Info required about Canon printers authorized dealers in Karachi

Can anyone point me towards authorized Canon dealers which deal in printers? I am looking for the AIO MX series, preferably the MX850 model. If anyone can help me with this, I'd be grateful.

http://www.canon-asia.com/index.jsp?fuseaction=contactus&prod_type=sales_service_pak

Thanks, I've written to them. Lets see what happens.