W:Failed to fetch http://ppa.launchpad.net/michael-gruz/canon/ubuntu/dists/trusty/main/binary-amd64/Packages  404  Not Found
, W:Failed to fetch http://ppa.launchpad.net/michael-gruz/canon/ubuntu/dists/trusty/main/binary-i386/Packages  404  Not Found
, E:Some index files failed to download. They have been ignored, or old ones used instead.