greencycle Compatible Toner Cartridge Replacement for Samsung SCX-4521D3 SCX4521 Use for SCX-4521 SCX-4521F SCX-4521FG SCX-4521FR SCX-4321 SCX-4321F Printer (Black, 1-Pack) : Office Products - Amazon.com
Samsung SCX-4521F Toner Cartridges
Samsung ML-2955DW Driver for Mac
Amazon.com: MM MUCH & MORE Compatible Toner Cartridge Replacement for Samsung 2010D3 ML-2010D3 2010 High Yield to use for ML-2010 ML-2010R ML-2510 ML-2570 ML-1610 ML-2571N SCX-4521F 4321 Printers (1-Pack) : Office Products