Brother MFC-8370DN Service Manual

3-9
Confidential
3. ERROR CODES
This machine includes a self-diagnosis function. If the machine does not work normally it
judges that an error has occurred, and indicates the corresponding error message on the
LCD, which in turn helps the end user to quickly find out the problem.
3.1 Error Indication
Error
codes
Problem
Refer
to:
Error
codes
Problem
Refer
to:
1E
The drum unit reached its life
and requires replacement.
3-12 59
Fuser unit failure (Detect fuser
failure at start-up)
3-17
1F
Two or more optional trays are
installed
3-12 63
Toner life end
3-17
24
Internal temperature sensor
failure
3-12 67
Toner low
3-17
35
EEPROM of main PCB failure
3-13 68
Temperature rise when heater is
off
3-18
36
HVPS PCB during standby
failure
3-13 69
Mis-connect center thermistor
connector
3-18
3B
Main PCB RAM failure
3-13 6A
Fuser temperature does not
reach 60°C within the specified
time (center thermistor)
3-19
3C
EEPROM writing error
(Not applicable) 3-13 6B
Fuser temperature does not
reach 100°C within the specified
time (center thermistor)
3-19
3D
EEPROM reading error
(Not applicable)
3-13 6C
Fuser temperature exceeds its
higher limit (center thermistor)
3-19
3E
EEPROM bus error
(Not applicable)
3-13 6D
Fuser temperature exceeds its
lower limit (center thermistor)
3-19
44
No toner cartridge
3-14 6E
Fuser temperature does not rise
(center thermistor)
3-19
50
The drum unit reached its life
and requires replacement. 3-14 6F
Hardware detects extremely
high temperature of the center
or side thermistors
3-19
51
The paper feed kit MP reached
its life and requires replacement.
3-14 70
Fuser motor error
3-20
52
The paper feed kit T1 reached
its life and requires replacement.
3-15 71
Laser unit polygon motor failure
3-20
53
The paper feed kit T2 reached
its life and requires replacement.
3-15 72
Laser beam emission failure
3-20
54
The fuser unit reached its life
and requires replacement.
3-15 75
Sensor of the inside
temperature for detection
detected higher than normal
temperature
3-20
55
The laser unit reached its life
and requires replacement.
3-15 76
Rapid temperature rising failure
(center thermistor)
3-21
56
Back cover is opened
3-16 78
Rapid temperature falling failure
(center thermistor)
3-21
57
Paper jam (Duplex tray)
3-16 7A
No detection of main motor
synchronous signal
3-21
58
Fuser unit failure
3-17 7D
Dirt on corona wire (detect
discharge error)
3-21

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