Currently Being ModeratedJan 16, 2013 10:25 PM (in response to Ouibondaccord)
There is a printer driver and ICA scanner driver available from Apple, as per this article. So with the MX connected to the Mac via USB, both drivers should be downloaded from Apple and you should then see a Print and a Scan entry under the same icon in Print & Scan. Do you only have the printer icon in Print & Scan?
Also, for future reference, this is the Lion forum so please use the Mountain Lion forum.