128 OKIFAX 5250|When to Replace the Image Drum CartridgeYou need a new image drum if the faxes you receive are lightor have vertical streaks in them and you are not out of toner,or if your fax machine displays a CHANGE DRUM message.Contact your Authorized OKIFAX Dealer to order one.! You must replace the toner cartridge when you replacethe image drum.The life of an image drum depends on a number of factors,including temperature and humidity, the type of paper youuse, and the number of pages per job.Replacing the Image Drum Cartridge1 Lift the document table into an upright position.2 Push in the cover release buttons on the side of the copystacker until you hear a click. Lift the copy stacker.3 Remove the old image drum unit (with its toner cartridge),wrap it in the packaging materials from your new imagedrum unit, and discard it.