Outlook 2010 calendar prints 30 minute meeting slots as 60 minutes

When I schedule a 30 minute meeting in Outlook, and I have checked and confirmed it is for 30 minutes, when I print the weekly version of the calendar it prints out as a 60 minute block and not 30 minutes. This gets quite difficult to read when there are several 30 minutes meetings back to back and they all print out as 60 minutes. Has anyone else come across this issue, if so have you been able to get it resolved? It started about 2 months ago for me.