Solution
As my name implies I do not use MACs, but I was having the same problem with my printer and Word. After an hour of messing with every setting imaginable, I found the solution, follow these steps...I hope it works for you too:
*** NOTICE: These instructions will alter the NORMAL "DEFAULT" TEMPLATE in Microsoft Word, to ensure you do not change anything other than the setting listed here ALWAYS start with a NEW DOCUMENT and backup your existing copy of the "NORMAL" template prior to making changes. The "Normal" template can be found in "C:\Documents and Settings\"your user name"\Application Data\Microsoft\Templates" for WINDOWS based computers; MAC users, please refer to Microsoft's website to locate the "NORMAL" template on you own computers and make a copy of it (in another location) prior to making the following changes! YOU HAVE BEEN WARNED! ***
1) Open a NEW Word DOC
2) Goto "File" --> "Page Setup"
3) Click the "Layout" tab at the top & find the section for "Headers and Footers"
4) Change the "From Edge" for the footer to "0.6" (The default is 0.5)
5) Click the "Default" button at the lower left
6) You will prompted that you are altering the "normal" template...click "YES"
Print test page with a footer to ensure this has fixed your problem... if it is still cutting off the bottom try setting the footer to 0.7, etc. By clicking the "Default" button this will not apply to all new documents created so you don't need to change it every time you create a new document (older documents may require alteration prior to printing however).
If you do not wish to alter the NORMAL TEMPLATE then simply follow steps 1-4 and click "OK" instead of "Default"...however, you will need to make the change manually every time you create a new document.
Like I said I am not a MAC person, so I cannot guarantee this will work for you, but it worked for me.
JC