Brother International MFC-8950DW Advanced User's Guide - English - Page 73
Cleaning the drum unit
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Cleaning the drum unit A If your printout has black or white dots or other repeating marks at 3.7 in. (94 mm) intervals, the drum may have foreign material, such as glue from a label stuck on the drum surface. Follow the steps below to solve the problem. a Make sure that the machine is in the Ready mode. b Press Menu. c Press a or b to display Print Reports. Press Print Reports. d Press a or b to display Drum Dot Print. Press Drum Dot Print. e The machine will display Press Start. Press Start. f Leave the machine turned on for 10 minutes for the internal fan to cool the extremely hot parts inside the machine. g After the machine has cooled down, turn off the machine's power switch. Routine maintenance h Press the front cover release button and then open the front cover. i Take out the drum unit and toner A cartridge assembly. 67