© 2004 Oki Dat a Americas, Inc. 58368601

Install the Duplexer

1. Unpack the duplexer and remove
the shipping materials.
2. Turn off the printer.
3. Insert the duplexer through the
hinged door in the back of the
printer.
4. Turn on the printer.
5. Print out the Menu Map.
a. Press + one or more times until
INFORMATION MENU appears
on the display.
b. Press ENTER twice.
The MenuMap prints.
6. Check to be sure that “DUPLEX
installed” shows in the information
at the top of the first page. If it
doesn’t, turn off the printer and
push firmly on the duplexer to be
sure it is firmly seated in the
printer, then turn on the printer and
print the MenuMap again.
7. If you will always be using duplex
printing, go into the printer menu
and change the default setting for
DUPLEX to ON:
a. Press + until you see PRINT
MENU on the display.
b. Press ENTER.
c. Press + until you see DUPLEX
on the display.
d. Press ENTER.
e. Press + to change the setting
from OFF to ON.
f. Press ENTER to engage the
setting, then press ON-LINE to
save the setting and exit the
menu.

Activate the

Duplexer in the

Printer Driver

Windows®
PCL Driver (C5400, C5400n)
Click Start → Settings → Printers
[Printers and Faxes for XP].
The Printers (Printers and Faxes)
dialog box opens.
8. Right click the PCL printer icon,
then click Properties
9. Click the Device Option(s) tab.
10.Click Duplex Option Unit.
11.Click OK, then close the Printers
(Printers and Faxes) dialog box.
Postscript Emulation Driver
(C5400n)
1. Click Start → Settings → Printers
[Printers and Faxes for XP].
The Printers (Printers and Faxes)
dialog box opens.
2. Right click the Postscript
emulation printer icon, then click
Properties.
3. Next:
–Windows XP, 2000 and NT 4.0:
click the Device Settings tab.
–Windows Me and 98: click the
Device Options tab.
4. Under Installable Options, click
Duplex and select Installed.
5. Click OK, then close the Printers
(Printers and Faxes) dialog box.
Hiper-C Driver (C5150, C5200)
1. Click Start → Settings → Printers
[Printers and Faxes for XP].
The Printers (Printers and Faxes)
dialog box opens.
2. Right click the printer icon, then
click Properties.
3. Next:
–Windows XP, 2000 and NT 4.0:
click the Device Option(s) tab.
–Windows Me and 98: click the
Printer Properties tab, then click
the Device Option tab.
4. Select Duplex Option Unit.
5. Click OK, then close the Printers
(Printers and Faxes) dialog box.
Macintosh®
OS 8.x and 9.x (C5400n)
1. Activate Chooser from the Apple
menu.
2. Select LaserWriter 8.
3. Click Printer → Setup.
4. Click Configure.
5. Change the Duplex Unit setting to
Installed.
6. Click OK twice.
7. Close Chooser.
OS X to X.1 (C5400n)
No activation is required.
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C5150/C5200/C5400/C5400nDuplex Option
Oki 42158411 Duplex Unit

Installation Instructions

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