Brother HL-5240 Service Manual page 82

(27) Slide the Sub duct to the direction of 27b while pressing the three Hooks and remove the
Sub duct from the Air duct.
Filter
27a
(28) Remove the Filter from the Air duct.
NOTE:
The filter is dirt. Be careful when disassembling or assembling it.
Air duct
27b
Hooks
Fig. 3-35
Filter
Fig. 3-36
3-21
HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL
Sub duct
Air duct
Confidential