Brother HL-4200CN - Manual (Page 138)

7 - 12 ROUTINE MAINTENANCE AND CONSUMABLE REPLACEMENT
Replacing the Transfer Roll Cartridge
Follow the procedure below to replace the transfer roll cartridge.
1
Push up button A (1) and fully open the front cover
(2).
2
Grip the orange tabs at both ends of the transfer roll
(1) and gently lift it out of the printer (2).
Lift the transfer roll carefully to prevent waste toner
from spilling out.
Lift the transfer roll cartridge carefully to prevent
transfer roll from spilling out.