HP Ew2400 - JetDirect Print Server Administrator's Manual page 191

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. For LaserJet printers or MFPs, does the 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.
If you upgraded the Jetdirect firmware recently, power the
print server off/on. For internal Jetdirect cards, turn the
printer off and back on again.
Reinstall the HP Jetdirect print server to ensure it is installed
correctly, and verify all connectors are fully mated.
If possible, print an HP Jetdirect configuration page and verify
all configuration parameters. To interpret HP Jetdirect
configuration page messages, see
If your printer contains multiple EIO slots, try using a
different slot.
Turn off the printer, remove the HP Jetdirect print server, and
turn the printer back on. If the error message disappears when
the print server is removed, it is likely that the print server
was causing the error. Replace the print server.
Record all error codes and contact your service provider. If you
need to replace the HP Jetdirect print server under warranty
service, include all diagnostic and configuration pages with the
faulty print server.
2. Does EIOX INITIALIZING/DO NOT POWER OFF appear on the
display?
Wait for ten minutes to see if it clears. If it does not, you may
need to replace the HP Jetdirect print server.
ENWW
Troubleshooting the HP Jetdirect Print Server 191
Chapter 9.