Why is my HP printer offline and how to fix it? from johnharrison's blog

If your Hp printer offline issue occur with the computer or network. To fix this:

1. Ensure the printer is powered on and properly connected to the same Wi-Fi network as your computer.

2. Restart the printer and your computer.

3. Check the printer queue and clear any pending print jobs that might be causing conflicts.

4. Update the printer drivers to the latest version from the HP website.

5. Temporarily disable any firewall or antivirus software that might be blocking printer communication.