The built-in print styles in Outlook tend to be less than satisfactory for
many users.  You might want to take a look at some free Word templates that
use your Outlook calendar data to create a calendar in Word, which you can
then customize to your liking and print as necessary.  I personally use My
Outlook Calendar and am very pleased with it.  Links to these templates can
be found here:

http://www.slipstick.com/addins/calendar.htm#print