Brother HL-4200CN Service Manual page 176

2.5.5 PWBA DRV HBN
1) Remove the all connectors on the PWBA DRV HBN from the right side of the
printer.
2) Remove 4 screws securing the PWBA DRV HBN to the printer.
3) Remove the PWBA DRV HBN from the printer.
PWBA DRV HBN
Fig.4-104
- IV-58 -
Screw, M3x6
Screw, M3x6
Screw, M3x6