I bought HP Deskjet F4180 printer cum scanner from one of my friend and i am using it with my Windows Vista operating system. The problem is that when I push the Scan button, the power light flashes for 10 seconds, then stops. I won't scans the document. I tried it many times but no response.Do we need to install any certain program ? Please let me know how can i scan with HP F4180 printer ?