34Error MessagesError MessagesSome of the more commonerror messages appear below.For a complete list of errormessages, see “Error DisplayMessages” under ProblemSolving in the on-line C9000Series Desktop User’s Guide.XXX TONER LOWMeaningAppears on the second line ofthe display to indicate thatcolor XXX toner cartridge isgetting low.What to DoBe sure you have areplacement toner cartridge onhand.INSTALL NEW TONERnnn: XXX TONER EMPTYMeaningThe toner cartridge indicated(XXX) has run out of toner.What to DoReplace the toner cartridge.See page 31.CHANGE XXX IMAGE DRUMMeaningAppears on the second line ofthe display to indicate thatcolor XXX (e.g., BLACK)image drum needs to bereplaced.What to DoReplace the XXX image drum.(See the instructions suppliedwith the new image drum.)INSTALL ADDITL MEMORY420: MEMORY OVERFLOWMeaningThe amount of data in the filebeing printed has exceeded theprinter’s memory.What to Do• Reduce the size of the file.• Install additional memory(see “Accessories” in theon-line C9000 SeriesDesktop User’s Guide).