You could create a new calendar folder (right click on calendar, choose New
folder, select calendar type and name if 'for printing'. when you go to
print it, select the printing calendar and then file, print.
Or create a filter that shows nothing and print... (try a filter for
category = asdfgh) you make a custom view called Clean Print and apply it
when you want a clean calendar.
If you need help with views:
http://www.outlook-tips.net/beginner/viewmenu.htm