Our remanufactured alternative to the Brother TN3520 carries the very same page yield as the superb original version and is fully compatible with the Brother HL-L6400DWT (and all other printers mentioned on this page). Great care has been taken by our manufacturer to keep the remanufactured Brother TN3520 as close to the original as possible and many of the same parts have been reused.Remanufactured and compatible toners are what we specialise in and each an every time we add a line, like the remanufactured Brother TN3520, we ensure the quality is up to scratch. That is why we offer a `100% Satisfaction Guarantee` on each of our remanufactured Brother TN3520 mono laser toner cartridges.