Oki 3037 - Manual (Page 329)

ES 3037/3037e Windows NT 4.0 Printer Drivers • 329
For the duplex unit
PostScript driver
1. Click Start
→
Settings
→
Printers .
2. Highlight the printer name and click File then Properties .
3. Click the Device Settings tab. Under Installable Options ,
make sure that Duplex is set to Installed in the Change
‘Duplex’ Setting list.
C93_NT_PS_Duplex1.tif
4. Click OK and close the Printers dialog box.