Service approach...................................................................................................................................61 Pre-service procedures.........................................................................................................61 Removal and replacement procedures.................................................................................................62 Print cartridge replacement...................................................................................................62 ETB removal and replacement.............................................................................................64 Fuser removal and replacement...........................................................................................73 Formatter removal and replacement....................................................................................81 DC controller removal and replacement...............................................................................85 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 ......................................................................................................................................100 Paper path..........................................................................................................................100 Common causes of paper jams..........................................................................................101 Where to look for jams........................................................................................................102 Jams inside the printer........................................................................................................103 Input jams...........................................................................................................................104 Tray 1.................................................................................................................104 Tray 2.................................................................................................................105 Output jams.........................................................................................................................105 Jams in the top bin.............................................................................................105 Pickup delay jam................................................................................................106 Pickup stationary jam.........................................................................................106 Delivery delay jam..............................................................................................106 Wrapping jam......................................................................................................................106 Delivery stationary jam.......................................................................................................106 Start-up residual paper jam................................................................................................106 Door open jam....................................................................................................................107 Print problems......................................................................................................................................108 Getting information..............................................................................................................108 Control panel messages....................................................................................108 Alert and warning messages.............................................................108 Critical error messages.....................................................................109 Supplies messages...........................................................................110 Status messages...............................................................................113 Status log only messages.................................................................113 Reports menu.....................................................................................................114 Configuration page.............................................................................................115 Supplies Status page.........................................................................................117 Menu map..........................................................................................................117 Status log...........................................................................................................118 Service menu settings........................................................................................120 Secondary service menu....................................................................................120 Printed image quality problems..........................................................................................121 Improving print quality........................................................................................121 Paper Types menu............................................................................121 ENWW v