Brother International MFC-8710DW Advanced User's Guide - English - Page 70
Cleaning the drum unit
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d Clean the corona wire inside the drum unit by gently sliding the green tab from left to right and right to left several times. 1 Cleaning the drum unit A If your printout has dots 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. Press Menu, 6, 6, then press Start to print the drum dot check sheet. 66.Drum Dot Print Note Be sure to return the tab to the home position (a) (1). If you do not, printed pages may have a vertical stripe. e Put the drum unit and toner cartridge assembly back into the machine. Printing b Leave the machine turned on for 10 minutes for the internal fan to cool the extremely hot parts inside the machine. c After the machine has cooled down, turn off the machine's power switch. d Press the front cover release button and then open the front cover. f Close the front cover of the machine. 64