Samsung ML-2550 Toner for ML-2550, ML-2551 & ML-2552 Printers Buy New Compatible Samsung ML-2550 Toner Cartridges from Canada's most trusted, family run Canadian toner stores, the CartridgeStore.ca. This is a Premium Compatible Black Toner Cartridge. (Part No. ML-2550) Printers Compatible with this: Samsung - ML-2550 Black Toner Cartridge Samsung Colour ML-2550, ML-2551, ML-2552 Series Printers Detailed Info & Specification: