Hi, i'm using windows 7 and i have a brother mfc-j430w which does printing and scanning. The printer was properly installed, I can print and scan documents before, but as of last night, i was about to scan a docu, a window popped up and says, no scanner detected. But I can print documents, so it means both are connected right? What must be the problem? It's getting into my nerves. Thank you guys.