Epson Stylus Photo R260, R280, R380, RX580, RX680, RX595, RX680 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. If you have purchased this product from Amazon seller "Dinsink" and it was labeled 'Print Head Clog Buster', Please contact us. Use these cartridge when transitioning from one ink to another. IE. dye to sublimation or dye to pigment. The Inkmizer cleaning cartridge also uses the Auto Reset Chip so you can refill the cartridge with more cleaning fluid or flush with distilled water and fill with ink. Restore the print head nozzles after they have sat for long periods. Comes complete with instructions how to restore the print nozzles.