Internal components ........................................................................................................................... 80
ADF assembly ................................................................................................................... 81
ADF jam access latch ........................................................................................................ 83
Right hinge guide ............................................................................................................... 84
Left hinge guide ................................................................................................................. 85
Damper cover, left damper spring, right damper spring, or damper base cover ............... 86
White mylar backing or white mylar backing spring ........................................................... 87
Fan filter ............................................................................................................................. 88
ADF cable .......................................................................................................................... 89
Separation pad case .......................................................................................................... 92
Clear plastic paper guide ................................................................................................... 93
White scan background ..................................................................................................... 94
Scanner controller board ................................................................................................... 95
Flatbed scanner assembly ................................................................................................. 96
Power supply ..................................................................................................................... 99
Keyboard cable ................................................................................................................ 102
Power-switch assembly ................................................................................................... 105
Scanner base fan ............................................................................................................. 106
Power plug ....................................................................................................................... 108
SCB cable ........................................................................................................................ 109
Internal control-panel cable ............................................................................................. 110
6 Troubleshooting
Troubleshooting process .................................................................................................................. 112
Initial troubleshooting checklist ........................................................................................ 112
Power-on checks ............................................................................................................. 113
Control-panel messages .................................................................................................................. 114
Control-panel message types .......................................................................................... 114
Resolve control-panel messages ..................................................................................... 114
Operational issues ............................................................................................................................ 122
LEDs ................................................................................................................................................. 126
HP Jetdirect LEDs ........................................................................................................... 126
Formatter LED ................................................................................................................. 126
Clear jams ........................................................................................................................................ 127
Solve repeated jams ........................................................................................................ 128
Calibrate the scanner ....................................................................................................................... 129
To print the calibration target ........................................................................................... 129
To calibrate the scanner .................................................................................................. 130
Calibrating the control panel ............................................................................................ 130
Resolve e-mail problems .................................................................................................................. 132
Finding the LDAP server address .................................................................................... 132
Verifying an LDAP address .............................................................................................. 132
Troubleshooting the LDAP Find Settings process ........................................................... 132
Finding an SMTP server address .................................................................................... 133
Verifying an SMTP address ............................................................................................. 133
Resolve network-connectivity problems ........................................................................................... 134
Embedded LAN troubleshooting ...................................................................................... 134
Verifying communication over the network ...................................................................... 137
Service-mode functions .................................................................................................................... 139
Cold reset ........................................................................................................................ 139
ENWW v
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