Remove old hp user

[SyStinn]

I received a printer but I need to hook it up to my hp account instead of theirs but they no longer have access to the email of the old account

[BeemerBiker]

The EWS tool may work if the previous owner did not have an ink or HP+ subscription.
This explains how to Use the HP printer Embedded Web Server (EWS)

1. Find the printer's IP address.
2. Enter that IP address in a browser, for example: http://192.168.x.x
3. Log into the printer's EWS using the PIN printed on the printer if it asks for one.
4. Go to Settings → Restore Defaults.
5. Look for Secure Erase / Start Secure Erase.
6. Let the printer completely reset and restart.
7. Remove the printer from the HP app.
8. Add it again and connect it to Wi-Fi.
9. Try registering it to your HP account again.

If the above does not work there may be an ink subscription that is causing the problem. You will have to contact the instant ink team:

Try here at the Get HP Instant Ink Support Website
Contact the team at HP Instant Ink Support during business days and hours available in your region.
General help on instant ink management

Let me know what you find out.