high-yield TN-3470 reaches 12,000 pages based on ISO/IEC 19752 testing standards. High text coverage, complex tables, or dark graphics will decrease total printed output per cartridge.
| Cartridge Number | Type | Colour | Page Yield | Cost Per Page |
|---|---|---|---|---|
| TN-3420 | Standard | Black | 3,000 | $0.058 |
| TN-3440 | High Yield | Black | 8,000 | $0.037 |
| TN-3470 | Extra High Yield | Black | 12,000 | $0.027 |
Cost Per Page = Total Cartridge Price ÷ Page Yield (at 5% coverage). Prices based on Genuine cartridges.
Managing the separate drum unit assembly
Monochrome laser printing relies on a standalone DR-3425 drum unit rated for roughly 50,000 pages, allowing you to swap multiple toner cartridges before replacing the drum.
Experience Tip: If faint vertical streaks appear on printed sheets, clear excess toner dust by sliding the green corona wire tab along the top of the drum unit several times.
Reducing cost-per-page with compatible toner
Using compatible TN-3440 toner cartridges allows high-volume offices to maintain continuous document output while lowering ongoing supply expenses. Under Australian Consumer Law, using compatible cartridges does not void your printer warranty. Learn more in our helpful guide on genuine vs compatible cartridges.
Dispatch networks and smart purchasing options
Offices producing heavy daily paperwork achieve maximum efficiency by choosing super high-yield TN-3470 cartridges or multi-packs. Compatible cartridges carry a money back guarantee for reliable daily performance. Free delivery applies on all orders over $99. Orders dispatch directly from local warehouses in Sydney, Melbourne, Brisbane, Perth, and Adelaide. Browse our full range of Brother toner cartridges or review our straightforward returns policy before placing an order.
Pro Tip
Offices running heavy print workloads should default to super high-yield TN-3470 cartridges, which offer four times the page output of standard TN-3420 cartridges to minimise maintenance interruptions.
Frequently Asked Questions
Can I fit a super high-yield TN-3470 cartridge into a drum that held a standard TN-3420?
Yes, standard TN-3420, high-yield TN-3440, and super high-yield TN-3470 toner cartridges share identical physical dimensions and insert into the same DR-3425 drum housing.
Why does my printer prompt to replace the drum after installing a new toner cartridge?
The TN series toner cartridge holds the black toner powder, whereas the DR-3425 drum unit transfers the image onto paper; they are distinct physical components with independent lifespans.
How do I clear a "Drum End Soon" warning after fitting a new DR-3425 drum?
With the printer turned on and the front door open, press and hold the OK button for two seconds until "Drum Unit" appears, then press OK and confirm the reset.
