Welcome to Inkscape Community!
Inkscape tends to be kind of weak as far as printing. If we can't make it work, we'll probably suggest that you use a different program for printing. But first, I'm curious about this:
the size gets cut off where the default box in inkscape is.
I want to understand what this is. Can you show us a screenshot with that "default box"? Or even better, share the SVG file with us?
My best guess is that's the page border. And if your image is larger than the page, that could be part of the problem. But seeing either a screenshot or the SVG file, we can be more sure than a guess
If you need help with either making a screenshot or attaching a file, here are some detailed instructions:
http://forum.inkscapecommunity.com/index.php?action=articles;sa=view;article=12