Brother HL-3180CDW Advanced User's Manual page 40

s
Put the toner cartridge firmly into the
drum unit until you hear it lock into place.
If you put the cartridge in correctly, the
green lock lever will lift automatically.
NOTE
Make sure you put in the toner cartridge
correctly or it may separate from the drum
unit.
34
t
Slide each toner cartridge and drum
assembly into the machine. Make sure
you match the toner cartridge color to
the same color label on the machine.
BK = Black, C = Cyan,
M = Magenta, Y= Yellow
BK
C
M
Y