Open the BARR/PRINT TCP/IP Configuration utility.
Select the LPD
tab. 
Under Trace controls, verify the File name of the trace file.
If you have communications problems, you can capture an LPD trace. Complete the following steps to capture a trace.
Open the BARR/PRINT TCP/IP Configuration utility.
Select the LPD
tab.
Under Trace controls, verify the File name of the trace file.
Click Start.
Receive a file with LPD.
Click Stop when you are finished tracing. The trace file is automatically stored in the \\Program Files\Common Files\Barr\Trace folder. When you capture diagnostics with the Diagnostics Utility, this file will be automatically included.
Leaving the LPD trace running can greatly degrade performance.
The LPD trace is intended as a diagnostic tool only and must not be used
in production settings. If you close the BARR/PRINT TCP/IP Configuration
utility while the trace is running, a message will display asking if you
want to stop the trace.
