Epson Stylus Photo R200, R220, R300, R320, R340, RX500, RX510, RX600, RX620 Cleaning Cartridges Seller "A Bowl of Cherries" is the exclusive seller to this product. All others are counterfeits. BUYER BEWARE! When you purchase the cheap knock off products from Dinsink and Ink727 you are getting ammonia and alcohol based products that will attack the aluminum parts in the print head. We have received complaints from Amazon customers that have purchased these counterfeits and their printer was damaged beyond repair. Epson Stylus Photo R200, R220, R300, R320, R340, RX500, RX510, RX600, RX620. Restore the printer so that you get vibrant images again. Cartridges are refillable and use Auto Reset Chips. Illuminate banding. 6 Cleaning Cartridges to eliminate banding and plugged nozzles. Restore the your printer after it has sat for long periods. Use these cartridge when transitioning from one ink to another. IE. dye to sublimation or dye to pigment.