My HP printer does not print, and a printhead error message displays on the computer or printer control panel.
venmartin Changed status to publish December 26, 2019
The printhead may not have been properly aligned on your HP printer. While it is unplugged, you can remove the printhead and correctly insert it back. Now, you can check whether the device is able to print.
Regarding the process or more ways to troubleshoot the issue, you may see: https://www.errorsdoc.com/hp/fix-hp-missing-or-failed-printhead-error/