When [Use Paper Tray Settings] is selected, the machine scans the originals based on the size and orientation of the paper loaded in the selected tray. With this method, you do not have to specify the size and orientation of the originals.
When Using the Copy Application
About how to use the application's screen, see "[Copy] Screen", Getting Started.
When Using the Copier (Classic) Application
For details about how to use the Classic Copier function, see Procedure for using paper tray settings (classic).