LxTek compatible toner catridge for Brother TN-850 is the perfect way to save money. This set of LxTek Compatible Brother TN-850 toner cartridges has been professionally manufactured. Each toner cartridge was methodically tested to ensure full working condition and a superior print quality. This is a truly cost effective alternative to OEM cartridges. We are certain that you will love our cartridges, and that is why all LxTek branded products come with a 1 year warranty.