Review on 🖨️ High-Quality Aztech Compatible Toner Cartridge Replacement - Brother TN850 TN820 - 2-Pack - Black Ink - for HL-L6200DW, MFC-L5850DW, MFC-L5900DW, MFC-L5700DW, HL-L5200DW, MFC-L5800DW Printer by Cory Owens

I'm just finishing my second in two years (so I'm guessing I use about one a year) and they're great for everyday use. use. We have an ecommerce home based business and print invoices and shipping labels on a daily basis. We also print for general use and they are suitable for work. But they are definitely not Brother OEM cartridges and they also have their problems. Towards the end of their lifespan (about 90% usage) they definitely get lighter (like most cartridges) but also dirtier. One of the reviewers posted a photo of an escrow document that was unreadable and we definitely came across it, but only towards the end of its lifespan. As soon as we install a new cartridge, this problem disappears immediately. We've never had a problem with a leaking cartridge. As an aside we also have a property rental company that uses the same printer and depending on where in the life cycle these cartridges are they cannot always be relied on to print at a high quality. - High-quality legal documents such as contracts or leases. That's why we bought ONE genuine Brother OEM toner cartridge when we bought our printer, because you can count on them getting perfect prints every time. They are definitely more expensive but we only use them as a backup when they are picky and we need an impeccable, professional and high quality document.