Lot of 7 Lexmark C540 C540H2CG High Yield Cyan Toner Genuine NEW SEALED *Ma19 734646083508 | eBay
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
Yellow Toner Cartridge for Lexmark C540/C544/X543/X544 - 2000 page yield, Replacement for OEM cartridge