Brother MFC-8380DN Service Manual

3-54
Confidential
■ Dirt on the back of paper
■ Vertical streaks
■ Black vertical streaks in a light background
<User Check>
- This problem may disappear after printing approximately
10 pages of completely blank sheets.
Step Cause Check
Result Remedy
1
Scratch and Dirt
on the fuser unit
Is the pressure roller
ASSY dirty? Is any other
area in the machine dirty?
Yes Print approximate 10 pages.
No
Replace the fuser unit.
2
Scratch and Dirt
in the paper feed
system
Is the paper feed system
dirty? Yes
Wipe dirt off.
<User Check>
- This problem may occur with noise which is caused by dirt
on the corona wire in the drum unit. In this case, clean the
corona wire with the wire cleaner.
- Replace the drum unit with a new one.
- Replace the toner cartridge with a new one.
Step Cause Check
Result Remedy
1
Scratch and Dirt
in the paper feed
system
Is the paper feed system
dirty? Yes
Wipe dirt off.
2
Scratch and Dirt
on the exposure
drum
Are there scratch and
dirt on the surface of the
exposure drum?
Yes
Replace the drum unit.
3
Scratch and Dirt
on the heat roller
Are there scratch and
dirt on the surface of the
heat roller?
Yes
Replace the fuser unit.
CAUTION :
• If the machine prints the same pattern, especially including vertical streaks,
continuously, black vertical streaks may appear on the paper since the electrostatic
performance of the exposure drum is decreased temporally.
<User Check>
- Clean the inside of the machine and the corona wire in the drum
unit.
- Replace the toner cartridge with a new one.
Step Cause Check
Result Remedy
1
Drum unit failure
Is the problem solved after
replacing the drum unit?
Yes
Replace the drum unit.

Brother MFC-8380DN Specifications

General

Duplex printing	Yes
Print technology	Laser
Maximum resolution	1200 x 1200 DPI
Time to first page (black, normal)	8.5 s
Print speed (black, normal quality, A4/US Letter)	30 ppm
Scan to	e-mail, FTP, OCR, USB
Input color depth	48 bit
Copier resize	25 - 400 %
Maximum copy resolution	1200 x 600 DPI
Maximum number of copies	99 copies
N-in-1 copy function (N=)	4, 9, 16, 25
Copy speed (black, normal quality, A4)	30 cpm
Faxing	Mono faxing
Fax memory	500 pages
Modem speed	33.6 Kbit/s
Total input capacity	500 sheets
Total output capacity	150 sheets
Multi-Purpose tray input capacity	50 sheets
Auto document feeder (ADF) input capacity	20 sheets
Internal memory	64 MB
Sound power level (standby)	30 dB
Sound pressure level (printing)	56 dB
Display	LCD
Market positioning	Home & office
Custom media sizes	(69.8 - 216) x (116 - 406.4) mm
Dimensions (WxDxH)	531 x 451 x 475 mm
Networking features	10/100 Base-TX
All-in-one functions	Copy, Fax, Scan
Maximum internal memory	0.576 GB
Color all-in-one functions	scan, n
Compatible operating systems	Linux, Windows 2000, XP/2003, Vista, XP, Mac OS X 10.3.9
Maximum print size	216 x 297 mm
Media weight (tray 1)	60 - 105 gsm
Paper tray media types	Bond paper, Envelopes, Labels, Plain paper, Recycled paper, Transparencies
Non-ISO print media sizes	Executive
ISO A-series sizes (A0...A9)	A4, A5, A6
ISO B-series sizes (B0...B9)	B5
Maximum ISO A-series paper size	A4
Multi-Purpose Tray media weight	60 - 163 g/m²
Supported network protocols (IPv4)	IPv4, IPv6
Standard interfaces	Ethernet, USB 2.0
USB 2.0 ports quantity	1
Power consumption (standby)	85 W
Power consumption (PowerSave)	19 W
Power consumption (average operating)	680 W
Package weight	21100 g