Reinstall the paper-size switch PCA ............................................................... 283 Tray 4 power supply ........................................................................................................ 283 Tray 4 pickup assembly ................................................................................................... 284 Tray 4 paper-connecting unit ........................................................................................... 286 7 Solve problems Troubleshooting process ..................................................................................................................
288 Preliminary operating checks ........................................................................................... 288 Installation environment .................................................................................. 288 Media checks .................................................................................................. 289 Scanner and ADF checks ............................................................................... 289 General troubleshooting information ................................................................................................
290 Abnormal noises are evident, such as grinding or chattering when the main motor is turned on .......................................................................................................................... 290 Media does not feed from Tray X when printing from a software program; the paper- path test is successful ...................................................................................................... 290 Media does not print from Tray 4 ..................................................................................... 290 The product stops printing and hangs on certain jobs .....................................................
291 Envelopes are wrinkling ................................................................................................... 291 Fusing is poor .................................................................................................................. 291 The product feeds from an incorrect tray when different media is selected for the first page of the job ................................................................................................................. 291 Power-on checks ..............................................................................................................................
293 Malfunction troubleshooting ............................................................................................................. 294 Troubleshooting by using control-panel messages .......................................................................... 295 Event log page ................................................................................................................ 295 Print the event log ........................................................................................... 295 Interpret the event log .....................................................................................
295 Sample event log ............................................................................................ 296 View the event log .......................................................................................... 296 Control-panel error messages .......................................................................................................... 297 User- and service-level diagnostics .................................................................................................. 322 Copy processor LEDs ......................................................................................................
322 Troubleshooting menu ..................................................................................................... 323 Paper-path test ................................................................................................................ 324 Print a paper-path test ..................................................................................... 324 Service test ...................................................................................................................... 324 Perform a service test .....................................................................................
324 Service-level diagnostics .................................................................................................................. 326 Engine test ....................................................................................................................... 326 Service menu ................................................................................................................... 326 Other diagnostics ............................................................................................................................. 330 Boot-up key sequences ................................................................................................... 330 ENWW xi