I ran into this same error code 1311, but in my case I never had jammed paper, so nothing to remove. I did not have any 4x6 or 5x7 paper loaded in the upper tray, so couldn't be from there.I found the post below, where the user pushed thicker stock p...
Great photo. 6 years later, I received the error code 1311 about upper cassette and I was unable to find paper jammed in bottom or back and error would not go away to access the Menu. I have not been using the upper tray so there was no 4x6 or 5x7 pa...
