The Duplex function cannot be used with translucent paper. If the Duplex function is specified, press [1 sided 2 sided:TtoT] to cancel the setting.
When Using the Copy Application
About how to use the application's screen, see "[Copy] Screen".
When Using the Copier (Classic) Application
For details about how to use the Classic Copier function, see Procedure for copying onto translucent paper (classic).