Brother MFC-9330CDW Service Manual

2-100
Confidential
■ Ghost
■ Color misregistration
■ Fogging
<User Check>
- Check the machine’s environment. High temperature and high
humidity or low temperature and low humidity conditions can cause this
problem.
- Check whether appropriate paper type is selected on the driver.
- Select "Improve Toner Fixing Mode" in the driver.
- Replace the drum unit with a new one.
Step Cause Remedy
1 Fuser unit failure Replace the fuser unit.
2 High-voltage power supply
PCB failure
Replace the high-voltage power supply PCB
ASSY.
3 Main PCB failure Replace the main PCB ASSY.
<User Check>
- Implement the adjustment of color registration (adjustment of inter-color
position alignment).
- Replace the drum unit with a new one.
- Replace the belt unit with a new one.
- Replace the waste toner box with a new one.
Step Cause Remedy
1 Registration mark L failure Replace the registration mark L PCB ASSY.
2 Registration mark R failure Replace the registration mark R PCB ASSY.
3 Main PCB failure Replace the main PCB ASSY.
<User Check>
- Check the machine’s environment. High temperature and high
humidity or low temperature and low humidity conditions can cause this
problem.
- This symptom might stop occurring after making several prints.
- Replace the drum unit or toner cartridge with a new one.
- Do not use acid paper.
Step Cause Remedy
1 High-voltage power supply
PCB failure
Replace the high-voltage power supply PCB
ASSY.
2 Main PCB failure Replace the main PCB ASSY.
Note:
This problem often occurs when the drum unit or toner cartridge is nearly at the end of life.

Brother MFC-9330CDW Specifications

Print Specifications

print speed black	up to 23 ppm
print speed color	up to 23 ppm
print resolution	up to 600 x 2400 dpi

Copy Specifications

copy speed black	up to 23 cpm
copy speed color	up to 23 cpm
copy resolution	600 x 600 dpi

Scan Specifications

scan resolution optical	1200 x 2400 dpi
scan resolution interpolated	19200 x 19200 dpi
document glass size	8.5” x 11.7”

Fax Specifications

fax modem speed	33.6k bps
fax page memory	up to 500 pages
speed dial locations	200

Paper Handling

auto document feeder capacity	up to 35 pages
paper size maximum	up to 8.5” x 14” (legal)
standard paper capacity	250 sheets

Power and Energy

deep sleep mode power consumption	<2W
automatic duplex printing	Yes
energy star qualified	Yes