black smudges #brother dcp-L2540dw, cleaning upper fuser roller
#howto
#brother
#fixed
#diy
#laser
#dcp-L2540dw
#mfc-L2740dw
#mfc-2700
#dcp-7065
#dcp-7440d
#dcp-L2550dw
#mfc-7360
#solved
this is how to clean upper fuser roller
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