Remove the USB PCA
................................................................
96
Duplex-reverse drive assembly
...................................................................
97
Remove the duplex-reverse drive assembly
....................................
97
Fuser
....................................................................................................
100
Remove the fuser
.....................................................................
101
Reinstall the fuser
....................................................................
106
Paper-delivery assembly
..........................................................................
107
Remove the paper-delivery assembly
..........................................
107
Tray cassettes and optional Tray 3 assembly
............................................................
110
2
Solve problems
...............................................................................................................................
111
Solve problems checklist
.......................................................................................................
112
Menu map
..........................................................................................................................
113
Troubleshooting process
........................................................................................................
114
Pretroubleshooting checklist
....................................................................................
114
Power-on checks
...................................................................................................
115
Troubleshooting tools
............................................................................................................
116
Component diagnostics
..........................................................................................
116
LED diagnostics
......................................................................................
116
Network LEDs (network models only)
.........................................
116
Control panel LEDs
..................................................................
116
Memory card LED (memory-card models only)
.............................
116
Component tests
...................................................................................................
117
Control-panel tests
..................................................................................
117
Diagrams
.............................................................................................................
118
Plug/jack locations
.................................................................................
118
Location of connectors
............................................................................
119
DC controller PCA
...................................................................
119
Location of major components
.................................................................
121
Major components
..................................................................
121
Motors and fans
......................................................................
123
Rollers
....................................................................................
124
PCAs
.....................................................................................
125
Optional 250-sheet cassette
.....................................................
126
General timing diagram
..........................................................................
127
General circuit diagram
..........................................................................
128
CPU/ASIC diagrams
..............................................................................
129
HVT/Toner EMP diagram
........................................................................
131
Driver PCA diagram
...............................................................................
132
Duplexer PCA diagram
...........................................................................
133
FSR diagram
..........................................................................................
134
ENWW
vii