The genuine HP 70A black toner uses HP’s Smart Printing technology, which ensures quality printing time and time again. Each genuine HP 70A toner cartridge contains enough high quality genuine HP Q7570A laser toner to produce up to 15,000 pages of crisp, sharp, and lasting prints. The genuine HP 70A toner cartridge also has a unique design that promotes full toner depletion to extend cartridge life and ensure consistent print quality down to the last page. The genuine HP Q7570A cartridge unit also promises to be easy to install and use, due to it being designed to work in your HP printer.