HP Jetdirect LEDs
The embedded HP Jetdirect print server has two LEDs. The yellow LED indicates network activity, and
the green LED indicates the link status. A blinking yellow LED indicates network traffic. If the green LED
is off, a link has failed.
For link failures, check the network cable connections.
For nonlink errors, print a configuration page. The second page is the HP Jetdirect configuration page.
Examine this page for any inconsistencies among the network settings.
Engine diagnostics
Printing test pages helps you determine whether or not the product engine and the formatter are
functioning.
NOTE: Information pages also can be used to solve product issues. For information about printing
information pages, see the product user guide.
Engine-test button
To verify that the product engine is functioning, print an engine-test page.
Print the engine test pages
NOTE: A damaged formatter might interfere with the engine test. If the engine test page does not print,
try removing the formatter and performing the engine test again. If the engine test is then successful,
the problem is in the formatter, the control panel, or the cable that connects them together.
1. Remove the DIMM cover. See DIMM cover and DIMM on page 57.
2. Press the engine test-page button (callout 1).
Figure 3-2 Locating the engine-test-page switch
1
The test page should have a series of horizontal lines. The test page prints from the last tray that the
product used to print, unless the product has been turned off and then turned on again since the most
recent print job. If the product has been turned off and then on again since the most recent print job,
134 Chapter 3 Solve problems ENWW
