Odd thing happened today. I printed an 8.5x11 and it printed only a corner of the image, almost like it was trying to print on a 13x19. Print dialogue said I needed to add more paper.
It looks like there's some enlargement accidently set in the printer driver, not an unknown problem!
I'm not sure what you mean by "Print dialogue said I needed to add more paper" unless Multi-page printing is selected in the driver.
I suggest you carefully check the "Page Setupt" driver settings for either "scaled" and "multi-page" printing. I think those are the Canon driver terms, see screen shot below.
Terry