By default individual products do not print to an items printer. To set the item to print to a specific printer:
1) Log in to the management console and select the Products tab
2) Navigate to the desired product by either searching for it or via the Product Tree
3) Select the Product Details screen (Pencil Icon) of the desired product
4) Select "Display/Print" options from the lefthand side of the screen
5) Scroll down on the right hand side of the screen to the "Printers" field. Click the field and select the appropriate printer.
6) Scroll back to the top of the page, Save and refresh the POS terminals for the changes to take effect.
This can also be done for multiple products at once via an Excel Import/Export. For more information, go here.