Brother MFC-8370DN Service Manual

3-78
Confidential
11.2 Double Feeding
11.3 Paper Jam
■ Paper jam in the ADF cover
<User Check>
- Check whether the document does not use the paper which is thinner than the
specification.
Step Cause Check
Result Remedy
1
Feed roller holder
ASSY failure
Is the surface of the
separation roller worn
out?
Yes
Replace the feed roller
holder ASSY.
2
Separation rubber
is abrasion
Is the surface of the
separation rubber worn
out?
Yes
Replace the separation
rubber.
<User Check>
- Check if the document is jammed in the insertion part.
Step Cause Check
Result Remedy
1
Foreign object
around ADF cover
inside
Is there a foreign object
around the ADF cover
inside?
Yes
Remove the foreign
object.
2
Document front
actuator 2
catching on some
position
Does the document front
actuator 2 move
smoothly?
No
Re-assembly the
document front actuator
2.
3
Switch back flap A
catching on some
position
(CIS model)
Does the switch back flap
A move smoothly?
No
Re-assembly the switch
back flap A.
4
Document front
sensor 2
malfunction
Does the document front
sensor 2 move smoothly?
(Check it following the
procedure described in
“Maintenance mode 32”)
No
Replace the document
front sensor 2.

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