wallPen beeps 3x when clicking on print

If the wallPen beeps 3 times when you click on the "Print" button, there may be 2 reasons for this.

1. the print file is too high, in this case either adjust the height of the file or fit another axis extension.
2. the maximum print height has not yet been confirmed. To do this, go to the "Move printer" menu item and confirm the maximum print height.