Brother MFC-9010CN Service Manual

3-67
Confidential
■ Completely blank
■ Image distortion
<User Check>
- Replace the belt unit with a new one.
- Replace the toner cartridge or drum unit with a new one.
Step Cause Check
Result
Remedy
1
Developing bias
voltage conduction
failure
Are the electrodes on the
drum unit and machine
body dirty?
Yes Clean both electrodes.
(Refer to
Fig. 3-3 (P3-33)
and Fig. 3-6 (P3-34)
)
2Dirt on develop roller
electrode
Are the electrodes on the
develop roller and
machine body dirty?
Yes Clean both electrodes.
(Refer to
Fig. 3-3 (P3-33)
and Fig. 3-6 (P3-34)
)
3 LED array FFC
connection failure
Is the LED array FFC
connected securely?
No Reconnect the LED array
FFC.
4 LED ASSY failure Is the problem solved after
replacing the LED ASSY?
Yes Replace the LED ASSY.
5 HVPS control PCB
failure
Is the problem solved after
replacing the HVPS
control PCB ASSY?
Yes Replace the HVPS
control PCB ASSY.
6 High-voltage power
supply PCB failure
Is the problem solved after
replacing the high-voltage
power supply PCB ASSY?
Yes Replace the high-voltage
power supply PCB ASSY.
7 LED head control
PCB failure
Is the problem solved after
replacing the LED head
control PCB ASSY?
Yes Replace the LED head
control PCB ASSY.
8 Main PCB failure Is the problem solved after
replacing the main PCB
ASSY?
Yes Replace the main PCB
ASSY.
<User Check>
- Replace the belt unit with a new one.
Step Cause Check
Result
Remedy
1
LED head control
PCB failure
Is the problem solved
after replacing the LED
head control PCB ASSY?
Yes Replace the LED head
control PCB ASSY.
2 Main PCB failure Is the problem solved
after replacing the main
PCB ASSY?
Yes Replace the main PCB
ASSY.

Brother MFC-9010CN Specifications

General

Brand	Brother
Model	MFC-9010CN
Category	All in One Printer
Language	English