The HP 10 black ink cartridge provides cost-effective, professional quality for a variety of printing needs - from quick email printouts to polished documents. The 69-ml cartridge uses a patented formula of pigment-based ink to achieve the sharp, black text expected of professional documents. HP ink cartridges, printheads and printers are designed together to work together. Smart technology1 in the HP printing system makes automatic and continuous adjustments to optimize print quality and enhances reliability and cost effectiveness. Smart features monitor ink levels, simplify installation and make ordering new supplies easy and efficient. The modular ink delivery system allows for efficient, economical replacement of individual ink cartridges. This cost-effective printing system provides reliable, efficient operation that minimizes user intervention and maintenance - saving time and improving productivity. The result is clear to see - sharp text every time you print.