Troubleshooting checklist..................................................................................150 Power-on checks................................................................................................................150 Power-on troubleshooting overview ..................................................................150 Understanding control-panel messages .............................................................................................152 Using the digital sender help system..................................................................................152 Resolving operational issues ..............................................................................................................161 Understanding digital-sender LEDs ....................................................................................................165 HP Jetdirect LEDs...............................................................................................................165 Formatter LED....................................................................................................................165 Clearing jams.......................................................................................................................................166 Solving repeated jams........................................................................................................166 Solving e-mail problems......................................................................................................................168 Finding the LDAP server address ......................................................................................168 Verifying an LDAP address ................................................................................................168 Troubleshooting the LDAP Find Settings process..............................................................168 Finding an SMTP server address ......................................................................................169 Verifying an SMTP address ...............................................................................................169 Solving network-connectivity problems ..............................................................................................170 Embedded LAN troubleshooting ........................................................................................170 Error codes.........................................................................................................170 LAN diagnostics.................................................................................................170 Loopback test....................................................................................170 Ping test.............................................................................................171 Ping results........................................................................................171 To enable or disable the LAN............................................................................172 Hard-failure troubleshooting for the embedded LAN.........................................172 Connectivity problems........................................................................................173 Save + Restore..................................................................................................173 Verifying communication over the network.........................................................................174 To verify communication over the network........................................................174 Using diagnostic tools..........................................................................................................................175 Scanner tests......................................................................................................................175 Control panel tests..............................................................................................................175 LED test..............................................................................................................175 Display test.........................................................................................................175 Buttons test........................................................................................................176 Touchscreen test................................................................................................176 Using the service-mode functions ......................................................................................................177 Cold reset............................................................................................................................177 NVRAM initialization...........................................................................................................177 Disk initialization.................................................................................................................178 Using the Service menu .....................................................................................................................179 Using the troubleshooting tools ..........................................................................................................180 Using the embedded Web server.......................................................................................180 Features.............................................................................................................180 To view the EWS Web pages............................................................................180 Information pages..............................................................................................181 Settings pages...................................................................................................181 Digital sending pages.........................................................................................182 Networking pages .............................................................................................182 vii