DC controller PCA connectors ........................................................ 266 Product base connectors ................................................................ 268 500-sheet paper tray connectors .................................................... 268 1,500-sheet paper tray connectors ................................................. 269 Duplexer connectors ....................................................................... 270 Envelope feeder connectors ........................................................... 270 General timing chart ........................................................................................
271 Circuit diagrams .............................................................................................. 271 Print quality troubleshooting tools .................................................................................... 278 Repetitive image defect ruler .......................................................................... 278 Cleaning page ................................................................................................. 278 Control-panel messages ..................................................................................................................
280 Event log messages ......................................................................................................................... 300 Print an event log ............................................................................................................. 300 Show an event log ........................................................................................................... 300 Sample event log ............................................................................................................. 301 Paper-handling problems .................................................................................................................
302 Jams ................................................................................................................................ 302 Common causes of jams ................................................................................. 302 Jam locations .................................................................................................. 304 Clear jams ...................................................................................................... 305 Clear jams from the top-cover and print-cartridge areas ................ 305 Clear jams from the optional envelope feeder ................................
307 Clear jams from the trays ............................................................... 309 Clear jams from the optional duplexer ........................................... 312 Clear jams from the fuser area ....................................................... 313 Clear jams from the output areas ................................................... 318 Jam recovery ................................................................................................... 323 Product feeds incorrect page size ...................................................................................
324 Output is curled or wrinkled ............................................................................................. 325 Product will not duplex or duplexes incorrectly ................................................................ 326 Solve image quality problems .......................................................................................................... 327 Image defects .................................................................................................................. 327 Solve performance problems ...........................................................................................................
332 Solve connectivity problems ............................................................................................................. 333 Solve direct-connect problems ........................................................................................ 333 Solve network connectivity problems ............................................................................... 333 Solve network printing problems ..................................................................... 333 Ping test ..........................................................................................................
334 Service mode functions .................................................................................................................... 335 Service menu ................................................................................................................... 335 Product resets .................................................................................................................. 336 Restore factory-set defaults ............................................................................ 336 Hard disk initialization ..................................................................................... 336 x ENWW