Oki CX1145 MFP Operator's Manual For Basic Function page 80

When a standard size paper other than LD, LG, LT and ST-R is set
Register the size of the placed paper to the [OTHER] button with the following procedure. The registered
paper size is automatically selected when the [OTHER] button is pressed.
Press the [OTHER SIZE] button.
1
Press the paper size button corresponding to the paper that has been
2
set.
E.g.: When COMP-size paper is set
Press the [OTHER] button.
3
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