Top Page > Paper Specifications and Adding Paper > Loading Paper > Loading Paper into the Bypass Tray > Settings to Use the Bypass Tray under the Printer Function > Setting the paper size using the control panel
Press the [User Tools/Counter] key.
Press [Tray Paper Settings].
Press [].
Press [Printer Bypass Paper Size].
Select the paper size.
Press [OK].
Press the [User Tools/Counter] key.