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Unable to communicate with the printer due to printer stuck with flashing "E" (now error code given), even after power off/on. How to make a hardware reset to get back to factory settings?
Welcome to HP Forums, this is a great place to get support, find answers and tips.
Thank you for posting your query, I'll be more than glad to help you.
I understand that you are unable to print from your HP DeskJet 3720 All-in-One Printer and the letter E keeps flashing.
This issue could occur if the printer is in error state.
Let's go through a few steps to troubleshoot this issue.
And here's the step by step guide for you in the link: Blinking Lights
Let me know how this works.
You have a good day ahead.
Rainbow23 I am an HP Employee If you found this post helpful, you can let others know and also show your appreciation by clicking the “Accept as Solution” button, “Thumbs up" button!
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