PrinterDash Compatible Replacement for Brother DCP-L3510/L3550/HL-L3210/L3270/L3290/MFC-L3710/L3730/L3750/L3770CDW Black Drum Unit (2/PK-18000 Page Yield) (DR-223K_2PK) - Walmart.com
Amazon.com: Brother TN-243BK Original Toner Cartridge DCP-L3510CDW, DCP- L3550CDW, HL-L3210CW, HL-L3230CDW, HL-L3270CDW, MFC-L3710CW, MFC-L3730CDN, MFC-L3750CDW and MFC-L3770CDW, Black, Standard : Office Products