The E3 error code on an HP printer usually indicates a paper jam or a problem with the paper feed mechanism. To resolve this issue, you can try the following steps:
Check for paper jams: Open the printer's paper tray and any access doors to inspect the paper path. Look for any jammed paper or debris that may be causing the error. Carefully remove any obstructions you find. Be sure to check both the input and output trays, as well as any areas where the paper might get stuck along the paper path.
Clear the paper feed mechanism: Sometimes, small pieces of paper or debris can get stuck in the paper feed rollers or other parts of the mechanism, leading to the E3 error. Use a lint-free cloth lightly moistened with water to clean the rollers and other accessible parts of the paper feed mechanism. Make sure to follow the printer's manual or manufacturer's instructions for cleaning.
Regards,
John