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 vi ENWW