- 6 -ContentsManual Configuration ........................................................................... 2Reading the Manual ............................................................................. 3Symbols .................................................................................................................. 3Keys, Buttons, and Symbols.................................................................................... 3Illustrations............................................................................................................ 4Screens................................................................................................................... 4Inscriptions ............................................................................................................ 51 Troubleshooting................................................................... 9Troubleshooting solutions procedure ................................................. 10Paper jams ........................................................................................ 11Checking messages (if a paper jam occurs) .......................................................... 11Removing jammed paper ...................................................................................... 14If paper messages are displayed ....................................................... 36If replace consumables messages are displayed ............................... 38If other messages are displayed ....................................................... 40Printing Troubles ............................................................................... 45Unable to print ..................................................................................................... 45Printer driver malfunctions ................................................................................... 49Print quality is poor .............................................................................................. 52Paper feed is poor ................................................................................................ 57When image disturbance occurs ........................................................................... 58Adjusting the print result ..................................................................................... 582 Maintenance ...................................................................... 59Replacing consumables and maintenance unit ................................... 60Consumables and maintenance unit service life ................................................... 60When the replacement period is approaching ....................................................... 62Replacing toner cartridges.................................................................................... 63Replacing Image Drums ....................................................................................... 66Replacing belt units and transfer roller units ........................................................ 69Replacing fuser units ............................................................................................ 75Replacing waste toner boxes ................................................................................ 77Replacing paper feed rollers ................................................................................. 79Device Maintenance ........................................................................... 87Cleaning device surfaces ...................................................................................... 87Cleaning LED heads .............................................................................................. 87Cleaning feed rollers............................................................................................. 93