When I view all projects and then "print current page" I get all of my notes duplicated under the same task. For instance, if I have a task with notes "A" and "B", when I print I get a task with notes "A" "B" "A" "B"
Are you using the web version, or one of our apps/plugins? Also, does this happen if you print just a Project, or another type of view?
And to clarify, you only have duplicate notes when trying to print correct? I would suggest trying to clear your cache for the browser you are using.