Unfortunately, that's not possible in Trello!
What you might want to consider is importing Trello's calendar into a dedicated calendar app like Google Calendar that will give you many more print options and capabilities, and you might have greater success that way: http://help.trello.com/article/829-using-trello-with-google-calendar
You’re invited to our first ever Trello User Groups Good news for current and aspiring Trello enthusiasts! We’re launching Trello User Groups so that you can network, share ideas, solve ...
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