Lexmark 80C1HK0 Black High Yield Return Program Toner For use in cx410de, cx410e, cx410dte, cx510de, cx510dhe and cx510dthe Return program. Average Continuous Black Declared Cartridge Yield in one-sided (simplex) mode-Up to 4,000 standard pages in accordance with ISO/IEC 19798 Also for use in cx410dte, cx510de and more