Amazon.com: Lexmark C540, C543, C544, C546, X543, X544, X546 Series High Yield Magenta Return Program Toner Cartridge (2,000 Yield), Part Number C540H1MG : Office Products
Remanufactured Lexmark C540/C544 (C540H1KG/CG/YG/MG) high capacity toner cartridge set for Lexmark C 540 N,C 540 etc printers. – Greenlight Cartridge Recycling