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In other words, depending on the application, a window like the one below will open under Printer Properties or Preferencies:
In Paper Source, select Bypas Tray and in Paper Type, select the desired material - e.g. Transparency as in the picture.
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You can print double-sided when using the bypass tray. Once again, go to Printer Properties and Finishing tabs.
Select 2-sided Printing and the desired direction underneath it. In the picture below book binding is selected.
