Office Jet 6962 will not print black ink

[ProdbyTiG]

After the original black cartridge that came with the printer started to get low, I replaced it with a 902 HP cartridge. It no longer prints even a trace of black ink. It still prints color fine. I tried putting the old cartridge back in and still only blank white pages come out when printing black. I believe I see small splatters of black ink on the inside of the printer.

I have tried hard reset, I have tried cleaning the print head, I have updated the printer to the newest software. 

[Betty0610]

@ProdbyTiG

Welcome to the HP Support Community.

Are you able to copy in black?

If you've performed all the steps from here: https://support.hp.com/us-en/product/hp-officejet-6960-all-in-one-printer-series/9514854/model/95147..., I recommend you to contact the HP Support Team regarding this as this could be a hardware issue.

Link: www.hp.com/contacthp/

Note:  Select the country accordingly to get the contact details for support.

Let me know if this helps.

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Thanks!

Have a great day!