HP5520: Scan to Computer - do I need to download software?

I have set up a new HP5520 eprinter. It is networked and working fine. It is only connected using my Wifi Network. I am able to scan using the MacMini to initiate the process, but I want to be able to Scan to Computer by simply pushing the Scan button on the printer. The printer came with a CD, but my MacMini does not have a CD drive. I am a PC person so I am not certain if I need to install software to do this task. When I press the Scan button on the printer, it says the scan to computer function must be installed using the included software.