This printer indicates when the toner cartridge level is low. The actual toner cartridge life remaining can vary. The toner cartridge does not need to be replaced at this time. Consider having a replacement cartridge available to install when print quality is no longer acceptable.
Continue printing with the current cartridge until redistributing the toner no longer yields acceptable print quality. To redistribute the toner, remove the toner cartridge from the printer and gently rock the cartridge back and forth about its horizontal axis. For graphical representation, see cartridge replacement instructions. Reinsert the toner cartridge into the printer and close the cover.