Black/Magenta new cartridges on HP Officejet Pro 6960 won't print. Printhead error msg

[Echo99]

After replacing all 4 ink cartridges with new HP InstantInk cartridges, suddenly black and magenta won't print.  Cyan and yellow are fine.  I ran the clean printheads function at least 5 times, but there is no change.  At the end of one cleaning cycle it started giving this error message: "problem with printhead 0xc19a0013."  I had had a problem with my InstantInk account because I needed to update the payment card with new exp date/CVV and had been getting messages on printer saying "You will no longer be able to print soon."  I updated the card after cartridges wouldn't print, thinking maybe they were blocking the cartridges until payment for this month processed.  Payment went through but still no black or magenta. Vents are not blocked.  I took cartridges out and shook lightly.  They are full of ink and even splashed some on the floor.  I had received an email saying HP would no longer support this model with updates, encouraging me to go buy a new printer.  Could this just be a way  of forcing me to buy a new printer when my old one was working fine?

[TEJ1602]

@Echo99, Welcome to HP Support Community!

I see that you are experiencing print quality issues on the printer, this could be an issue with the printer or the ink cartridges.

I'd recommend you follow the steps from the document Black or Color Ink Not Printing, Other Print Quality Issues.

If the issue persists, contact the HP Instant Ink team.  I have sent you a private message, with details.

In order to access your private messages, click the private message icon on the upper right corner of your HP Forums profile, next to your profile Name or simply click on this link.

Keep me posted.

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