Use the following procedure to change the tray priority.
Press the [Menu] key.
The menu screen appears.
Press the [][] keys to select [Paper Input], and then press the [OK] key.
Press the [][] keys to select [Tray Priority], and then press the [OK] key.
Press the [][] keys to select the tray you want to use.
Press the [OK] key.
The selected item is displayed for two seconds with an asterisk, and then the [Tray Priority] screen appears.
Press the [Menu] key to return to the initial screen.