Table of contents 1 Removal and replacement ................................................................................................ 1 Removal and replacement strategy ............................................................................................. 2 Introduction .............................................................................................................. 2 Removal and replacement strategy .............................................................................. 2 Electrostatic discharge ...............................................................................................
3 Required tools ........................................................................................................... 3 Types of screws ........................................................................................................ 4 Service approach ..................................................................................................................... 5 Before performing service .......................................................................................... 5 After performing service .............................................................................................
5 Post-service tests ........................................................................................................ 6 Test 1 (print-quality test) ............................................................................... 6 Test 2 (copy-quality test) .............................................................................. 6 Test 3 (fax-quality test; fax models only) ........................................................ 6 Parts removal order ................................................................................................... 7 Removal and replacement procedures ........................................................................................
9 Rollers and pads ....................................................................................................... 9 Transfer roller ............................................................................................ 9 Pickup roller (Tray 2 and Tray 3) ................................................................ 10 Separation roller (Trays 2 or 3) .................................................................. 13 Reinstall the separation roller ...................................................... 15 Document feeder pickup roller assembly .....................................................
16 Main assemblies ..................................................................................................... 20 Pickup roller and separation pad (Tray 1) ................................................... 17 Print-cartridge drawer ............................................................................... 20 DIMM cover ............................................................................................ 22 Right cover .............................................................................................. 23 Document feeder input tray ........................................................................
25 Scanner assembly .................................................................................... 26 Right-front cover and power button ............................................................. 28 Rear-upper cover (duplex product) .............................................................. 30 Paper-feed guide assembly ........................................................................ 31 ENWW v