Duplex Unit: Enabling
PostScript
Certain options such as additional memory, the duplexer, or additional trays may be installed in your printer.
Before using the printer, you must enter the printer driver(s) and enable the options. You only need to do this once.
1.Click Start → Settings → Printers.
2.Highlight the printer name. Click File then Properties.
3.Click the Device Settings tab.
4.Under Installable Options, make sure the Duplex is Installed.
5.Click OK. Close the Printers dialog box.
Executive Series 2426 Printer Family User’s Guide
Windows NT Printer Drivers • 408