Hmmm...well mine has never washed out that badly, but it does soak up the ink.

I don't do the canvas anymore simply because I don't want to end up wrecking my printer right now :)

Check the dpi in your set up.  I set mine every time I print.  I don't know why you are printing them out (ie your own use, to sell  etc.) but that will make a difference in what materials you use for archival quality etc.

My dpi is at 1440 or better when I print out and the paper I use is archival.