If you print to one printer with a default setup, nothing needs to be done.
If you print to two or more printers or use a none default setup (envelope or landscape), you need to capture the settings in a script.
Most common mistake, print Records Being Browsed rather than Current Record.
MacWorld Filemaker Pro Printing Secrets
There are plugins for Printing Control in Filemaker. https://www.google.com/search?q=printing+plugins+filemaker