HP LaserJet 8000 Multifunction Printer series - Manual (Page 226)

Chapter 5 Problem Solving 226
Determining Printer Problems
3. Reinstall the print server.
4. Verify that the configuration of the connecting network device (such as a 10/100TX
network switch) matches. For example, to set the print server for 100TX Full-duplex
operation, the port on the network switch must also be set for 100TX Full-duplex
operation.
5. Turn the printer off and back on
6. Check the print server operation. If the print server fails to link, contact a local
authorized HP dealer or service representative.