Reinstall the Tray 4 rollers .............................................................................. 280 Tray 4 registration assembly ............................................................................................ 280 Tray 4 drive motor ............................................................................................................ 281 Tray 4 drive assembly ...................................................................................................... 282 Tray 4 controller board .....................................................................................................
283 Paper-size detection switch PCA .................................................................................... 284 Reinstall the paper-size switch PCA ............................................................... 285 Tray 4 power supply ........................................................................................................ 285 Tray 4 pickup assembly ................................................................................................... 286 Tray 4 paper-connecting unit ...........................................................................................
288 7 Solve problems Troubleshooting process .................................................................................................................. 290 Preliminary operating checks ........................................................................................... 290 Installation environment .................................................................................. 290 Media checks .................................................................................................. 291 Scanner and ADF checks ...............................................................................
291 General troubleshooting information ................................................................................................ 292 Abnormal noises are evident, such as grinding or chattering when the main motor is turned on .......................................................................................................................... 292 Media does not feed from Tray X when printing from a software program; the paper- path test is successful ...................................................................................................... 292 Media does not print from Tray 4 .....................................................................................
292 The product stops printing and hangs on certain jobs ..................................................... 293 Envelopes are wrinkling ................................................................................................... 293 Fusing is poor .................................................................................................................. 293 The product feeds from an incorrect tray when different media is selected for the first page of the job .................................................................................................................
293 Power-on checks .............................................................................................................................. 295 Malfunction troubleshooting ............................................................................................................. 296 Troubleshooting by using control-panel messages .......................................................................... 297 Event log page ................................................................................................................ 297 Print the event log ...........................................................................................
297 Interpret the event log ..................................................................................... 297 Sample event log ............................................................................................ 298 View the event log .......................................................................................... 298 Control-panel error messages .......................................................................................................... 299 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 ENWW xi