Brother HL-5440D Service Manual page 158

(7) Remove the taptite cup S M3x8 SR screw and the two taptite bind B M4x12 screws to
remove the low-voltage power supply PCB ASSY from the machine, and disconnect the
low-voltage power supply harness from the low-voltage power supply PCB ASSY.
Low-voltage power supply harness
Low-voltage power
supply PCB ASSY
Notch
Taptite bind B M4x12
Assembling Note:
• When attaching the low-voltage power supply PCB ASSY, engage the notch on the
low-voltage power supply PCB ASSY with the hook on the machine.
• Check that the heater harness is housed in frame L as shown in the illustration below.
Otherwise the harness may be caught in some sections of the machine, and may catch
fire.
Hook
Fig. 3-39
Notch
Heater harness
Fig. 3-40
3-39
Hook
Taptite cup S M3x8 SR
Heater harness is
housed in frame L.
Confidential