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×InformationNeed Windows 11 help?Check documents on compatibility, FAQs, upgrade information and available fixes.
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- HP Community
- Printers
- Printer Ink Cartridges & Print Quality
- Smart Tank 651 won't print black

Create an account on the HP Community to personalize your profile and ask a question
03-30-2024 06:44 PM
My printer won't print black, but colors are fine. I've filled the ink tank and ran the "clean cartridges", "align cartridges", and "clean smudges" diagnostic tools. Looking at the support site and other community posts, it looks like the problem lies with the printhead.
So, I thought I'd take a look at the printhead, see if maybe there's dried ink or some other glaring issue – last diagnostic step before ordering a new printhead. I followed the instructions on this page https://support.hp.com/us-en/document/c06263927, but the printhead doesn't move to the center, and according to the page, this means the printhead doesn't need to be replaced? So.. I'm at a loss.
Can someone advise please? Thanks so much.
[Side note for HP: you may want to update the OS dropdown on this form; the most recent Mac OS is 12/Monterey, from 2021]