I see that you are having some issues with Scan to Email on your Officejet 6830 e-All-in-One Printer. I can help you with that.
To start, make sure the printer is plugged directly into a wall outlet and not a surge protector. Once done:
Turn the printer off.
While the printer is powered off, remove the power cable from the back of the router for one minute.
When the lights return on the router, turn the printer on.
Please let me know if this resolves your issues. If it does not, please let me know the error message you see on the printer. If it resolves your issue, please click on Accept Solution. If you appreciate my help, please click on the thumbs up icon. Both icons are below this post.
~DocCottle I work on behalf of HP
Please click “Accept as Solution ” below the post that solves your issue to help others find the solution.
Please click the Thumbs up icon below to say “Thanks” for helping!