Brother HL-L5100DN Toner Cartridges
Your Brother HL-L5100DN uses the TN-3420, TN-3440, TN-3470 toner cartridge series and the DR-3425 drum unit. Supplying Australian workplaces with daily office printing supplies since May 2016, we keep your business running smoothly without missing a deadline. High-volume document printing benefits enormously when moving from standard TN-3420 cartridges to high-yield TN-3440 alternatives to lower cost per output. Our 4.8 Google rating proves it: we consistently supply premium cartridges backed by rock-solid reliability.
Expected page output and replacement cycles
Standard TN-3420 black toner delivers approximately 3,000 pages, while high-yield TN-3440 cartridges extend output up to 8,000 pages according to ISO/IEC 19752 testing protocols. Heavy text coverage or continuous graphic printing reduces these numbers in daily workplace operation.
| 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 |
Cost Per Page = Total Cartridge Price ÷ Page Yield (at 5% coverage). Prices based on Genuine cartridges.
Choosing between genuine and compatible options
Opting for compatible TN-3440 cartridges cuts document production overhead dramatically for high-volume monochrome output. Under Australian Consumer Law, using compatible cartridges does not void your printer warranty. Read through our detailed genuine vs compatible cartridges breakdown for complete technical peace of mind.
Separate drum unit maintenance
Monochrome laser systems rely on a separate DR-3425 drum unit rated for up to 50,000 pages, which outlasts several individual toner replacements.
Experience Tip: If your printed pages show faint vertical lines or background grey shading despite a fresh toner, replace the drum unit and slide the green corona wire tab back and forth to clear loose dust.
Best way to stock these cartridges
Offices running continuous document workflows save significantly by purchasing high-yield TN-3440 cartridges or multi-packs. Compatible options include a money back guarantee to ensure hassle-free operation. Free delivery applies on all orders over $99. All orders ship directly from dispatch centres located across Brisbane, Sydney, Melbourne, Adelaide, and Perth. Browse our complete range of Brother toner cartridges or review our returns policy before placing an order.
Pro Tip
Keep a spare TN-3440 toner on hand because high-speed laser printers often give very short warning between the initial low-toner alert and stopping print jobs entirely to prevent faded output.
Frequently Asked Questions
Can I install a high-yield TN-3440 toner if my printer originally came with a TN-3420?
Yes, standard TN-3420 and high-yield TN-3440 cartridges use the exact same outer casing dimensions, allowing high-yield toners to lock into the DR-3425 drum tray without extra configuration.
How do I clear the drum replacement message after installing a new DR-3425 drum unit?
You must manually reset the drum counter through the printer menu; open the front cover, press and hold the OK button until the screen displays "Drum Unit", press OK, and confirm the reset.
Why does my printer ask for a drum replacement when the toner still has powder left?
Brother laser printers keep toner supply and drum life completely separate; the DR-3425 drum wears down mechanically over its 50,000-page lifespan regardless of how much powder remains in the TN-3420 or TN-3440 cartridge.
