Automatic document feed system ............................................................................... 65
Sensors in the ADF ................................................................................... 65
ADF paper path ....................................................................................... 66
Stapler (stapling models only) .................................................................... 67
2 Solve problems ............................................................................................................... 69
Solve problems checklist ......................................................................................................... 70
Menu map ............................................................................................................................ 72
Preboot menu options ............................................................................................................. 73
Current settings pages ............................................................................................................ 80
Troubleshooting process .......................................................................................................... 81
Determine the problem source ................................................................................... 81
Troubleshooting flowchart ......................................................................... 81
Power subsystem ..................................................................................................... 82
Power-on checks ...................................................................................... 82
Power-on troubleshooting overview .............................................. 82
Control-panel checks ............................................................................................... 83
Scanning subsystem ................................................................................................ 85
Tools for troubleshooting ......................................................................................................... 86
Individual component diagnostics .............................................................................. 86
LED diagnostics ........................................................................................ 86
Understand lights on the formatter ............................................... 86
Engine diagnostics ................................................................................... 91
Defeating interlocks ................................................................... 91
Disable cartridge check ............................................................. 93
Engine test button ...................................................................... 94
Paper path test ......................................................................................... 95
Paper path sensors test ............................................................................. 95
Manual sensor test ................................................................................... 97
SW1 Front Door ....................................................................... 98
SR8 Registration sensor ............................................................ 100
SR14 Fuser Loop 1 and SR15 Fuser Loop 2 sensors ..................... 101
SR7 Fuser Pressure Release sensor ............................................. 102
SR5 Fuser Output sensor .......................................................... 103
SR22 Duplexer Refeed sensor ................................................... 104
SR6 Output Bin Full sensor ........................................................ 105
SR11 Developer Alienation sensor ............................................. 106
SR17 ITB Alienation sensor ....................................................... 107
Tray/bin manual sensor test ..................................................... 109
Print/stop test ........................................................................................ 117
Component tests ..................................................................................... 118
ENWW vii
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