Jam detection .................................................................................................................. 216 Clear jams from the ADF ................................................................................................. 217 Clear jams from the print-cartridge area .......................................................................... 219 Clear jams from the input-tray areas ............................................................................... 220 Clear jams from the duplexer ...........................................................................................
222 Clear jams from the output-bin areas .............................................................................. 223 Interface troubleshooting ................................................................................................................. 225 Communications checks .................................................................................................. 225 LAN hardware test ........................................................................................................... 225 Service mode functions ....................................................................................................................
226 Boot-up key sequences ................................................................................................... 226 Low-level boot-up key sequence for selecting a language, performing a cold reset, and enabling and disabling embedded LAN ......................................... 227 Medium-level boot-up key sequence for initializing disks ............................... 227 High-level boot-up key sequence for NVRAM initialization, manufacturing, and skipping disk-load and calibration ............................................................ 227 Service menu ...................................................................................................................
228 Service ID ........................................................................................................................ 228 Restore the service ID ..................................................................................... 229 Convert the service ID to an actual date ......................................................... 229 Troubleshooting tools ....................................................................................................................... 230 Control-panel menus .......................................................................................................
230 Print Quality menu ........................................................................................... 230 Troubleshooting menu .................................................................................... 231 Early-boot diagnostic test ................................................................................................ 233 Test pages ....................................................................................................................... 234 Engine-test page .............................................................................................
234 Formatter test page ......................................................................................... 235 Embedded Web server ................................................................................................... 235 Gaining access to the embedded Web server ................................................ 235 Information tab ................................................................................ 235 Settings tab ..................................................................................... 236 Networking tab ...............................................................................
236 Other links ...................................................................................... 236 Image defect ruler ............................................................................................................ 238 Firmware updates and recovery ....................................................................................................... 239 Determine the current level of firmware ........................................................................... 239 Download the new firmware from the HP Web site .........................................................
239 Transfer the new firmware to the device .......................................................................... 240 Use FTP to upgrade the firmware on a network connection ........................... 240 Use HP Web Jetadmin to upgrade the firmware ............................................. 241 Use MS-DOS commands to upgrade the firmware ......................................... 242 Upgrade the HP Jetdirect firmware .................................................................................. 242 Troubleshoot general printing problems ...........................................................................................
243 Troubleshoot media-handling problems ........................................................................................... 246 Multiple pages feed .......................................................................................................... 246 Pages are wrinkled or folded ........................................................................................... 246 Pages are skewed ........................................................................................................... 247 Troubleshoot print-quality problems ................................................................................................
248 Print-quality checklist ....................................................................................................... 248 ENWW vii