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Home > Routine Maintenance > Clean the Machine > Clean the Drum Unit
Clean the Drum Unit
If your printout has black or white dots or other repeating marks at 94 mm intervals, the drum may have foreign
material, such as glue from a label, stuck on the drum surface.
>> DCP-L3510CDW/DCP-L3517CDW
>> DCP-L3550CDW/MFC-L3710CW/MFC-L3730CDN/MFC-L3750CDW/MFC-L3770CDW
DCP-L3510CDW/DCP-L3517CDW
1. Make sure the machine is in Ready Mode.
2. Press Menu.
3. Press a or b to select the following:
a. Select [Print Reports]. Press OK.
b. Select [Drum Dot Print]. Press OK.
The machine prints the Drum Dot Check Sheet.
4. Press and hold to turn the machine off.
5. Open the top cover until it locks in the open position.
WARNING
HOT SURFACE
The machine's internal parts will be extremely hot. Wait for the machine to cool down before touching
them.
6. The colour of printed dots on the Drum Dot Check Sheet is the colour of the drum you should clean. Remove
the toner cartridge and drum unit assembly that matches the colour causing the problem.
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