Hello,
I recently purchased the Canon imageCLASS MF644CDWBN and I have noticed that it occasionally will fail to properly align certain pages within a pdf. As an example, see the references on this page https://imgur.com/a/CBd0wk3 which are cut off. I set the option "fit to printable area" when printing. This seems to only occur on 1-2 pages within a much larger PDF. Does anyone have any ideas as to what is going on? I never had this issue with my previous laser printer.