Oki C5400 Guide: User's, C5400 Series (American English) - Page 232

Duplex Printing (Printing on Both Sides of The Paper) Me and 98 NOTE The optional duplex unit must be installed in the printer and enabled before duplex printing can be carried out. • Paper weight range 20 to 28 lb. US Bond (75 to 105 g/m²). • Paper must be loaded print side up. • Any tray (Tray 1, optional Tray 2, MP tray) can be used for duplex printing. NOTE These instructions explain how to change the settings as you are printing a job. If you wish to change the settings to apply to all jobs: • Click Start → Settings → Printers. • Right click the Postscript emulation printer, then select Properties. • Follow steps 3, etc., below. Note that the Properties screen for setting defaults will have more tabs. 1. Open the file in your application and select File → Print. 2. In the Print dialog box, click the Postscript emulation driver, then click Properties. Windows: Postscript Emulation Driver • 230