Image-formation process ................................................................................................... 95 Latent-image formation stage ............................................................................................ 96 Developing stage ............................................................................................................... 96 Transfer stage .................................................................................................................... 98 Fusing stage ......................................................................................................................
99 ITB cleaning stage ........................................................................................................... 100 Drum cleaning stage ........................................................................................................ 101 Pickup-and-feed system ................................................................................................................... 102 Jam detection .................................................................................................................. 104 Pad transfer .....................................................................................................................
104 Multiple-feed prevention .................................................................................................. 104 Scanner and ADF functions and operation ...................................................................................... 106 Scanner functions ........................................................................................................... 106 Scanner operation ........................................................................................................... 107 ADF operation ..................................................................................................................
107 ADF paper path and ADF sensors ................................................................................... 108 ADF jam detection ........................................................................................................... 109 Memory card system (fax/memory-card models only) ..................................................................... 110 Fax functions and operation (fax/memory-card models only) .......................................................... 111 Computer and network security features .........................................................................
111 PSTN operation ............................................................................................................... 111 Receive faxes when you hear fax tones .......................................................................... 111 Distinctive ring function .................................................................................................... 112 Fax by using Voice over IP services ................................................................................ 112 The fax subsystem ...........................................................................................................
113 Fax card in the fax subsystem ......................................................................................... 113 Fax page storage in flash memory .................................................................................. 115 6 Removal and replacement Removal and replacement strategy ................................................................................................. 118 General cautions during removal and replacement ......................................................... 118 Electrostatic discharge .....................................................................................................
118 Required tools ................................................................................................................. 119 Types of screws ............................................................................................................... 119 Service approach ............................................................................................................. 120 Print cartridges ................................................................................................................................. 122 Tray cassettes and optional Tray 3 assembly ..................................................................................
123 Control-panel bezel ......................................................................................................................... 124 Control panel .................................................................................................................................... 125 Reinstall the control panel ............................................................................................... 126 Paper-feed rollers and pads .............................................................................................................
127 Transfer roller .................................................................................................................. 127 Pickup roller (Tray 2 and Tray 3) ..................................................................................... 128 ENWW v