This installer is a Print-Only Installer. It contains only the minimum software required for printing to your HP All-in-One device. It does not contain software for scanning, faxing, printing to fax, or copying. If you require any functionality beyond printing, you can download a full installer from the HP web site.
If you have already installed software for your HP All-in-One device, this installer will update the print drivers to the latest version, and the software for scanning, faxing, and copying will be left intact.