Thank you for trying,
you can repeat the steps above to be safe, but beyond that, it would confirm a hardware fault, meaning a defective printhead.
The head is a "wear item" that fails with age/use. As this is a 2010 model printer, it is well past its 3 year service life, so this type of failure is not surprising.
While it can be fixed, it is not worthwhile to do so. You would have to, at a minimum, replace the printhead, which costs about 1505; if the logic board is bad you’re looking at $200-250. For $80-100 you can replace the entire machine with a brand new model, with current technology and a fresh warranty, which makes more sense than buying the new part for an older printer.
Depending how you'd like to proceed, I can advise on finding a local repair shop, or recommending replacement options for you. Just let me know.
Best regards, ***** ***** for the news,