502 ink:

ET : EcoTank ET-2700, EcoTank ET-2750, EcoTank ET-2751, EcoTank ET-2760, EcoTank ET-2850, EcoTank ET-3700, EcoTank ET-3710, EcoTank ET-3750, EcoTank ET-3760, EcoTank ET-3830, EcoTank ET-3850, EcoTank ET-4750, EcoTank ET-4760, EcoTank ET-4850, EcoTank ET-15000
Expression : ET-2700 EcoTank, ET-2750 EcoTank, ET-3700 EcoTank
WorkForce: ET-3750 EcoTank, ET-4750 EcoTank, ET-4752 EcoTank, ST-2000, ST-3000, ST-4000, ST-C2100, ST-C4100