I have the same issues with my Canon color printer (model Pixma iP4920 ). It will not power on, (no green or orange indicator light). I checked all the cables to make sure they are secure as well as multiple outlets). I turned it off for over 10 minutes, then actually re-installed the software. It still does not turn on.
It is strange that it has been working well for about a year with no problems, then today it doesn't work at all.
Any suggestions for other things I can try?
John