5. Press [Paper Size].
To specify for the bypass tray, press [Paper Size: Printer].
The size of the paper in Tray 1, Tray 3 (LCT), and the large capacity tray is fixed and
cannot be changed.
6. Press [Custom] from the list shown.
7. Press the value in the "A" or "B" field, and then enter the new value.
Specify the values within the numbers of "< >", and then press [Done].