Oki ES9455 MFP Printing Manual page 77

2 PRINTING FROM WINDOWS
2.PRINTING FROM WINDOWS
To register a custom paper size, either A (Length) or B (Width) should differ by more than 0.3 inches (7 mm) from
the standard paper size. If not, the created custom paper size is considered as the standard paper size.
You cannot create a custom paper size with A (Length) longer than B (Width). If you want to print such a document,
do so by selecting [landscape] for the [Orientation].
There are some precautions when you use paper larger than the standard sizes. For details, see the following
page:
P.120 "Printing on paper larger than standard sizes"
Setting Up Print Options 75