Brother International MFC 8870DW Users Manual - English - Page 149
Replacing the drum unit (DR-520 - toner life end
UPC - 012502615101
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Troubleshooting and routine maintenance Replacing the drum unit (DR-520) C The machine uses a drum unit to create print images on paper. If the LCD shows Drum Near End, the drum unit is near the end of its life and it is time to buy a new one. Even if the LCD shows Drum Near End, you may be able to continue printing without having to replace the drum unit for a while. However, if there is a noticeable deterioration in the output print quality (even before Drum Near End appears), then the drum unit should be replaced. You should clean the machine when you replace the drum unit. (See Cleaning the laser scanner window on page 128.) CAUTION While removing the drum unit, handle it carefully because it may contain toner. If toner scatters on your hands or clothes, wipe or wash it off with cold water at once. HOT SURFACE After you have just used the machine, some internal parts of the machine will be extremely hot. When you open the front or back cover of the machine, DO NOT touch the shaded parts shown in the illustration. a Open the front cover and take out the drum unit and toner cartridge assembly. Note The drum unit is a consumable item, and it is necessary to replace it periodically. There are many factors that determine the actual drum life, such as temperature, humidity, type of paper and how much toner you use for the number of pages per print job. The estimated drum life is approximately 25,000 pages. The actual number of pages your drum will print may be significantly less than these estimates. Because we have no control over the many factors that determine the actual drum life, we cannot guarantee a minimum number of pages that will be printed by your drum. 135