You can print:
Your default printer settings will be used. To change these settings, choose File > Printer setup before printing. To change the font, choose View > Options > Printer > Font.
The nodes will print in an indented form that shows their structure.
You can print a subtree with the nodes in bold type followed by their articles in normal type. The nodes will not be indentedthey will all appear at the same level.
To print a formatted list with the nodes indented, export the file as an HTML file, open it in a web browser, and print from the browser.