General timing chart .............................................................................................................58 Printer calibration .................................................................................................................59 5 Removal and replacement Overview................................................................................................................................................62 Service approach...................................................................................................................................63 Pre-service procedures.........................................................................................................63 Removal and replacement procedures.................................................................................................64 Print cartridge replacement...................................................................................................64 ETB removal and replacement.............................................................................................66 Fuser removal and replacement...........................................................................................74 Formatter removal and replacement....................................................................................82 DC controller removal and replacement...............................................................................86 Separation pad removal and replacement............................................................................88 Paper pickup roller removal and replacement......................................................................89 Control panel removal and replacement...............................................................................91 6 Troubleshooting Troubleshooting process.......................................................................................................................98 Troubleshooting checklist.....................................................................................................98 Clearing jams ........................................................................................................................................99 Paper path............................................................................................................................99 Common causes of paper jams..........................................................................................100 Where to look for jams........................................................................................................101 Jams inside the printer........................................................................................................102 Input jams...........................................................................................................................103 Tray 1.................................................................................................................103 Tray 2.................................................................................................................104 Output jams.........................................................................................................................104 Jams in the top bin.............................................................................................104 Pickup delay jam................................................................................................105 Pickup stationary jam.........................................................................................105 Delivery delay jam..............................................................................................105 Wrapping jam......................................................................................................................105 Delivery stationary jam.......................................................................................................105 Start-up residual paper jam................................................................................................105 Door open jam....................................................................................................................106 Print problems......................................................................................................................................107 Getting information..............................................................................................................107 Control panel messages....................................................................................107 Alert and warning messages.............................................................107 Critical error messages.....................................................................108 Supplies messages...........................................................................109 Status messages...............................................................................112 Status log only messages.................................................................112 Reports menu.....................................................................................................113 Configuration page.............................................................................................114 Supplies Status page.........................................................................................116 Status log...........................................................................................................116 Service menu settings........................................................................................118 ENWW v