When paper of the same size is loaded in both the standard tray and the paper feed unit (option), and when [Auto Tray Select] is set with the printer driver, paper will be fed from the standard tray when you start printing. To print on paper loaded in the paper feed unit, switch the tray to be used to the paper feed unit using [Tray Priority] in the [Paper Input] Menu.
Press the [Menu] key.
Press the [] or [] key to select [Paper Input], and then press the [OK] key.
Press the [] or [] key to select [Tray Priority], and then press the [OK] key.
Press the [] or [] key to select the tray type you want to use, and then press the [OK] key.
Press the [Menu] key to return to the initial screen.