To Fix the printing of emails issue there are two method that will help you to fix printing email problem on Internet Explorer.
Reset Internet Explorer
We would suggest you to reset Internet Explorer settings so as to get rid of Internet explorer problem message on your screen. It might be possible that while working you might have turned on protected mode or it is possible that some settings are been changed that result in error in printing email issue.
After you have reset your Internet Explore settings your Internet Explorer will return to the state it was in when it was first installed on your computer. Resetting Internet Explorer to its default settings will not delete your favorites, feeds, Web Slices, and a few other personalized settings
Restore Your System
If there was no problem before and after performing METHOD 1 your are not able to fix the issue then try system restore, this will restore your system to its factory setting when it was working. Use start button the open system restore by clicking All Programs, clicking Accessories, clicking System Tools and then clicking System Restore. To perform this you have to be login as an administrator.