HP — HP Scanjet N9120 Service Manual

NVRAM data file examples ............................................................... 82 NVRAM content adjustment ............................................................. 83 Download factory NVRAM data ........................................................ 84 Backup current NVRAM data ........................................................... 87 Repair NVRAM data ......................................................................... 89 Adjust NVRAM counter items ........................................................... 94 Align the ADF ....................................................................................................

96 Create the factory calibration data for ADF-A ................................................... 99 ADF motor fan ................................................................................................................. 101 ADF carriage fan .............................................................................................................. 102 ADF input-tray lift-motor assembly .................................................................................. 103 ADF exit-motor assembly ................................................................................................

104 ADF feed-motor assembly ............................................................................................... 108 Reinstall the ADF feed-motor drive belt .......................................................... 110 Reinstall the ADF feed-motor assembly .......................................................... 111 ADF pick-motor assembly ................................................................................................ 114 Reinstall the ADF pick-motor assembly .......................................................... 116 Upper multi-pick sensor PCA ...........................................................................................

119 Lower multi-pick sensor PCA ........................................................................................... 121 ADF controller PCA ......................................................................................................... 123 Imprinter PCA .................................................................................................................. 125 Reinstall the imprinter PCA ............................................................................. 126 Input-tray sensor ..............................................................................................................

129 Flatbed scan position sensor ........................................................................................... 130 Reinstall the flatbed scan position sensor ....................................................... 131 Exit 1 sensor .................................................................................................................... 133 Exit 2 sensor .................................................................................................................... 134 Pick-up roller sensor ........................................................................................................

135 Elevator arm sensor ......................................................................................................... 137 Background solenoid sensor ........................................................................................... 138 Paper-present sensor ...................................................................................................... 139 Registration sensor .......................................................................................................... 140 Jam door 1 sensor ...........................................................................................................

141 Jam door 2 sensor ........................................................................................................... 142 Jam door 3 sensor ........................................................................................................... 143 Imprinter paper-present sensor ....................................................................................... 144 ADF scan position sensor ................................................................................................ 146 ADF bottom corner outer paper path guide .....................................................................

147 ADF bottom corner inner paper path guide ..................................................................... 149 ADF cal-strip assembly .................................................................................................... 150 Reinstall the cal-strip assembly ....................................................................... 152 ADF exit inner paper path guide ...................................................................................... 156 ADF top corner inner paper path guide ...........................................................................

159 Lower multi-pick sensor cover ......................................................................................... 160 ENWW v