@yt5754, Welcome to the HP Support Community!
An E3 error indicates a printer carriage jam.
Kindly perform the steps mentioned under "The Number of Copies icon alternates between 'E' and '3,' and the Error icon, Paper Error icon, Resume light, and Ink Alert light are blinking" on this document - Blinking Lights
Try reinstalling the ink cartridges.
Hope this helps! Keep me posted.
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KUMAR0307
I am an HP Employee