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Brother cannot guarantee this optimum performance if toner or toner cartridges of other specifications are used. Brother does not therefore recommend the use of cartridges other than genuine Brother branded cartridges with this machine. If damage is caused to the drum unit or other part of this machine as a result of using other manufacturer’s products with this machine, any repairs required as a result may not be covered by the warranty. 65 Routine Maintenance e Pull off the protective cover. f Put the new toner cartridge firmly into the drum unit until you hear it lock into place. If you put it in properly, the lock lever will lift automatically. CAUTION Make sure that you put in the toner cartridge properly or it may separate from the drum unit. g Clean the primary corona wire inside the drum unit by gently sliding the blue tab from right to left and left to right several times. 1 CAUTION Be sure to return the tab to the home position (a) (1). If you do not, printed pages may have a vertical stripe. 66 6. Routine Maintenance 67 h Put the drum unit and toner cartridge assembly back in the printer. Close the front cover. Routine Maintenance Drum unit A new drum unit can print approximately 25,000 A4 or Letter size single-sided pages at 5% coverage. Note • There are many factors that determine the actual drum life, such as the temperature, humidity, type of paper, type of toner used, number of pages per print job and so on. Under ideal conditions, the average drum life is estimated at approximately 25,000 pages. The actual number of pages that your drum will print may be significantly less than this estimate. 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. • For best performance, use only genuine Brother toner. The printer should be used only in a clean, dust- free environment with adequate ventilation. • Printing with a third-party drum unit may reduce not only the print quality but also the quality and life of the printer itself. Warranty coverage does not apply to problems caused by the use of a third-party drum unit. Change Drum message If the LED shows the message below, it means the drum unit is near the end of its life. We recommend that you replace the drum unit with a new one before there is a noticeable deterioration in the print quality. Replacing the drum unit CAUTION While removing the drum unit, handle it carefully because it may contain toner. Every time you replace the drum unit, clean the inside of the printer. See Cleaning on page 73. 68 6. Routine Maintenance 69 When you replace the drum unit with a new one, you need to reset the drum counter by completing the following steps: a Make sure that the printer is turned on and the Drum LED is blinking. Press the front cover release button and then open the front cover. b Press and hold down Go for about 4 seconds until all the LEDs light up. Once all four LEDs are lit, release Go. Improper Setup Do not reset the drum counter when you only replace the toner cartridge. c Take out the drum unit and toner cartridge assembly. Routine Maintenance CAUTION We recommend that you put the drum unit and toner cartridge assembly on a piece of disposable paper or cloth in case you accidentally spill or scatter toner. To prevent damage to the printer from static electricity, DO NOT touch the electrodes shown in the illustration. d Push down the blue lock lever and take the toner cartridge out of the drum unit. CAUTION Handle the toner cartridge carefully. If toner scatters on your hands or clothes, wipe or wash it off with cold water at once. To avoid print quality problems, DO NOT touch the shaded parts shown in the illustrations. Note • Be sure to seal up the drum unit tightly in a bag so that toner powder does not spill out of the unit. • Discard the used drum unit according to local regulations, keeping it separate from domestic waste. If you have questions, call your local waste disposal office. 70 6. Routine Maintenance 71 e Unpack the new drum unit. CAUTION Wait to unpack a drum unit until immediately before you put it in the printer. Exposure to direct sunlight or room light may damage the drum unit. f Put the toner cartridge firmly into the new drum unit until you hear it lock into place. If you put the cartridge in properly, the blue lock lever will lift automatically. CAUTION Make sure that you put in the toner cartridge properly, or it may separate from the drum unit. g Put the drum unit and toner cartridge assembly back in the printer. h Close the front cover. i Make sure that the Drum LED is now off. Routine Maintenance Replacing periodic maintenance parts You need to replace the periodic maintenance parts regularly to maintain print quality. You should replace the parts listed below after printing the following number of pages. Item Approximate Life To Buy Replacement Separator pad holder assembly 100,000 pages 1 Call Brother ...

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