GREENBOX Remanufactured Ink Cartridge Replacement for HP 972X 972 X for HP Pagewide Pro 477dw 377dw 477dn 577dw 377dn 577z 452dn 452dw 552dw P55250dw P57750dw Printer (Black Cyan Magenta Yellow)

I print mostly black and the color differences are not large. I bought the set as a shot in the dark. I have purchased replacement cartridges that did not work. So I just wanted to see if they worked. They do. I will buy HP cartridges for color but greenbox is the choice for black.

This item does not function in a HP PageWide Pro 577 MFP.