Success is not left to chance. Did you know that an inkjet A1/D-size photo contains up to 1.1 billion drops of ink? There are many chances for something to go wrong when printing. Watch HP's Chief Inkologist explain how the Original HP ink system is designed to perform, taking 3 to 5 years to develop and up to 1,000 prototypes so that your image is not left to chance. Always choose Original HP ink.