If the error persists or if you are unable to locate any paper jams there are following ways to resolve hp Printer error code e3
Turn off the printer: Press the power button on your HP printer to turn it off. Unplug the power cord from the outlet as well.

Open the printer cover: Locate the printer cover or access panel on your HP printer. It is usually in the front or top of the printer. Open it to gain access to the internal components.

Check for paper jams: Carefully inspect the paper path and paper feeding area for any paper jams or obstructions. Gently remove any stuck or crumpled paper.

Clear paper feed mechanism: Look for any debris or foreign objects in the paper feed mechanism, such as small pieces of torn paper. Use a soft, lint-free cloth or compressed air to clean the area.

Reset the printer: Close the printer cover or access panel. Plug the power cord back into the outlet and turn on the printer by pressing the power button.

Retry printing: Once the printer restarts, try printing a test page or any document to check if the error is resolved. Make sure to use the correct paper size and type for your print job.

If the error persists or if you are unable to locate any paper jams, it is recommended to consult the printer's user manual or visit the official HP support website for further troubleshooting steps or to contact HP customer support for assistance.

https://sites.google.com/view/hp-error-3/