Printhead Cleaner, Original Print Head Clog Buster / 4 oz. bottle. 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. Works on dyes, pigments, sublimation, food grade inks, Claria, Ultrachrome, K3 Apply to the docking station, wait 24 hours and see the results. Comes complete with detailed instructions for use. Restore plugged nozzles and illuminate banding. We have received some disingenuous comments in our feedback because our instructions do not cover their specific printer model. Please understand there are well over 1000 model printers with Epson, HP, Canon, Lexmark, Kodak, Dell, Brother, etc. and it is simply not possible to create instructions for every model printer. To do so would require Clog Buster to be shipped with a 500 page instruction manual. Instructions cover basic principals in how to use Clog Buster.