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
Amazon.com: Lexmark 51B1000 Return Program Toner Cartridge 2-Pack for MS417, MS517, MS617, MX417, MX517, MX617 : Office Products