I can only get the Magenta and Black to work after initially testing and everything working. Only Genuine HP ink will work. I am including the ink cartridges which are well worth this buy price.The HP OfficeJet Pro 6978 Wireless All In One Inkjet Printer is a versatile printer that offers high-quality color printing, scanning, copying, and faxing capabilities. With a maximum resolution of 3600 x 1200 DPI and a black print speed of 18 ppm, this printer delivers professional-quality prints quickly. It features wireless connectivity, USB 2.0, and 10/100Base-TX connectivity options for easy connectivity. This printer, part of the HP OfficeJet Pro product line, is designed for small office or home use and is capable of handling various paper sizes including A5, A4, and A6.