Lost setup cd-rom for pixma-mp-250. need replacement cd.

Depending where you live you need to go to the Canon Support websit.

Here's the one for the UK :- http://www.canon.co.uk/support/

Click on the software and downloads link :- http://software.canon-europe.com/

Select the Country, Product and model you require :-

http://www.canon.co.uk/Support/Consumer_Products/products/Fax__Multifunctionals/InkJet/PIXMA_MP_series/MP250.aspx?type=download&page=1

Then choose whether you want Software, Manuals or Firmware upgrades, then download and install as required. You don't need a disk but you can burn one with all the downloads if you require

Http://usa.canon.com/cusa/consumer/products/printers_multifunction/photo_all_in_one_inkjet_printers/pixma_mp250#DriversAndSoftware

Select your OS from the drop-down menu, then download the latest driver and software installers. You can burn those installers to a blank CD-R.