Printing
You can print a net on a printer with File → Print, or from the command line. First you may want to use File → Printer Setup to select printing options, such as page size, margins, magnification/reduction, and which printer to use. After pressing Okay on the first dialog box which comes up, if the diagram is large enough, you will be queried for how many pages large you want the printing to be (default is to appear on one page). If you leave those entries blank, then you will be queried for a printer magnification instead (default is 100%).
Multi-Page: If the net diagram is larger than one page, then the printer will print parts of it on separate pages in such a way that the pages can be trimmed and then attached together to produce the overall diagram. If you wish to see what part of the diagram will end up on which page, you can turn on the page breaks by = 4 && typeof(BSPSPopupOnMouseOver) == 'function') BSPSPopupOnMouseOver(event);" class="BSSCPopup" onclick="BSSCPopup('X_PU_toggle_menu.htm');return false;">toggling Layout → Show Page Breaks. This will draw light blue lines at the page divisions, which can also be useful for visualizing your drawing size.
When you change the magnification/reduction (or margins, etc.) using File → Printer Setup, the page break lines will shift showing how much fits on each page.
If you want really professional graphics results from Netica use SVGs.