4 Does an error message appear on the printer control panel display?
● See Procedure 3 in this section for a list of network-related error messages and corrective
actions.
● See your printer documentation for a complete list of control panel messages and corrective
actions.
Procedure 3: Resolving Printer Display Error Messages
Check the following information to resolve network-related error messages that appear on the printer
control panel display. This information assumes you have already printed a configuration page.
1 Does the printer's control panel display a Service Error message, such as 49.xxxx, 79.xxxx or
8x.xxxx error?
● Refer to your printer manuals to interpret the error message.
● Power the print server off/on by turning the printer off, then on again.
● Verify the network cable is properly connected.
● Inspect and verify the configuration parameters on the Jetdirect configuration page. To
interpret HP Jetdirect configuration page messages, see 
HP Jetdirect Configuration Page.
● Record all error codes and contact your service provider. For warranty service, include all
diagnostic and configuration pages with the faulty print server.
2 Does Initializing/Do Not Power Off or similar message appear on the display?
Wait several minutes to see if it clears. If it does not, isolate the embedded LAN from the printer
using the instructions in 
Disabling the Embedded LAN to see if the printer Ready message will
appear without the LAN.
3 Does a 40 Error appear on the printer's control panel display?
The HP Jetdirect print server detected a break in the data communications. When this error
occurs, the printer goes offline.
A break in communications may result from the physical network connection being disrupted or
the server going down. After the communications problem is solved, press the Select 
 button
to put the printer back online.
4 Does an Initializing or similar message appear on the display?
This is a normal message. Wait several minutes for the message to clear, or for another
message to appear. If another message appears, see the printer's documentation and
configuration pages for additional information.
5 Does a message other than Ready appear on the display?
See your printer documentation for a complete list of control panel messages and corrective
actions.
ENWW General Troubleshooting 69