Brother MFC-9010CN Service Manual

3-81
Confidential
■ Horizontal lines
<User Check>
- The paper tray ground terminal provided in the machine
body may be dirty. Clean the contact with a dry cloth.
-
Replace the drum unit with a new one.
- Replace the toner cartridge with a new one.
Step Cause Check
Result
Remedy
1 Dirt on charged
electrode
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)
)
2 Paper tray ground
terminal provided
in machine body
Is the paper tray ground
terminal bent, which is
provided in the machine
body?
Yes Correct bending of
paper tray ground
terminal.
3 Toner attached on
the develop roller
Are the horizontal lines
at 31 mm (develop roller
circumference)
intervals?
Yes
This symptom might
disappear after making
approximate 10 prints.
4 Scratch on the heat
roller
Are the horizontal lines
at 78 mm (heat roller
circumference)
intervals?
Yes Replace the fuser unit.
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.

Brother MFC-9010CN Specifications

General

Functions	Print, Copy, Scan, Fax
Max. Color Print Speed	25 ppm
Scan Resolution	1200 x 2400 dpi
Fax Transmission Speed	33.6 kbps
Standard Paper Capacity	250 sheets
PC Connectivity	USB 2.0, Ethernet
Display	LCD
Print Technology	Laser
Media Size	A4, Letter, Legal
Media Type	Plain paper, Envelopes, Transparencies