Brother International DCP 8040 Service Manual - Page 201
Cleaning the Drum Unit, Cleaning the Scanner Window
UPC - 012502610328
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CHAPTER 5 PERIODIC MAINTENANCE 3.4 Cleaning the Drum Unit When replacing the drum unit or toner cartridge with a new one, be sure to clean the drum unit. 1) Turn off the power switch and unplug the power cord. 2) Press the cover release button, and then open the front cover. 3) Pull out the drum unit assembly. ! CAUTION: It is recommended to place the drum unit assembly on a piece of disposable paper or cloth in case you accidentally spill or scatter toner. 4) Clean the primary corona wire inside the drum unit by gently sliding the blue tab from right to left several times. Return the tab to the home position before re-install the drum unit assembly. Home position Fig. 5-39 ! CAUTION: Make sure that the blue tab on the drum unit is returned to the home position ( mark position) before re-installing the drum unit into the machine, or printed pages may have vertical stripes. 5) Re-install the drum unit into the machine. 6) Close the front cover. 3.5 Cleaning the Scanner Window When replacing the drum unit or toner cartridge with a new one, be sure to clean the scanner window. 1) Turn off the power switch and unplug the power cord. 2) Press the cover release button, and then open the front cover. 3) Pull the drum unit assembly out of the machine. ! CAUTION: It is recommended to place the drum unit assembly on a piece of disposable paper or cloth in case you accidentally spill or scatter toner. 5-22