Go to System Preferences >> Print & Scan
Double click the printer that you will be using, this will open the print queue
Click the Pause button to suspend all printing
Go to your applications and print what you want to the specific printer, in each case it will ask you to "Resume" or "Add To Printer" - select "Add To Printer" to keep adding your print jobs to the queue.
When you are ready to print, go back to the queue and select "Resume"