Lexmark has in introduced a great way to protect the Lexmark brand against counterfeit and grey market activity. Lexmark is on a mission to take action against Lexmark OEM counterfeit products globally as well as trademark infringing remanufactured cartridges. Inkandtonerlocker.com only sells Lexmark OEM genuine products and Lexmark Compliant remanufactured products. Are you uncertain if you have received a Lexmark OEM genuine toner when you have expected to receive one? Below is a link that will take you to a Lexmark’s website where you can verify the serial # on your toner cartridge to find out if it is fact a Lexmark genuine OEM Toner.