Guides & Tips: Please remove the transparent cover and pull off plastic tape before installing these cartridges. (Don't touch the chip) When occur an error message ¡®Replace Cartridge¡¯ or 'Low ink' ? Please reinstall them and try, you can try up to 5 times. These are NON-genuine ink cartridges. Your printer may display an ink alert message such as ¡°Non-Original cartridges¡±. Simply press ¡°Yes¡±, ¡°Continue¡±, ¡°Accept¡± or ¡°OK¡± to dismiss the prompt.