98 OKIOFFICE 87 User’s GuideReplacing the Image Drum Unit (OKI P/N 40709901)If the faxes you receive are light or have vertical streaks in them and youare not out of toner, or if your MFP machine displays a CHANGE DRUMmessage, your MFP machine needs a new image drum unit. Contact yourdealer to order one.The life of an image drum depends on a number of factors, includingtemperature and humidity, the type of paper you use, and the number ofpages per job. The image drum cartridge should last about 10,000 pagesfor continuous printing, up to 8,000 pages at 3 pages per job, and about4,500 pages at 1 page per job.Warning: Never expose the image drum unit to light for more than5 minutes. Never expose the image drum unit to directsunlight. Always hold the image drum unit by the ends.Never touch the surface of the green drum inside theimage drum unit.CAUTION: If you open the top cover, you will see a label that reads:(CAUTION-HOT).This portion is extremely hot and must not betouched under any circumstances.1 Lift the MFP machine’s top cover and swing it out of the way.
