@seickholt,
Welcome to HP Forums, this is a great place to get support, find answers and tips.
Thank you for posting your query, I'll be more than glad to help you.
I understand that you get an error message "missing or failed printhead" on your HP Officejet Pro 8610 e-All-in-One Printer.
This issue could occur if the printhead is defective.
Let's go through a few steps to troubleshoot this issue.
And here's the step by step guide for you in the link: http://hp.care/2oJSGcl
If the issue persists, then you may need to contact HP phone support for further assistance at the link: www.hp.com/contacthp
You have a good day ahead.
Rainbow23
I am an HP Employee
If you found this post helpful, you can let others know and also show your appreciation by clicking the “Accept as Solution” button, “Thumbs up" button!