WE SELL & SERVICE RISO DUPLICATORS. Shown Hereis 5Tubes of Generic BLACK inkfor the Riso EZ220, EZ221, EZ390, EZ391, EZ590, EZ591, MZ790, MZ890, RZ220, RZ390, RZ590, SF5130, SF5450, series & some other RisoDigital Duplicators. I will ship in the continental U.S.(lower 48 states), Alaska, Hawaii, & Puerto Rico for FREE NO CHARGE FORSHIPPING or you can pick up on Long Island as soon funds have cleared. Payment can be made by Paypal, Mastercard, Visa, orAMEX.