Genuine OEM Lexmark X520 Toners

The X520's black-toner choices include cartridges with different capacities and one designed specifically for label printing. Lexmark's 12A6839 is that label-use option, so it serves a different purpose from choosing a larger cartridge for everyday paper documents.

Toner Buzz carries genuine Lexmark 12A6830 black toner for the X520. High-yield 12A6735 and 12A6835 toner offer more printing between changes, alongside the label-use option. Return Program cartridges also have single-use and return-to-Lexmark terms to consider.