Thank you for the information, Dave.
You've got some internal issues there, at a minimum it sounds like a fault in the line feed mechanism, and quite possibly a bad printhead as well.
There are several steps I could guide you through to take the printer apart, clean it, and reset it.
But, this is time consuming, messy, has a low chance of success, and will void what warranty you do have.
Since it is only a few months old, your best recourse here is really to contact the retailer and ask for an exchange/refund. If past the return policy with them, you can file a warranty claim with HP. If you are able to get a refund, which would be ideal, I can recommend a more reliable replacement model for you.
If you prefer to try the steps yourself, let me know.
Best regards, ***** ***** for the news,
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Thank you, ***** ***** a good day,
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