If your printout has dots at 94mm (3.7in.) intervals, the drum may have foreign material, such as glue from a label stuck on the drum surface. Please follow the steps below to solve the problem.
NOTE: Illustrations shown below are from a representative product and may differ from your Brother machine.
*If your Brother machine has a touchscreen, please follow the steps under "For touchscreen models" below.
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DO NOT put a toner cartridge or a toner cartridge and drum unit assembly into a fire. It could explode, resulting in injuries.
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DO NOT use flammable substances, any type of spray, or an organic solvent/liquid containing alcohol or ammonia to clean the inside or outside of the product. Doing so could cause a fire or electrical shock. Instead, use only a dry, lint-free cloth.
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Make sure that the machine is in the Ready mode.
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Press Menu.
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Press the Up or Down arrow key to choose Print Reports, and then press OK.
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Press the Up or Down arrow key to choose Drum Dot Print, and then press OK.
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Press Start to print the drum dot check sheet.
Go to STEP 6 under "For touchscreen models" below.
<For touchscreen models>
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Make sure that the machine is in the Ready mode.
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Press Menu.
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Press the Up or Down arrow key to display Print Reports.
Press Print Reports.
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Press the Up or Down arrow key to display Drum Dot Print.
Press Drum Dot Print.
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The machine will display Press Start.
Press Start to print the drum dot check sheet.
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Leave the machine turned on for 10 minutes for the internal fan to cool the extremely hot parts inside the machine.
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After the machine has cooled down, turn off the machine's power switch.
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Press the front cover release button and then open the front cover.
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