Please make sure that your printer is listed below, if not, please contact us so that we can advise on the correct maintenance cartridge. Opened maintenance cartridges cannot be exchanged or refunded as they cannot be resold.Compatible printers:PIXMA G1430 PIXMA G1530PIXMA G2470PIXMA G2570PIXMA G3470PIXMA G3471PIXMA G3472PIXMA G3570PIXMA G3571PIXMA G3572PIXMA G4470PIXMA G4570Some printers may not have been listed. Please contact us if you are unsure of the maintenance cartridge to purchase for your printer.