Document feeder components ....................................................................................... 91
Document feeder (ADF) top cover ................................................................ 91
ADF core ........................................................................................................ 92
ADF separation pad ...................................................................................... 93
ADF inner tray ............................................................................................... 97
ADF input guides and gear ........................................................................... 97
ADF pre-pickup arm assembly ................................................................... 100
2 Parts and diagrams .................................................................................................................................... 101
Order parts by authorized service providers .................................................................................................... 102
Order replacement parts ................................................................................................................ 102
Related documentation and software ............................................................................................ 102
Supplies part numbers .................................................................................................................... 102
Accessories ...................................................................................................................................... 103
Customer replaceable units (CRU) kit part numbers ...................................................................... 104
Whole-unit replacement part numbers .......................................................................................... 105
How to use the parts lists and diagrams .......................................................................................................... 106
Assembly locations ........................................................................................................................................... 107
Base product (no document feeder or scanner) ............................................................................. 107
Covers, panels, and doors ................................................................................................................................. 108
Internal assemblies ........................................................................................................................................... 110
Scanner and document feeder (ADF) assemblies ............................................................................................. 112
Scanner and lid assembly (M176 model) ....................................................................................... 112
Scanner assemblies (M176 model) ................................................................................................. 114
Scan drive system assembly (M176 and M177 models) ................................................................ 116
Scanner and document feeder main assemblies (M177 model) ................................................... 118
Scanner assembly (M177 model) ................................................................................................... 120
Document feeder assembly (M177 model) .................................................................................... 122
ADF top cover assembly (M177 model) .......................................................................................... 124
Core ADF assembly (M177 model) .................................................................................................. 126
Alphabetical parts list ....................................................................................................................................... 128
Numerical parts list ........................................................................................................................................... 131
Index ........................................................................................................................................................... 135
ENWW vii