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 Troubleshooting tools ............................................................................................................ 116 Power-on checks ................................................................................................... 115 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