Brother MFC-9130CW Service Manual page 316

(6) Disconnect the two Connectors (CN2 and CN3) from the High-voltage power supply PCB
ASSY.
(7) Disconnect the HVPS flat cable from the Connector (CN1) of the High-voltage power
supply PCB ASSY.
HVPS flat cable
Assembling Note:
- As the DCLN coil spring and CHG 1 coil spring tend to come out of the Side frame R, be
careful not to lose them.
- When assembling the High-voltage power supply PCB ASSY, make sure that the CHG 1 coil
spring and CHG 2 coil spring properly come into contact with the electrodes. If not, Drum
Error will occur.
<Front side>
CHG 1 coil spring
CN3
6
Connector
Fig. 3-222
Side frame R
Fig. 3-223
3-153
7
CN1
High-voltage power supply PCB ASSY
DCLN coil spring
Connector
6
CN2
<Right side>
CHG 2 coil spring
<Back side>
Confidential