I have both the color and black cartridges installed and my printer does not recognize the black cartridge as an installed cartridge. I looked at all the troubleshooting tips on the HP website but nothing helped. When I put in a black cartridge from another HP printer, the printer worked fine. When I replaced it with a black cartridge I bought from Revain the problem persisted. No matter what I tried, the black cartridge bought from this seller didn't work. Do yourself a favor, DO NOT BUY THIS PRODUCT. waste of money. Sorry I even had to give it 1 star because it deserved "0".
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