Table of contents 1 Theory of operation .......................................................................................................... 1 Flatbed scanner and ADF assembly ............................................................................................ 3 Network electronics assembly .................................................................................................... 4 User interface assembly ............................................................................................................ 6 2 Removal and replacement ................................................................................................
7 Introduction ............................................................................................................................. 8 Removal and replacement strategy ............................................................................................. 9 Electrostatic discharge ............................................................................................................ 10 Required tools ........................................................................................................................ 11 Types of screws .....................................................................................................................
12 Service approach ................................................................................................................... 15 Before performing service ........................................................................................ 15 Backup product data ................................................................................ 15 After performing service ........................................................................................... 15 Restore product data ................................................................................ 16 Save and repair process ...........................................................................
16 Post-service test ....................................................................................................... 16 Quality test .............................................................................................. 17 Customer self repair (CSR) assemblies ...................................................................................... 18 ADF rollers ............................................................................................................. 18 Remove the ADF rollers: ............................................................................ 18 Separation pad ........................................................................................
21 Update the document feeder kit replacement history ..................................... 22 Set the Very Low Settings option from the control panel ................................. 22 Control-panel assembly ............................................................................................ 24 Reinstall the control-panel assembly ............................................................ 25 Hard disk drive ....................................................................................................... 26 Remove the hard disk drive .......................................................................
26 Reinstall the hard disk drive ........................................................ 29 Reload the firmware .................................................................. 29 ENWW iii