Brother MFC-8370DN Service Manual

3-44
Confidential
4.4 Dirt on Paper
4.5 Wrinkles or creases
4.6 Waves in the paper / folds in the paper at the eject roller 2
<User Check>
- Check if the paper is loaded into the paper tray correctly.
- Turn over the stack of paper in the paper tray, or try rotating the paper 180° in the paper
tray.
Step Cause Check
Result Remedy
1
Fuser unit dirty Is there dirt around the
entrance of the fuser
unit?
Yes
Clean the entrance of the
fuser unit.
Is the pressure roller
ASSY dirty?
Yes
Clean the pressure roller
ASSY.
<User Check>
- Check if the paper is loaded into the paper tray correctly.
- Turn over the stack of paper in the paper tray, or try rotating the paper 180° in the paper
tray.
Step Cause Check
Result Remedy
1
Fuser unit dirty Is there dirt around the
entrance of the fuser
unit?
Yes
Clean the entrance of the
fuser unit.
2
Fuser unit failure Is the problem solved if
new fuser unit is
replaced?
Yes
Replace the fuser unit.
<User Check>
- Check that the problem is solved if new paper is used.
Step Cause Check
Result Remedy
1
Foreign object
around eject roller 2
Is there a foreign object
around the eject roller 2?
Yes
Remove the foreign object.
2
Eject roller 2
failure
Is the problem solved
after replacing the new
eject roller 2?
Yes
Replace the Joint cover
ASSY.

Brother MFC-8370DN 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)	28 ppm
Input color depth	48 bit
Optical scanning resolution	600 x 2400 DPI
Copier resize	25 - 400 %
Maximum copy resolution	1200 x 600 DPI
Maximum number of copies	99 copies
N-in-1 copy function (N=)	2, 4, 9, 16, 25
Copy speed (black, normal quality, A4)	28 cpm
Faxing	Mono faxing
Fax memory	500 pages
Modem speed	33.6 Kbit/s
Total input capacity	250 sheets
Total output capacity	150 sheets
Multi-Purpose tray input capacity	50 sheets
Auto document feeder (ADF) input capacity	20 sheets
Display	LCD
Product color	Grey, White
Market positioning	Home & office
Display number of lines	2 lines
Display number of characters	16
Card reader integrated	-
Sound power level (standby)	30 dB
Sound pressure level (printing)	56 dB
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
Standard interfaces	Ethernet, USB 2.0
USB 2.0 ports quantity	1
Dimensions (WxDxH)	531 x 451 x 475 mm
All-in-one functions	Copy, Fax, Scan
Color all-in-one functions	Scan
Power consumption (standby)	85 W
Power consumption (average operating)	680 W
Package weight	21100 g
Digital sender	No
Maximum duty cycle	- pages per month

Weight and Dimensions

Depth	443 mm
Width	390 mm
Height	442 mm