Open the Curator Print Server.
Next to 'Printer' select Sinfonia as your printer as shown below:
Click the gearbox icon next to the drop-down menu and the Printer Properties window will open as shown below:
Click on 'Preferences' button to get the Window below:
Select Print Size to be 4x6 split. Click 'Apply' and 'OK'
Your printer will now cut the paper as photo strips instead of full 4x6 sheets.