Message listing ................................................................................................................. 359 Formatter lights .................................................................................................................................. 395 Embedded HP Jetdirect LEDs .......................................................................................... 395 Heartbeat LED .................................................................................................................. 396 Accessory lights (4700 models) ........................................................................................................
397 Interpreting stapler/stacker indicator light codes .............................................................. 397 Replacement parts configuration ....................................................................................................... 400 Formatter and DC controller ............................................................................................. 400 Formatter (new or previously installed in another printer) ................................................ 400 DC controller (new or previously installed in another printer) ..........................................
401 Formatter and firmware compact flash ............................................................................. 401 Paper path troubleshooting ............................................................................................................... 402 Jams .................................................................................................................................. 402 Jam locations .................................................................................................................... 402 Jam locations by error message .......................................................................................
405 Jam recovery .................................................................................................................... 406 To disable paper jam recovery ......................................................................... 407 Avoiding jams .................................................................................................................... 407 Solving repeated jams ...................................................................................................... 408 Persistent jams .................................................................................................................
408 Basic troubleshooting for jams ......................................................................... 408 Data collection .................................................................................................. 409 General paper path troubleshooting ................................................................ 409 Paper path checklist ......................................................................................... 410 Jams in Tray 1 .................................................................................................. 410 Jams in Tray 2 ..................................................................................................
411 Jams in the paper path ..................................................................................... 412 Jams in the top cover ....................................................................................... 412 Jams in the duplex path ................................................................................... 413 Common causes of paper jams ........................................................................................ 414 Paper jams .......................................................................................................
414 Clearing jams .................................................................................................................... 415 Jam in Tray 1 ................................................................................................... 415 Jam in Tray 2 or optional trays ......................................................................... 416 Jams in top cover area ..................................................................................... 417 Clearing a jam in the top cover area ............................................... 418 Clearing other jams ..........................................................................................
420 Jams in the stapler/stacker (4700 models) ...................................................... 423 Staple jams ....................................................................................................... 429 Paper transport troubleshooting ........................................................................................................ 432 Multiple pages are fed ...................................................................................................... 432 Media is wrinkled or folded ...............................................................................................
432 Paper is skewed ................................................................................................................ 433 Image formation troubleshooting ....................................................................................................... 434 Print quality troubleshooting tools ..................................................................................... 434 Print quality problems associated with media .................................................................. 434 Overhead transparency defects ........................................................................................
435 Print quality problems that are associated with the environment ..................................... 436 Print quality problems that are associated with jams ....................................................... 436 Print quality troubleshooting pages .................................................................................. 436 xii ENWW