Hi
Below snippet is taken directly from the Online Express Tools Help File -
<snip>
Note:
PLT2DWG does not support Draftpro DXL and Draftpro EXL which are listed as options 6 and 7 in the Supported Models section under the Hewlett-Packard (HP-GL) ADI 4.2 - by Autodesk, Inc. device driver. Also, the default system printer and the HPGL/2 printer are not supported.
</snip>
Have a good one, Mike