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Can you please remove the power to the printer (so unplug it from the power socket).
Then wait 10 minutes, connect the power again to the printer, turn it on and tell me please if it is now operating correctly.
Let me know the results please
No, not if it gave an error.
Is it connecting via wireless or via a USB cable?
Can you please remove the power to the wifi router, the printer and power off the computer.
Then wait 10 minutes
Power on the wifi router, wait 10 minutes
Power on the printer then the computer and tell me if it now prints correctly please.