Same exact issue - had the printer over two years and moderate home use/ not office use. This is first time I have had this error message pop up - very random. I can't see that rear slot is open and i have closed it numerous times in various ways...
For 7520 there are no feed settings - so I cannot change to make all printing from cassette and not rear tray I am about to quit using this canon printer and go back to hp printers -- never knew such a basic input as selecting the cassette tray would...
I have the same issue - it has all of a sudden decided that i should print from rear and not from cassette. I am considering throwing this printer against the wall to see it will reset. I have looked at online manual and elsewhere on the web and I ...
