2-4 Hardware Installation
If you want to change the detected printer language, use the LEDs 
and Test button to select a PDL for the configuration page. When 
you hold down the Test button for three seconds, the LEDs begin to 
cycle through four configurations, as outlined in the following table. 
Release the Test button when you get the right PDLs, and the 
configuration page will be printed.
When you first press the Test button, the Status and Activity LEDs 
are on and solid for about 3-4 seconds. Then they switch off, 
indicating they are cycling through the PDLs.
Resetting to Factory Defaults
Once you have configured the HP JetDirect external print server, 
the configuration settings are retained in memory unless you 
manually reset them.
(The firmware is not affected when you reset the configuration 
settings.)
To reset the configuration settings to their factory defaults, follow 
these steps:
1. Unplug the power cord from the print server.
2. While holding down the Test button on the print server, plug the 
power module into the print server and continue to hold down 
the Test button for five seconds. All previous configuration 
settings will be erased.
For PDL...
The Status 
LED is...
And the Activity 
LED is...
HP PCL (default)       Off       Off
ASCII       Off       On
Postscript       On       Off
HP-GL/2       On       On