About our product:Bright clean chip:Complex technology brings complete compatibility.Ink of great quality:The diameter of the particle is within 20 nanometers, which makes a clear printing, great liquidity and prevents any printing head clogged.Refined structure:The ink are stored in a constant pressure structure, making stable outflow of the ink, which means smooth and consistent printing.Quality control:100% post printing test for each cartridge.Note:100% Compatible With Original printer,this is NON-OEM.When install the new cartridges into printer,the computer would promote "Non-Original", please click "Yes" ,then the printer can go on to print.Please make cartridges upside down and remove the protective clip before you install the ink cartridges.Any questions, just feel free to contact us.