Try getting the driver directly & installing it...
If getting the driver fails be sure to restart your Mac and try again.
If the same persists go to Librrary\Printers and Remove the HP folder.
Enter PPD\Resources\Contents search for C7200 and remove the file.. then try adding the printer again.
If there is still no change reset the printing system and try again:
If still no luck download and install this package:
Then it should be added with no issues.