From the main menu, File ➭ Print or 'command-p' on the keyboard.
This will send the chart to any printer connected to your computer or allows you to save the chart as a PDF.

If you want the chord diagrams in the chart, turn on the Chord font you want, here is how.

In case you have a chart that has only 4-5 systems, the printer might default to landscape.
Open the Editor and add an extra character 2-3 lines under the last bar to make sure the chart will be printed in portrait.