venkat17402,
Direct printing will only work from a parallel port attached printer, anything that will work with the old school c:>type filename.txt >lpt1. USB printers need drivers so it's a no go.
The preferred method to accomplish your goal is as follows.
1) Boot PCDR DOS from the thumb drive.
2) Choose ram drive for logging.
3) Run tests save logs to the a:\ drive (the MUD, Multipurpose USB Device)
You could also save multiple logs to the ram drive then copy *.log to a: from DOS.
4) Place the MUD in a workstation and print the logs out.
If you boot from CD and have the MUD inserted, usually the MUD will be drive C:. If you exit to DOS (ESC from the main menu system or Quit > Exit Diags from PCDR menu) and a look around the drive letters you can confirm the drive letter assignment of the MUD.
-Fred