If the printer validation failed HP then you can try to validate it by uninstalling and reinstalling the printer driver from the root. You are in luck because we are here to help you with some easy steps to do it. They are as follows:
Uninstall the drivers
• Open the programs then go to features
• Select the HP Printer and then click on ‘Uninstall’
• Once you are done, go to ‘Devices and Printers’ from the control panel and delete/remove the HP Printer
• In order to eliminate root level drivers, open the run box and then enter ‘printui.exe /s’
• You should also delete print server properties
• Restart your device once the uninstallation has been done
Install the drivers again
• Visit the official website of HP and then select your country
• Enter the product number and then select the apt operating system if it is not automatically detected
• You will see a setup wizard and then follow the instructions displayed on the screen
If your printer validation failed HP then you will be able to validate it again by using the steps mentioned above. Feel free to get in touch with us if you get stuck somewhere.