How to print the Parts List.
Only the visible groups of the Parts List will appear on the printed version. The print-out will always show the date and the units of the model (to avoid the Spinal Tap - Stonehenge problem).
The extent of the margins can be configured in the General Preferences.
Parts List as printed
If you have entered a Name and a Description for your model in the Window -> Model Info -> File, then this information will appear at the top of the print. In addition to the name, the Scene will also appear on the print.
The print will adapt to the paper format of the selected printer.
If the Parts List shows units, the print will also have units.
To print a pdf file, install a generic pdf printer device or use your system's pdf printing capabilities.