About ECO settingsThis setting allows you to use automatic duplex printing as a default to save paper and to turn the machineon/off automatically to save electricity.Using Duplex PrintingTurning on/off the machine automaticallyImportant• Depending on the setting item, authentication by the administrator password is required.About the Machine AdministrationIf you do not know the administrator password, ask the administrator of the machine you are using.Using Duplex PrintingFollow the procedure below to use duplex printing.1. Make sure that the machine is turned on.2. Flick the HOME screen, then tap ECO settings.Using the Operation Panel3. Tap Two-sided printing setting.4. Specify the settings as necessary.A. Tap to select two-sided copying as a default.B. Tap to select duplex printing PDF files saved on a USB flash drive as a default.C. Tap to select two-sided printing of sent/received faxes, reports, or lists as a default.D. Tap to specify the print settings.Note• When duplex printing is selected, the icon is displayed on each menu of the HOMEscreen or on the setting items for duplex printing on each print setting screen.269