Remove the imaging (developing) high-voltage power supply ....... 152 First transfer high-voltage power supply ......................................................... 153 Remove the first transfer high-voltage power supply .................... 153 Second transfer high-voltage power supply .................................................... 155 Remove the second transfer high-voltage power supply ................ 155 Driver PCA ...................................................................................................... 157 Remove the driver PCA ..................................................................
157 Power switch PCA ........................................................................................... 159 Remove the power switch PCA ...................................................... 159 Environmental sensor ..................................................................................... 160 Remove the environmental sensor ................................................. 160 Optional paper feeder assembly (Tray 3) ........................................................................ 161 Tray 3 rear cover .............................................................................................
161 Tray 3 left cover .............................................................................................. 161 Tray 3 right-front cover .................................................................................... 163 Tray 3 front-upper cover .................................................................................. 164 Tray 3 right door .............................................................................................. 164 Tray 3 right-lower cover .................................................................................. 166 Tray 3 pickup assembly ..................................................................................
167 Tray 3 lifter drive assembly ............................................................................. 168 Tray 3 pickup motor ........................................................................................ 169 Tray 3 driver PCA ............................................................................................ 170 3 Solve problems Solve problems checklist .................................................................................................................. 172 Menu map ........................................................................................................................................
173 Troubleshooting process .................................................................................................................. 174 Pretroubleshooting checklist ........................................................................................... 174 Power-on checks ............................................................................................................. 176 Tools for troubleshooting .................................................................................................................. 177 Diagrams .........................................................................................................................
177 Block diagrams ................................................................................................ 177 Plug/jack locations .......................................................................................... 179 Location of connectors .................................................................................... 180 DC controller connections .............................................................. 180 Product connections ....................................................................... 182 Locations of major components ......................................................................
189 General timing charts ...................................................................................... 196 General circuit diagram ................................................................................... 197 HP ToolboxFX ................................................................................................................. 200 Open HP ToolboxFX ....................................................................................... 200 Status .............................................................................................................. 201 Event log .........................................................................................
201 ENWW vii