SOL Corp (Non-OEM) REFILL KIT for use In Lexmark C540 C544 C546 Toner Cartridges Combo - 4pk (BCMY) for C540H2KG, C540H2CG, C540H2MG, C540H2YG (Also replace C540H1KG, C540H1CG, C540H1MG, C540H1YG)