Brother 8840D : Scanning over the network problem

I got this scanner/printer/fax combo from Brother.
I also have a stand alone print server box which is connected to my
network, and which connects the 8840D using a USB cable.
I succeeded in getting both the printer and the fax work over the
network ( The Fax appears as a printer on the computers )
1. I was wondering if it is possible to get the scanner to work over
the network ( I should be able to scan papers using any computers on
the network )
2. If that is not possible, I was wondering if I could buy a cheap USB
switch that has multiple USB inputs and outputs, so that I would be
able to connect a computer to the switch using USB for scanning
purposes and the printserver will also be connected to the switch for
network printing purposes. ( Both the computer and printserver connects
to teh switch input and the 8840D is connect to the output of the
switch )

Thanks for reading
--sony