Print Migrator is a free tool from Microsoft. You can use this tool to backup and restore printers on print servers. It backs up print configuration data to a .cab file. This is useful if you need to move printers from one server to another. It even lets you move printers between different versions of Windows operating systems. The tool also can convert from line printer remote (LPR) ports to the Standard TCP/IP Ports. It gives you a nice tree view of detailed information about the installed printers. Below are some screen shots of what
it looks like.
Download it here: Print Migrator 3.1
On Windows 7, and Windows Server 2008/2008 R2 Print Migrator is no longer supported. There are new tools called Printer Migration Wizard and Printbrm.exe (a command line tool). These are available through the print Management snap-in or through on the command line using Printbrm.exe. For more information visit: http://technet.microsoft.com/en-us/library/cc722360.aspx .