@Spash147, Welcome to HP Support Community!
I appreciate your efforts in trying to resolve the issue. If you have already tried all the steps replacing ink would be the next recommendation.
If you have already performed the steps from the document Black or Color Ink Not Printing, Other Print Quality Issues and the issue persists, it could be a hardware failure.
Please reach out to HP Support in your region regarding the service options for your printer.
Hope this helps!
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TEJ1602
I am an HP Employee