Sensors and switches ................................................................................. 160
Cross section diagrams .............................................................................. 165
Location of connectors ................................................................................................. 169
DC controller PCA ....................................................................................... 169
Intermediate paper transport unit (ITPU) driver PCA (M680) ................... 172
Accessories controller PCA ......................................................................... 173
3-bin stapling mailbox accessory (M680) ................................................. 174
Formatter connections ................................................................................................. 176
Location of major components .................................................................................... 178
Base product .............................................................................................. 178
1x500-sheet paper feeder ......................................................................... 181
1x500-sheet paper deck ............................................................................ 182
2,500-sheet high-capacity feeder (HCI) .................................................... 183
3-bin stapling mailbox accessory (M680) ................................................. 184
General timing chart ..................................................................................................... 185
Circuit diagrams ............................................................................................................ 186
Internal print-quality test pages .................................................................................................... 191
Print quality troubleshooting pages ............................................................................ 191
Print quality assessment page ..................................................................................... 194
Cleaning page ............................................................................................................... 196
Enable and configure auto cleaning .......................................................... 196
Print a configuration page ............................................................................................ 197
Configuration page ..................................................................................... 197
HP embedded Jetdirect page ..................................................................... 200
Finding important information on the configuration pages ..................... 202
Color band test ............................................................................................................. 202
Print quality troubleshooting tools ................................................................................................ 203
Print quality troubleshooting tools: repetitive defects ruler ...................................... 203
Calibrate the product to align the colors ..................................................................... 204
Control-panel menus ...................................................................................................................... 205
Administration menu .................................................................................................... 205
Reports menu ............................................................................................. 205
General Settings menu ............................................................................... 208
Copy Settings menu (M680 only) ............................................................... 222
Scan/Digital Send Settings menu (M680) .................................................. 229
Fax Settings menu (M680) ......................................................................... 240
General Print Settings menu ...................................................................... 253
Default Print Options menu ....................................................................... 256
Display Settings menu ............................................................................... 258
Manage Supplies menu .............................................................................. 260
Manage Trays menu ................................................................................... 266
ENWW ix
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