Ricoh Aficio SP C400DN Hardware Manual page 109

C
Select [Paper Size: Bypass] using {T} or {U}, and then press the {OK} key.
D
Select [Custom Size] using the scroll keys, and then press the {OK} key.
•
•
E
Enter the vertical value using {T} or {U}, and then press the {OK} key.
By pressing the key, the value increases or decreases by 0.1 mm. By pressing
and holding the key, the value varies by 1 mm.
F
Enter the horizontal value using {T} or {U}, and then press the {OK} key.
G
Press the {Menu} key to return to the initial screen.
Reference
For details about the printer driver, see the printer driver Help.
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