Toner cartridges for Lexmark X543 - compatible and original OEM
Lexmark C540 C543 C544 C546 X543 544 546 548 Toner - Sun Data Supply
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
Compatible Color Toner Cartridge for Lexmark C540 C543 C544 C546 X543 X544 X546 X548 - AliExpress
Lexmark™ Waste Toner Bottle for Lexmark C540, C543, C544