Sorry for being late in answering your query.
Would you mind letting us know the application you are using to print the pdf- Adobe Reader/ Adobe Acrobat?
The operating system installed on the machine- Mac/Windows?
Also, try printing pdf as image and check if it prints fine. More info here: Print PDF as image | Adobe Acrobat, Reader
If that doesn't work, try printing using "shrink oversized pages" option as suggested by Atul in this link (at post #3): pdf files not printing whole page
Let us know how it goes.
As your thread is 2 weeks old: Did you solve your problem in the meantime?
The portion that prints prints in the original scale or is that scaled down to the paper size?