This genuine HP 15 black ink cartridge is compatible with HP printers and uses inkjet print technology. It is an edible ink refill kit that expired in February 2009. The cartridge is ideal for those who require black printing for various purposes, such as printing documents and images. The expiration date does not affect the quality of the ink or the cartridge itself, making it a cost-effective option for those on a budget. Use this cartridge to keep your printer running smoothly and efficiently.