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HP Office Jet Pro 6978 alignment error.
Welcome to the HP Support Community.
Let's try to reset the Printer here:
Turn the printer on, if it is not already on.
Also, try connecting the Printer to a different wall outlet directly.
Perform the steps from here too: https://support.hp.com/us-en/product/hp-officejet-pro-6970-all-in-one-printer-series/8289585/model/1...
Let me know if this helps.
If the information I've provided was helpful, give us some reinforcement by clicking the "Accept as solution" button, that'll help us and others see that we've got the answers!
Have a great day!
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