【Wide Compatibility】20N1XK0 Black Toner Cartridge Compatible for Lexmark CS431 CX431 20N1XK0 toner cartridges, suitable for CS331dw, CS431dw, CX331adwe, and CX431adw printers. 【Page Yield】20N1X 20N1XK0 CS431 Black Toner Cartridge Prints up to 6,000 pages at 5% coverage. 【Package Contents】1 Pack 20n1XK0 Black Toner Cartridge. 【Crisp & Consistent Printing】 Produces sharp black text and professional-quality results from the first page to the last without smudging, streaks, or fading. 【Important Note】20N1XK0 Black Toner Cartridge check the printer model before purchase,and gently shake it horizontally 2–3 times before use. 20N1XK0 CS431 Toner Cartridge Black with Chip Compatible for Lexmark CS431 CX431 CS431dw CX431adw Printers(1-Pack, 6,000 Pages)