Timing diagram ............................................................................................... 203 Circuit diagram ................................................................................................ 204 Print-quality troubleshooting tools .................................................................................... 205 Repetitive image defects ................................................................................. 205 Calibrate the product .......................................................................................
205 Internal print quality test pages ........................................................................................ 206 Cleaning page ................................................................................................. 206 Service page ................................................................................................... 206 Diagnostics pages ........................................................................................... 206 HP ToolboxFX software ...................................................................................................
208 Control-panel messages .................................................................................................................. 209 Event-log messages ......................................................................................................................... 217 Paper-handling problems ................................................................................................................. 219 Jams ................................................................................................................................ 219 Recover jams ..................................................................................................
219 Common causes of jams ................................................................................. 220 Clear jams ....................................................................................................... 221 Where to look for jams .................................................................... 221 Clear jams from the input-tray areas .............................................. 221 Clear jams from the output-bin ....................................................... 222 Clear jams from the ADF (fax/memory-card models only) .............
223 Solve image quality problems .......................................................................................................... 227 General image quality problems ...................................................................................... 227 Solve issues with color documents .................................................................................. 231 Copy problems ................................................................................................................. 232 Prevent copy problems ...................................................................................
232 Image problems .............................................................................................. 232 Media-handling problems ................................................................................ 234 Performance problems .................................................................................... 235 Scan problems ................................................................................................................. 236 Solve scanned-image problems ...................................................................... 236 Scan-quality problems .....................................................................................
238 Prevent scan-quality problems ....................................................... 238 Solve scan-quality problems ........................................................... 238 Solve performance problems ........................................................................................................... 240 Solve connectivity problems ............................................................................................................. 241 Solve direct-connection problems .................................................................................... 241 Solve network problems (network models only) ..............................................................
241 Service mode functions .................................................................................................................... 243 Service menu ................................................................................................................... 243 Service menu settings ..................................................................................... 243 Secondary service menu ................................................................................................. 243 Open the secondary service menu .................................................................
243 Secondary service menu structure .................................................................. 244 ENWW ix