Temporarily Not Available! Lexmark T520 12A6835 Toner Cartridge, (Remanufactured) this is our top of the line premium OEM Grade T520 sourced in Canada and is produced in a ISO 9002 controlled production facility using the industries finest quality toner and highest grade OEM equivalent T520 12A6835 laser toner components. Resulting in superb quality high contrast pin-sharp prints and excellent page yields. If you are looking for the highest greade replacement to the original Lexmark toner cartridges then look no further. Not all remanufactured and compatible toner cartridges are created equal, most others are just low cost Drill & Fills.