AREA 2 and 3: Jams in the fuser and transfer area ....................... 524 AREA 4: Jams in the duplex area ................................................... 531 AREA 5: Jams in Tray 2 and the internal paper path ..................... 535 AREA 6:Jams in Tray 1 .................................................................. 539 AREA 7: Jams in optional Trays 3, 4, and 5 ................................... 543 AREA 8: Jams in the optional finishing devices ............................. 547 AREA 9: Jams in the ADF .............................................................. 552 Clear staple jams ............................................................................
553 Jam recovery ................................................................................................... 557 Product feeds multiple sheets .......................................................................................... 558 Product pulls from incorrect tray ...................................................................................... 558 Product feeds incorrect page size ................................................................................... 558 Paper does not feed automatically ..................................................................................
559 Paper does not feed from Tray 2, 3, 4, or 5 ..................................................................... 559 Transparencies or glossy paper will not feed .................................................................. 560 Envelopes jam or will not feed in the product .................................................................. 561 Output is curled or wrinkled ............................................................................................. 561 Product will not duplex or duplexes incorrectly ................................................................
562 Solve image quality problems .......................................................................................................... 563 Example print quality problems ........................................................................................ 563 Repetitive defects ruler .................................................................................................... 563 Overhead transparency defects ....................................................................................... 565 Print quality problems associated with the environment ..................................................
565 Print quality problems associated with jams .................................................................... 565 Optimize and improve image quality ................................................................................ 565 Use supported paper ....................................................................................... 566 Calibrate the product ....................................................................................... 566 Specify the correct paper type ........................................................................ 566 Clean the fuser ................................................................................................
567 Respond to control-panel error messages ...................................................... 568 Clean the registration second transfer assembly ........................... 568 Use manual print modes ................................................................................. 570 Print-quality-troubleshooting pages ................................................................. 571 Image-quality issues ........................................................................................................ 574 Interface troubleshooting ..................................................................................................................
579 Communication checks .................................................................................................... 579 EIO troubleshooting ......................................................................................................... 579 Engine diagnostics ........................................................................................................................... 580 LED diagnostics ............................................................................................................... 580 Understand lights on the formatter ..................................................................
580 HP Jetdirect LEDs .......................................................................... 580 Heartbeat LED ................................................................................ 581 Understand lights on the SCB ......................................................................... 581 Understand lights on the copy-process board (CPB) ...................................... 583 ENWW xiii