No, (you shouldn't lose your docs etc... but see below!) uninstalling MS Office and then rebooting (very important) and then reinstalling might do the trick, but there is something unusual going on here...
Did you try renaming your global template ( normal.dotx) like the linked article suggested?
Make sure that you have your MSOffice product serial code correctly noted down correctly and the installation media (DVD) or executable) to hand as you will need that for the reinstall....
At the same time check and then double check that all your back ups of everything that is important to you on your computer, works correctly, and are reproducible.... have at least one extra copy kept safe offsite on removable media.
Uninstalling Office should not affect your documents etc, but there is something obviously wrong with your set up, so heaven only knows what has happened, hence my emphasis of checking your back ups carefully, just to be on the safe side.
If you have a good recent disc image (as you should have) then if the Office uninstall/reinstall doesn't fix the printing problem for any reason, then I would not be inclined to to spend any more time on it but just to re-image....
That way you would be up and running again, printing correctly in less time than it takes to walk the dog!
Hope the back is "mending" OK