MediaCapture

Hi,
I am working on a web application and want to access Document
Scanner(Fujitsu 7160) through MediaCapture. I have searched over the net to
get an example to how to do so but unable.I have found video and audio
options and in the video how can I connect scanner, how can i perform
single/mutiple(array of images) scan .
please guide.
regards,
Kamran