compatible for Ecotank ET-2700 ET-2750 ET2760 ET-4760 ET-3760 ET-2850 ET-3710 ET-3850 ET-3750 ET-4850 ET-3830 ET4750 ET3700 ET-15000 ET-2800 ET-2803 ST-2000 ST-3000 ST-4000 Printer