Laser/scanner .................................................................................................................................... 44 Fuser .................................................................................................................................................. 46 Fuser motor ....................................................................................................................................... 46 Right fan ............................................................................................................................................
47 Left fan .............................................................................................................................................. 49 Registration unit ............................................................................................................................... 52 Paper-feed assembly ........................................................................................................................ 53 Printed circuit assemblies (PCAs) ........................................................................................................................
56 Front USB PCA ................................................................................................................................... 56 DC controller PCA .............................................................................................................................. 57 Formatter and Wi-Fi PCAs ................................................................................................................. 59 High-voltage power supply ...............................................................................................................
61 Low-voltage power supply PCA ........................................................................................................ 69 Duplexer ............................................................................................................................................................... 74 Duplexer ............................................................................................................................................ 74 Duplexer left cover ............................................................................................................................
74 Duplexer right cover .......................................................................................................................... 75 Duplexer top cover ............................................................................................................................ 76 Duplexer rear cover ........................................................................................................................... 77 Duplex drive assembly ......................................................................................................................
78 Duplexer driver PCA .......................................................................................................................... 86 Duplexer fan ...................................................................................................................................... 87 Registration sensor photoreceiver assembly .................................................................................. 90 Registration sensor LED assembly ...................................................................................................
95 500-sheet feeder ............................................................................................................................................... 102 500-sheet feeder front cover ......................................................................................................... 102 500-sheet feeder left cover ............................................................................................................ 103 500-sheet feeder right cover ..........................................................................................................
103 500-sheet feeder cassette cover ................................................................................................... 104 500-sheet feeder paper-pickup unit .............................................................................................. 105 500-sheet feeder lifter drive unit ................................................................................................... 106 500-sheet feeder drive unit ............................................................................................................ 107 500-sheet feeder drive PCA ............................................................................................................
111 500-sheet feeder pickup motor ..................................................................................................... 112 2 Parts and diagrams .................................................................................................................................... 115 Order parts by authorized service providers .................................................................................................... 115 Service kit parts ..............................................................................................................................
115 Whole-unit replacement part numbers .......................................................................................... 117 Supplies and accessories part numbers ......................................................................................... 117 Related documentation and software ............................................................................................ 117 vi ENWW