Multi-Function printer on OSX, Bootcamp & Parallels

Hey there guys,

I'm wondering what's the best way to connect my Canon MG6150 printer to my iMac so it's fully functional in OSX, Bootcamp (Windows 7) and Parallels. I am currently connected via USB and when I switch on the Printer it asks me what operating system I want it to connect to (if I'm on OSX and have Parallels running too).

I switch back and forth between operating systems when I'm creating art and need the scanner and printer functions of the Canon to work in whatever OS I'm using. Sometimes I can get the printer to work, sometimes it doesn't when I switch OS. Sometimes I get the scanner to work, sometimes it doesn't at all. It all depends on how I connect and what OS I originally connect to when I first switch on the Canon.

Would I be better connecting the printer to my router via USB and use it that way? Is that difficult to set up and get working fully? Would the scanner work through this connection, in all OSes?!?

This has been frustrating me for a number of days now and I'd like to get some help if possible.....

....and don't get me started on the pressure sensitivity of my Wacom Bamboo not working either......?!?!?

Thanks in advance,

George