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We also strongly recommend that you continue to use only Genuine Brother Brand replacement toner cartridges (TN-540 and TN-570). Using or attempting to use potentially incompatible toner and/or toner cartridges in your MFC may cause damage to the machine itself and/or it may result in unsatisfactory print quality. Our warranty coverage does not apply to any problem that was caused by the use of unauthorized third party toner and toner cartridges. To protect your investment and guarantee your print quality please continue to replace consumed toner cartridges with only Genuine Brother Branded Supplies. 12 -27 TROUBLESHOOTING AND ROUTINE MAINTENANCE 4 Gently rock the toner cartridge from side to side five or six times to distribute the toner evenly inside the cartridge. 4 Gently rock the toner cartridge from side to side five or six times to distribute the toner evenly inside the cartridge. 5 Remove the protective cover. 6 Insert the new toner cartridge in the drum unit until it clicks into place. If you put it in properly, the lock lever will lift automatically. Toner Cartridge Drum Unit TROUBLESHOOTING AND ROUTINE MAINTENANCE 12 -28 7 7 Corona Wire Tab Home Position(Ў) 8 Reinstall the drum unit and toner cartridge assembly and close the front cover. 12 -29 TROUBLESHOOTING AND ROUTINE MAINTENANCE Replacing the drum unit Replacing the drum unit Even if the LCD shows Change Drum Soon, 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 Change Drum Soon appears), then the drum unit should be replaced. You should clean the MFC when you replace the drum unit. (See Cleaning the drum unit on page 12-24.) Caution When removing the drum unit, handle it carefully because it contains toner. If toner scatters and your hands or clothes get dirty, immediately wipe or wash with cold water. 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 up to 20,000 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. WARNING Just after you have used the MFC, some internal parts of the MFC are extremely HOT! So, never touch the shaded parts shown in the illustration. HOT! TROUBLESHOOTING AND ROUTINE MAINTENANCE 12 -30 Follow these steps to replace the drum unit: Follow these steps to replace the drum unit: Caution To prevent damage to the printer from static electricity, do not touch the electrodes shown below. 12 -31 TROUBLESHOOTING AND ROUTINE MAINTENANCE 3 3out of the drum unit. (See Replacing the toner cartridge on page 12-25.) Lock Lever Discard the used drum unit according to local regulations, keeping it separate from domestic waste. Be sure to seal the drum unit tightly so toner powder does not spill out of the unit. If you have questions, call your local waste disposal office. 4 Wait to unpack the new drum unit until immediately before installing it. Place the old drum unit into the plastic bag and discard it according to local regulations. 5 Reinstall the toner cartridge into the new drum unit. (See Replacing the toner cartridge on page 12-25.) 6 Reinstall the new drum unit, keeping the front cover open. 7 Press Clear/Back. 8 Press 1 and when the LCD shows Accepted, and close the front cover. Replace Drum? 1.Yes 2.No Caution If toner scatters and your hands or clothes get dirty, immediately wipe it off or wash it with cold water. TROUBLESHOOTING AND ROUTINE MAINTENANCE 12 -32 Checking the drum life Checking the drum life Miscellaneous 3.Drum Life 2 For two seconds, the LCD shows the available percentage of drum life. Even if the remaining drum life is 0%, you may continue to use the drum unit until you have a print quality problem. Page Counter You can see number of total pages, copy pages, print pages and List/Fax (total fax print + total list print) pages that your MFC has printed. 1 Press Menu, 2, 0, 4. Miscellaneous 4.Page Counter 2 The LCD shows number of pages for Total. Press or to see Copy, Print and List/Fax. 3 Press Stop/Exit. 12 -33 TROUBLESHOOTING AND ROUTINE MAINTENANCE 13 Memory board The memory board is installed on the main controller board inside the MFC. When you add the optional memory board, it increases the performance for both copier and printer operations. Optional Memory 32 MB TECHWORKS 12457-0001 64 MB TECHWORKS 12458-0001 128 MB TECHWORKS 12459-0001 In general, the DIMM must have the following specifications: Type: 100 pin and 32 bit output CAS Latency: 2 or 3 Clock Frequency: 100MHz or more Capacity: 32, 64, 128 MB Height: 1.4 inches (35...