Brother TN-3480 / TN-3430 Toner Reset (HL-L5100, L6300)

If your Brother keeps showing "Replace Toner" after you've changed the cartridge, it's because the internal counter hasn't been reset to zero. The printer doesn't measure how much toner is left: it counts pages and, when it reaches the limit, it warns you even if the cartridge is full. You need to reset that counter, and here we explain how.

Why does my Brother keep asking for toner after I've changed it?

Brother laser printers in the HL-L5100/L6300 series don't read how much powder is left inside the cartridge. They carry a page counter linked to the toner. When that counter reaches its rated yield, the screen or LEDs warn you that it's time to change, whether you have toner or not. When you fit a new cartridge, that counter needs to be reset so the machine starts counting from zero again.

It's perfectly normal for a cartridge to reach "empty" according to the warning while there are still plenty of pages left inside. That's why the reset is the key, not the cartridge itself. If you want to understand the problem in depth, we have a dedicated guide on when the printer doesn't recognise compatible toner.

First things first: our toner already comes with a new chip (you almost never need to touch anything)

Our Compatible Brother TN3480 TN3484 Toner with an 8,000-page yield includes a new reset chip. On most HL-L5100DN, HL-L6300DW, DCP-L5500DN and MFC-L5700DN printers, the counter resets to zero on its own as soon as you install it. Fit the cartridge, close the cover and start printing: quite often you won't have to go into any menu at all.

At €14.98 for 8,000 pages, the cost per page works out at around €0.002 (less than a fraction of a cent). That cartridge covers the HL-L5100DN, HL-L5200DW, HL-L6250DN, HL-L6300DW and HL-L6400DW family, as well as the MFC-L5700DN, L5750DW, L6800DW and L6900DW, plus the DCP-L5500DN and L5650DN.

• Is your machine from the older HL-5340/5350 or MFC-8370/8380 range? Then use the Compatible Brother TN3230 TN3130 Toner with a 3,000-page yield (€12.98), which also comes with its chip.
• Both cartridges are compatible, not OEM, and meet the ISO 9001 standard.

How do I install the Brother toner step by step?

Installation is the same across the entire L5100/L6300 series. Take your time and don't force anything:

• Switch off the printer and open the front cover.
• Pull out the complete drum + toner assembly, drawing it towards you.
• Push down the locking lever (usually green) and separate the old toner from the drum.
• Take the new toner out of its packaging and gently shake it from side to side to distribute the powder.
• Slot the new toner into the drum until you hear a firm click.
• Reinsert the assembly into the printer and close the front cover.

If you'd like the step-by-step detail with photos so you don't damage the drum, take a look at our guide on how to install a toner cartridge step by step. In most cases, the warning clears on its own once you close the cover.

And if "Replace Toner" keeps appearing?

If the printer keeps insisting on "Replace Toner" after you've installed the cartridge, it's time to reset the counter by hand. Let's be honest: the exact sequence varies depending on your Brother model, so we'll give you the standard method for this family and you adapt it to your machine.

• Models with a touchscreen or keypad (many MFC-L5700/L6800/L6900): you go into the machine's information or maintenance menu, find the toner counter and reset it to zero from there.
• Models with a simple display or LEDs only (several HL-L5100/L6300): the reset is usually done with the front cover open, holding down the OK or Go button until the screen offers to reset and then confirming.

We won't give you a fixed button combination as though it were universal, because it changes between variants and we don't want you to reset another counter by mistake. If your particular model doesn't match these steps, write to us with the exact reference (for example HL-L5100DN or MFC-L6800DW) and we'll tell you the sequence. There's more context in our guide on resetting the "Replace Toner" counter on Brother and HP, and also a specific one on resetting the TN-2510 in continue mode in case it's useful as a reference for the Brother method.

When is the problem the drum and not the toner?

Be careful not to confuse the warnings. If the message mentions "drum" rather than "toner", the consumable to check is a different one: the drum is the photoconductor unit that lasts several cartridges. In the L5100/L6300 series, the drum corresponds to the DR-3400 reference and has its own counter, separate from the toner.

If your printouts come out with vertical streaks, repeating marks or a grey background despite having new toner, point the finger at the drum. You can see all the options in our collection of best-selling compatible toner and ink, or write to us to confirm the reference before you buy.

Quick summary

• The warning persists because the counter wasn't reset, not because the cartridge is faulty.
• Our compatible TN3480 comes with a new chip: in most cases it resets on its own.
• If it keeps insisting, reset the counter by hand according to your model, or ask us.
• If the message says "drum", the consumable is the DR-3400 unit, not the toner.

Frequently asked questions