I experienced the same problem with a dead pixma. I called cannon and explained the problem and though they didnt resolve the issue in this call, I explained I was not satisfied with the help I received in the call and the issue was not resolved and ...
My Pixma MG5320 has same problem and I noted 5 others that had reported this issue. This isn't a coincidence, just a faulty product. Wonder what governemtn agency oversees this?