EPS Black Toner Cartridges compatible with Brother TN750 EPS toner come with LIFETIME WARRANTY. Please contact EPS directly for any questions. Customer support is 24/7. Company info is on the box. Yield : 8000 pages Built with ISO9001 and ISO14001 Factory Standards Compatible with BROTHER HL 5440D, HL 5450DN HL 5470DW, HL 5470DWT, HL 6180DW, HL 6180DWT, DCP 8110DN, DCP 8150DN, DCP 8155DN, MFC 8510DN, MFC 8710DW, MFC 8810DW, MFC 8910DW, MFC 8950DW, MFC 8950DWT