Pickup/feed operation ...................................................................................................... 136 HCI pickup mechanism .................................................................................................... 138 Lift-up operation ............................................................................................................... 139 Multiple-feed prevention mechanism ............................................................................... 141 HCI jam detection ............................................................................................................
143 Scanner component ......................................................................................................................... 144 ADF .................................................................................................................................................. 146 Input tray .......................................................................................................................... 146 ADF simplex printing operation sequence ....................................................................... 146 ADF duplex printing operation sequence .........................................................................
147 Multifeed operation .......................................................................................................... 148 End of a scan job operation ............................................................................................. 149 Paper pick and separation operation ............................................................................... 149 Deskew ............................................................................................................................ 150 Stapler/stacker component ...............................................................................................................
151 Overview .......................................................................................................................... 151 Basic operation ................................................................................................................ 152 Control system ................................................................................................................. 153 Feed/stack system ........................................................................................................... 156 Staple system ..................................................................................................................
171 5 Removal and replacement ......................................................................................................................... 173 Removal and replacement strategy .................................................................................................. 174 Introduction ...................................................................................................................... 174 Required tools .................................................................................................................. 175 Types of screws ...............................................................................................................
175 Service approach ............................................................................................................. 176 Before performing service ................................................................................................ 176 After performing service ................................................................................................... 176 Parts removal order ......................................................................................................... 177 User-replaceable parts .....................................................................................................................
178 Print cartridge .................................................................................................................. 179 ADF separation pad and pickup and feed roller assemblies (removal and replacement) .................................................................................................................... 180 Transfer roller .................................................................................................................. 183 Tray 1 pickup roller (multipurpose paper pickup roller) .................................................... 184 Tray 1 separation pad assembly (multipurpose pad assembly) ......................................
185 Tray 2 and Tray 3 pickup rollers (paper pickup roller assembly) ..................................... 187 Tray 2 and Tray 3 separation pad assembly (separation block assembly) ...................... 189 Tray 4, Tray 5, and Tray 6 pickup and feed rollers (paper feed roller assembly) ............ 190 Fuser ................................................................................................................................ 191 Duplexer .......................................................................................................................... 194 Formatter cover and cage ................................................................................................
195 Hard drive ........................................................................................................................ 197 ENWW vii