SHARP ZT50DR Copier drum cartridge for sharp z-50, 52, 52ii, 55, 57, 57ii, 70, 72 & others Drum Cartridge For copier models Z-50, 52, 52II, 55, 57, 57II, 70, 72, 75, 76, 85, 85II, 85III, 87, 88. Black Cartridge