Top Page > Paper Specifications and Adding Paper > Loading Paper > Loading Paper into the Bypass Tray > Printing from the Bypass Tray Using the Printer Function > Specifying regular sizes using the control panel
Press the [User Tools/Counter] key.

Press [Tray Paper Settings].
Press [Printer Bypass Paper Size].
Select the paper size.

Press [OK].
Press the [User Tools/Counter] key.