I'm really sorry those troubleshooting steps didn't work. I think you still could try a uninstallation from the root, which be an alternative as well, so you can try scanning again to see if anything changes. Just pasted from the official App support page, as it follows:
- In Windows, search for and open Programs and features
- Select your HP Printer
- Select Uninstall
- In Windows, search for and open Devices and printers
- In the Devices and Printers windows look for your HP printer. If you see it listed right-click on it and choose ‘Delete’ or ‘Remove Device’
- Open up the run command with the “Windows key + R” key combo.
- Type printui.exe /s and click Ok. (Note: there is a space in between “printui.exe” and “/s”)
- Click on the “Drivers” tab
- Look for HP Printer driver. If you see it Click on it and click Remove at the bottom
- Select Ok
- Select Apply and Ok on the Print Server Properties windows
- Close Devices and Printers
- Restart the computer & Printer and download the Full Feature Software from https://support.hp.com/us-en/drivers and follow the onscreen Instructions.
*Enter the Product Number and download the Full Feature Software (hp.care/2bygf7l)
After reinstalling the full software for your HP printer:
- Click Start and then click Programs.
- Click HP, and then select your product.
- Click HP Scan, select a scanning shortcut, and then adjust the settings if necessary.
- Click Scan.
I hope this can assist your further in resolving this issue.
Best regards,
Lui N.