I am 100% satisfied with this 'clone' to replace so-called 'genuine' Brother toner cartridges. It's sold for a tiny fraction of the price Brother charges for its cartridge. There's just no reason to buy the original if you don't want to spend the extra money. Brother's price is higher than the cost of replacing the entire printer! do yourself a favor Save your printer --- Brother printers (to me at least) seem to last forever --- and buy a clone cartridge.