HP — HP Color LaserJet Enterprise M750 Service Manual (EN)

Event log messages ........................................................................................................................ 488 Wrong cartridge in slot ................................................................. 487 Print or view an event log ............................................................................................. 489 Clear an event log ......................................................................................................... 489 Clear jams ..........................................................................................................................................................

490 Common causes of jams ................................................................................................................. 490 Jam locations .................................................................................................................................. 491 Clear jams in the upper-right door ................................................................................................. 496 Clear jams in the lower-right door ..................................................................................................

498 Clear jams in Tray 1 ......................................................................................................................... 499 Clear jams from Tray 2, Tray 3, or an optional tray ....................................................................... 501 Clear jams in the output bin area .................................................................................................... 502 Jam causes and solutions ............................................................................................................... 503 Jams in the output bin ..................................................................................................

503 Jams in the fuser and transfer area ............................................................................. 503 Jams in the duplex area (duplex models only) ............................................................ 504 Jams in Tray 1, Tray 2 and internal paper path ........................................................... 505 Jams in Tray 3, 4, 5, and 6 ............................................................................................ 507 Change jam recovery .......................................................................................................................

509 Solve paper-handling problems ....................................................................................................................... 510 Product feeds multiple sheets ........................................................................................................ 510 Product feeds incorrect page size .................................................................................................. 510 Product pulls from incorrect tray ...................................................................................................

510 Paper does not feed automatically ................................................................................................ 511 Paper does not feed from Tray 2, 3, 4, 5, or 6 ................................................................................ 511 Output is curled or wrinkled ........................................................................................................... 512 Product will not duplex or duplexes incorrectly ............................................................................ 512 Use manual print modes ...................................................................................................................................

514 Solve image-quality problems .......................................................................................................................... 517 Print quality examples .................................................................................................................... 517 Clean the product .............................................................................................................................................. 523 Clean the paper path .......................................................................................................................

523 Solve performance problems ............................................................................................................................ 524 Solve connectivity problems ............................................................................................................................. 525 Solve direct-connect problems ...................................................................................................... 525 Service mode functions .....................................................................................................................................

526 Solve network problems ................................................................................................................. 525 Service menu ................................................................................................................................... 526 Product resets ................................................................................................................................. 527 Restore factory-set defaults ........................................................................................

527 Preboot menu options ....................................................................................................................................... 528 xx ENWW