Brother DCP-7055 Basic User's Manual page 46

g
Put the new toner cartridge firmly into
the drum unit so that it locks into place.
If you put it in correctly, the green lock
lever will lift automatically.
38
h
Clean the primary corona wire inside the
drum unit by gently sliding the green tab
from left to right and right to left several
times.
1
Note
Be sure to return the tab to the home
position (a) (1). If you do not, printed
pages may have a vertical stripe.
i
Put the drum unit and toner cartridge
assembly back into the machine. Close
the front cover.