HP Color LaserJet CM4730 MFP - Page 16

Understand accessory lights for the 3-bin mailbox and stapler/stacker ............................................ 550
Understand lights on the formatter .................................................................................................... 551
HP Jetdirect LEDs ............................................................................................................. 551
Heartbeat LED .................................................................................................................. 551
Replacement parts configuration ....................................................................................................... 552
Formatter and DC controller ............................................................................................. 552
Formatter (new or previously installed in another MFP) ................................................... 552
DC controller (new or previously installed in another MFP) ............................................. 552
Paper path troubleshooting ............................................................................................................... 554
Jam locations .................................................................................................................... 554
Jam recovery .................................................................................................................... 555
Clearing jams in the right covers ...................................................................................... 556
Jam in Tray 1 .................................................................................................................... 561
Jam in Tray 2, 3, or 4 ........................................................................................................ 561
Jam in the stapler/stacker ................................................................................................. 563
Staple jams ....................................................................................................................... 564
Jam in the 3-bin mailbox ................................................................................................... 566
Other jams in the output accessory bridge ....................................................................... 567
Jam in the ADF ................................................................................................................. 569
Solving repeated jams ...................................................................................................... 571
Persistent jams ................................................................................................................. 572
Basic troubleshooting for jams ......................................................................... 572
Data collection .................................................................................................. 572
General paper path troubleshooting ................................................................ 572
Paper path checklist ......................................................................................... 573
Jams in Tray 1 .................................................................................................. 573
Jams in tray 2 ................................................................................................... 574
Jams in Tray 3 .................................................................................................. 575
Jams in Tray 4 .................................................................................................. 575
Jams in the paper path ..................................................................................... 576
Jams in the right upper cover ........................................................................... 577
Jams in the duplex path ................................................................................... 578
Jams in the ADF ...............................................................................................................
578
Jams in the IPTU .............................................................................................................. 579
Jams in the stapler/stacker ............................................................................................... 579
Jams in the 3-bin mailbox ................................................................................................. 580
Using the paper path test .................................................................................................. 581
Using the scanner tests .................................................................................................... 581
Correct print quality and copy quality problems ................................................................................ 582
Print quality problems associated with media .................................................................. 582
Color printing problems ..................................................................................................... 582
Printout color error ........................................................................................... 582
Incorrect shade ................................................................................................ 583
Missing color .................................................................................................... 583
Cartridge error .................................................................................................. 583
Color match error ............................................................................................. 583
Overhead transparency defects ........................................................................................ 584
Print quality problems associated with the environment .................................................. 584
Print quality problems associated with jams ..................................................................... 584
Print quality troubleshooting pages .................................................................................. 585
xiv ENWW