Enabling Win 2008 R2 Print server logging

1. Login to the server
2. From Server Manager, expand Diagnostics and Event Viewer
3. Expand Applications and Services Logs
4. Expand the Microsoft folder, expand the Windows folder
5. Expand the PrintServices folder
6. Right-click on the Operational Log, and click Enable Log

Reference:
http://social.technet.microsoft.com/wiki/contents/articles/1466.windows-server-2008-r2-and-print-logging.aspx