DC controller PCA ........................................................................................................... 188 Major components ........................................................................................................... 190 Solenoids, clutches, and sensors .................................................................................... 191 Rollers .............................................................................................................................. 192 Motors and fans ...............................................................................................................
193 PCAs ................................................................................................................................ 194 Timing diagram ................................................................................................................ 195 Circuit diagram ................................................................................................................. 195 Control-panel messages .................................................................................................................. 197 Pages and reports ............................................................................................................................
201 Diagnostic page ............................................................................................................... 201 Configuration page .......................................................................................................... 201 Supplies status page ....................................................................................................... 201 Event log .......................................................................................................................... 202 Paper-handling problems .................................................................................................................
204 Clear jams ........................................................................................................................ 204 Common causes of jams ................................................................................. 204 Jam locations .................................................................................................. 205 Change Jam Recovery setting ........................................................................ 205 Clear jams in Tray 1 ........................................................................................ 206 Clear jams in Tray 2 .......................................................................................
208 Clear jams in Tray 3 ....................................................................................... 209 Clear jams in fuser area .................................................................................. 210 Clear jams in output bin .................................................................................. 211 Clear jams in duplexer (duplexing models only) ............................................. 212 Image defects ...................................................................................................................................
214 General print quality issues ............................................................................................. 214 Solve issues with color documents .................................................................................. 218 Solve connectivity problems ............................................................................................................. 220 Solve direct-connection problems .................................................................................... 220 Solve network problems ..................................................................................................
220 Service mode functions .................................................................................................................... 222 Service menu ................................................................................................................... 222 Service menu settings ..................................................................................... 222 Restore the factory-set defaults ...................................................................... 222 Secondary service menu .................................................................................................
222 Open the secondary service menu ................................................................. 222 Secondary service menu structure .................................................................. 222 Engine resets ................................................................................................................... 224 Engine test page ............................................................................................. 224 Cold reset ........................................................................................................ 224 NVRAM initialization ........................................................................................
225 Performance problems ..................................................................................................................... 226 Print speeds ..................................................................................................................... 227 viii ENWW