Oki 3037 - Manual (Page 257)

ES 3037/3037e Windows Me/98/95 Printer Drivers • 257
For the duplex unit
PostScript or PCL driver
1. Click Start
→
Settings
→
Printers .
2. Highlight the printer name and click File then Properties .
3. Click the Device Options tab, check Duplex Option Unit .
C93MePCLDuplexk.tifpsdeviceoptionsduplex.tif and
4. Click OK .
PostScript Driver PCL Driver