Thermal transfer cartridge is designed for use in Brother intelliFax-1170, intelliFax-1270, intelliFax-1270e, intelliFax-1570MC, intelliFax-1575MC, MFC-1770, MFC-1780, MFC-1870MC and MFC-1970MC. It is part of a complete intelligent printing system to provide superior quality. Use only Brother Genuine replacement cartridges for superior results. Cartridge yields approximately 450 pages.