Brother HL-L8350CDWT - Manual (Page 168)

Routine Maintenance
161
5
m When you have found the mark on the drum that matches the drum dot check sheet, wipe the surface
of the drum gently with a cotton swab until the mark on the surface comes off.
IMPORTANT
DO NOT clean the surface of the photosensitive drum with a sharp object or any liquids.
n Hold the handle of the toner cartridge and slide it into the appropriate colored section of the drum unit
until you hear it lock into place.
BK - Black
C - Cyan
M - Magenta
Y - Yellow
BK
TN-BK
TN-C
TN-M
TN-Y
BK BK
C
M
Y