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6 Troubleshooting
Chapter contents .............................................................................................................................. 129
Troubleshooting process .................................................................................................................. 130
Basic troubleshooting ...................................................................................................... 130
Control-panel messages .................................................................................................................. 131
Control-panel message types .......................................................................................... 131
Resolve control-panel messages ..................................................................................... 131
Clear jams ........................................................................................................................................ 148
Avoid jams ...................................................................................................................... 148
Typical jam locations ....................................................................................................... 149
Jam detection .................................................................................................. 150
Clear jams from the input-tray areas ............................................................... 151
Clear jams from the print-cartridge area ......................................................... 153
Clear jams from the output-bin areas .............................................................. 154
Clear jams from the optional duplexer ............................................................ 155
Interface troubleshooting ................................................................................................................. 157
Communications checks .................................................................................................. 157
Computer direct connect (parallel) test ........................................................... 157
EIO troubleshooting ......................................................................................................... 157
Jetdirect page .................................................................................................. 158
Network printing problems ............................................................................................... 158
Service mode functions .................................................................................................................... 160
Cold reset ........................................................................................................................ 160
NVRAM initialization ........................................................................................................ 160
Hard-disk initialization ...................................................................................................... 161
Skip disk-load .................................................................................................................. 161
Self test ............................................................................................................................ 161
Service menu (service PIN codes) .................................................................................. 161
Service ID ........................................................................................................................ 162
Restoring the service ID .................................................................................. 162
Convert the service ID to an actual date ......................................................... 163
Troubleshooting tools ....................................................................................................................... 164
Control-panel menus ....................................................................................................... 164
Diagnostics menu ............................................................................................ 164
Test pages ...................................................................................................................... 165
Engine-test page ............................................................................................. 165
Formatter test page ......................................................................................... 166
Image defect ruler ............................................................................................................ 167
Upgrade the firmware ....................................................................................................................... 168
Determine the current firmware version ........................................................................... 168
Download the new firmware from the HP Web site ......................................................... 168
Transfer the new firmware to the device .......................................................................... 168
Use FTP to upgrade the firmware on a network connection ........................... 168
Use HP Web Jetadmin to upgrade the firmware ............................................. 169
Use MS-DOS commands to upgrade the firmware ......................................... 170
Upgrade the HP Jetdirect firmware .................................................................................. 171
Troubleshoot general printing problems ........................................................................................... 172
Troubleshoot media handling problems ........................................................................................... 175
Multiple pages feed .......................................................................................................... 175
Pages are wrinkled or folded ........................................................................................... 175
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