DCP-L2600D/DCP-L2620DW/DCP-L2622DW/DCP-L2627DW/DCP-L2627DWXL/DCP-L2627DWE/DCP-L2640DN/MFC-L2802DN/MFC-L2800DW/MFC-L2802DW/MFC-L2827DWXL/MFC-L2827DW/MFC-L2835DW
Make sure the machine is turned on.
Make sure the machine's cover is closed.
Press OK and at the same time.
Press OK to select [Drum].
Press to reset the drum counter.