Brother MFC-6800 User manual

Multi-Function Machine
SERVICE MANUAL
MODEL: MFC6800/DCP1000
MFC9180/MFC9160

© Copyright Brother 2001
All rights reserved.
No part of this publication may be reproduced in any
form or by any means without permission in writing
from the publisher.
Specifications are subject to change without notice.

PREFACE
This publication is a Service Manual covering the specifications, construction, theory of operation,
and maintenance of the Brother multi-function machine. It includes information required for field
troubleshooting and repair--disassembly, reassembly, and lubrication--so that service personnel
will be able to understand machine function, to rapidly repair the machine and order any necessary
spare parts.
To perform appropriate maintenance so that the machine is always in best condition for the
customer, the service personnel must adequately understand and apply this manual.
This manual is made up of six chapters and appendices.
CHAPTER 1 GENERAL DESCRIPTION
CHAPTER 2 INSTALLATION
CHAPTER 3 THEORY OF OPERATION
CHAPTER 4 DISASSEMBLY/REASSEMBLY AND LUBRICATION
CHAPTER 5 MAINTENANCE MODE
CHAPTER 6 ERROR INDICATION AND TROUBLESHOOTING
Appendix 1. EEPROM Customizing Codes
Appendix 2. Firmware Switches (WSW)
Appendix 3. Circuit Diagrams
This manual describes the models and their versions to be destined for major countries. The specifications
and functions are subject to change depending upon each destination.

SAFETY INFORMATION
Laser Safety (110-120V Model only)
This printer is certified as a Class 1 laser product under the US Department of Health and Human
Services (DHHS) Radiation Performance Standard according to the Radiation Control for Health
and Safety Act of 1968. This means that the printer does not produce hazardous laser radiation.
Since radiation emitted inside the printer is completely confined within the protective housings and
external covers, the laser beam cannot escape from the machine during any phase of user
operation.
CDRH Regulations (110-120V Model only)
The Center for Device and Radiological Health (CDRH) of the US Food and Drug Administration
implemented regulations for laser products on August 2, 1976. These regulations apply to laser
products manufactured from August 1, 1976. Compliance is mandatory for products marketed in
the United States. The label shown below indicates compliance with the CDRH regulations and
must be attached to laser products marketed in the United States.
The label for Chinese products
MANUFACTURED: JUNE 2001 C
BROTHER CORP. (ASIA) LTD.
BROTHER BUJI NAN LING FACTORY
Gold Garden Industry, Nan Ling Village, Buji,
Rong Gang, Shenzhen, China.
This product complies with FDA radiation
performance standards, 21 CFR Subchapter J.

CHAPTER 1
GENERAL DESCRIPTION

CHAPTER 1 GENERAL DESCRIPTION
CONTENTS
1.1 OUTLINE..........................................................................................................................1-1
1.1.1 External Appearance and Weight ........................................................................1-1
1.1.2 Components .........................................................................................................1-1
1.2 SPECIFICATIONS............................................................................................................1-2

1-1
1.1 OUTLINE
1.1.1 External Appearance and Weight
The figure below shows the machine appearance and approximate dimensions.
Weight: Machine proper Approx. 11 kg
Machine (incl. drum unit & toner cartridge) Approx. 12 kg
In package Approx. 16 kg
1.1.2 Components
The machine consists of the following major components:
(D) 458 m
m
18.0"
(H) 354 mm
13.9"
(W) 459 m
m
18.1"

1-2
1.2 SPECIFICATIONS
(1/2)
YL4-FB(MFC) YL4-DCP
Model Name MFC 6800 DCP 1000
GENERAL
Print En
g
ine Laser
(
YL4
)
Laser
(
YL4
)
Modem S
p
eed
(
b
p
s
)
14,400
(
Fax
)
-
Transmission S
p
eed
(
sec.
)
6
(
Brother#1,MMR
)
-
ITU-T Grou
p
G3 -
Codin
g
Method MH/MR/MM
R
-
In
p
ut/Out
p
ut Width 5.8"-8.5"/3.5"-8.5" 5.8"-8.5"/3.5"-8.5"
In
p
ut/Out
p
ut Len
g
th 5"-14"/5"-14" 5"-14"/5"-14"
A
DF
(p
a
g
es
)
U
p
to 30 U
p
to 30
LCD Size 16 characters x 2 lines 16 characters x 2 lines
LCD Backli
g
h
t
No No
Backu
p
Clock Yes
(
1 hour
)
Yes
(
1 hour
)
Memor
y
Ca
p
acit
y
(p
h
y
sical
)
8 Mb
y
tes
(
RAM
)
8 Mb
y
tes
(
RAM
)
O
p
tional Memor
y
No No
Dimensions w/ Carton
(
WxDxH
)
596 x 566 x 452 mm 596 x 566 x 452 mm
Dimensions w/o Carton
(
WxDxH
)
459 x 458 x 354 mm 459 x 458 x 354 mm
Wei
g
ht w/ Carton 16 k
g
16 k
g
Wei
g
ht w/o Carton 11 k
g
11 k
g
Colo
r
Gra
y
1495 Gra
y
1495
Operatin
g
Environment Temperature 10 - 32.5 de
g
rees Centi
g
rade 10 - 32.5 de
g
rees Centi
g
rade
Humidit
y
20 - 80% 20 - 80%
Power Source 120 VAC 50/60Hz 120 VAC 50/60Hz
Power Consum
p
tion
(
Slee
p
/Standb
y
/Peak
)
15W/ 75W/ 940W or less 15W/ 75W/ 940W or less
On/Off Switch Yes Yes
Warm U
p
Time
App
rox. 13 sec.
App
rox. 13 sec.
TELEPHONE
Handset No -
One-Touch Dial No -
S
p
eed Dial 100 -
S
p
eaker Phone No -
Chain Dialin
g
Yes -
Caller ID Yes -
Call Waitin
g
Caller ID No -
Distinctive Rin
g
in
g
Yes -
Call Mana
g
eNo-
Hold/Mute Ke
y
No -
Power Failure Dialin
g
No -
S
p
eaker
(
Volume
)
Yes
(
3 ste
p
s + OFF
)
-
Rin
g
(
Volume
)
Yes
(
3 ste
p
s + OFF
)
-
Handset Volume - -
PBX Feature No -
Transfer Method No -
FA
X
Internet FA
X
N/
A
-
Eas
y
Receive/Fax Detect Yes -
Fax/Tel Switch - -
Enhanced Remote Activate Yes -
Scan S
p
eed
(
sec./
p
a
g
e, A4:Standard
)
App
rox. 3 -
Memor
y
Transmission
(
Brother#1 Chart
)
500
p
a
g
es
(
MMR/Standard Resolution
)
-
Memor
y
Transmission
(
ITU-T Chart
)
400
p
a
g
es
(
MMR/Standard Resolution
)
-
Broadcastin
g
Yes
(
150 locations
)
-
Manual Broadcasting Yes -
Out-of-Pa
p
er Rece
p
tion
(
Brother #1 Chart
)
500
p
a
g
es
(
MMR/Standard Resolution
)
-
Out-of-Pa
p
er Rece
p
tion
(
ITU-T Chart
)
400
p
a
g
es
(
MMR/Standard Resolution
)
-
A
uto Reduction Yes -
ECM
(
Error Correction Mode
)
Yes -
Grou
p
Dial Yes
(
u
p
to 6
)
-
Memor
y
Securit
y
No -
Memor
y
Backu
p
No No
Color FAX
(
Document Send/Receive
)
No -
Color FAX
(
Memor
y
Send/Receive
)
No -
LIST/REPORT
A
ctivit
y
Re
p
ort/Journal Re
p
ort Yes
(
u
p
to 200
)
-
Transmission Verification Re
p
ort Yes -
INTERFACE
External TAD Interface Yes No
Host Interface
(
Serial
)
No No
Host Interface
(
IEEE1284
)
Yes Yes
Host Interface
(
USB
)
Yes Yes
LAN Interface No No
A
cce
p
table Media Card Slot N/
A
N/
A
A
nalo
g
Video Port N/
A
N/
A

1-3
(2/2)
YL4-FB(MFC) YL4-DCP
Model Name MFC 6800 DCP 1000
PRINTER
Color/Mono Mono Mono
En
g
ine T
yp
e Laser
(
YL4
)
Laser
(
YL4
)
Resolution
(
d
p
i
)
600 x 600 600 x 600
S
p
eed
(pp
m
)
u
p
to 10 u
p
to 10
Pa
p
er Ca
p
acit
y
(
sheets
)
200 200
A
dditional Pa
p
er Ca
p
acit
y
(
sheets
)
No No
Out
p
ut Pa
p
er Ca
p
acit
y
(
sheets
)
50 50
Standard Print Lan
g
ua
g
e Windows GDI Windows GDI
Emulation No No
Resident Fonts No No
Fonts Disk Based Yes Yes
Pa
p
er Handlin
g
Size LTR, LGL, A4, B5, A5, EXE LTR, LGL, A4, B5, A5, EXE
Manual Feed Slot N/
A
N/
A
Other Pa
p
er T
yp
eOHP,Envelo
p
es, Or
g
anize
r
OHP, Envelo
p
es, Or
g
anize
r
Sheet Weight (Paper Tray) 64-158
g
/m2
(
16 - 42 lb
)
64-158
g
/m2
(
16 - 42 lb
)
(
Manual Slot
)
N/
A
N/
A
Printer Drive
r
Win95/98/98SE/Me/2000Professional
/
Win95/98/98SE/Me/2000Professional
/
NT4.0WS MacOS 8.5.1-9.1 NT4.0WS MacOS 8.5.1-9.1
COPY
Color/Mono Mono Mono
S
p
eed
(
c
p
m
)
U
p
to 10 U
p
to 10
Multi Co
py
(
Stack
)
Yes Yes
Multi Co
py
(
Sort
)
Yes
(
ADF onl
y)
Yes
(
ADF onl
y)
Reduction/Enlar
g
ement
(
%
)
25 -- 400 in 1% increments 25 -- 400 in 1% increments
Resolution
(
d
p
i
)
300 x 300 300 x 300
First Co
py
Out Time
(
From Read
y
Mode/ADF
)
App
rox. 13 sec.
App
rox. 13 sec.
(
From Read
y
Mode/FB
)
App
rox. 12 sec.
App
rox. 12 sec.
SCANNER
Color/Mono Colo
r
Colo
r
Resolution
(
O
p
tical : d
p
i
)
600x300
(
Max. 600x2,400
)
600x300
(
Max. 600x2,400
)
Resolution
(
Int. : d
p
i
)
9,600x9,600 9,600x9,600
Gra
y
Scale 256 256
Color Depth 24 bit
(
8 bits x 3
)
24 bit
(
8 bits x 3
)
TWAIN Com
p
liant&O
p
eratin
g
S
y
stem Win95/98/98SE/Me, WinNT4.0WS
/
Win95/98/98SE/Me, WinNT4.0WS/
2000Professional, MacOS 8.6-9.1 2000Professional, MacOS 8.6-9.1
PCI Scanner (Parallel/Serial) Parallel/USB Parallel/USB
BUNDLED SOFTWARE
For Windows
Su
pp
ort OS version Win95/98/98SE/Me, WinNT4.0WS/2000Professional Win95/98/98SE/Me, WinNT4.0WS/2000Professional
Printer Drive
r
Yes Yes
TWAIN Yes Yes
Viewe
r
Yes Yes
Pop Up Menu Yes Yes
OC
R
Yes Yes
PC Fa
x
Yes
(
TX:FAX Share onl
y)
N/
A
Remote Setu
p
Yes No
PC Diagnostics Yes No
Others
A
uto E-mail Printin
g(
Win 95/98
(
SE
)
/Me onl
y)
A
uto E-mail Printin
g(
Win 95/98
(
SE
)
/Me onl
y)
For iMac/G3/G4
Su
pp
ort OS version Printer Drive
r
MacOS 8.5.1-9.1 MacOS 8.5.1-9.1
TWAIN MacOS 8.6-9.1 MacOS 8.6-9.1
Printer Drive
r
Yes Yes
TWAIN Yes Yes
Viewe
r
Yes Yes
Pop Up Menu No No
OC
R
Yes Yes
PC Fa
x
Yes No
Remote Setu
p
No No
PC Diagnostics No No
Others - -
ACCESSORY
Life / Yield Starter: 2,200
p
a
g
es
@
5% covera
g
e Stater: 2,200
p
a
g
es
@
5% covera
g
e
Toner : TN-250 Re
g
ular:2,200
p
a
g
es
@
5% covera
g
eRe
g
ular:2,200
p
a
g
es
@
5% covera
g
e
Drum : DR-250 20,000 pa
g
es
@
5% cvr
g
: 20 pa
g
es/
j
ob 20,000 pa
g
es
@
5% cvr
g
: 20 pa
g
es/
j
ob
8,000 pages @5% cvrg: 1 page/job 8,000 pages @5% cvrg: 1 page/job

1-4
(1/2)
YL4-FB(w/ Modem) YL4-FB(w/o Modem)
Model Name MFC-9180 MFC-9160
GENERAL
Print En
g
ine Laser
(
YL4
)
Laser
(
YL4
)
Modem S
p
eed
(
b
p
s
)
14,400
(
Fax
)
-
Transmission S
p
eed
(
sec.
)
App
rox. 6
(
brother #1chart,MMR
)
-
ITU-T Grou
p
G3 -
Codin
g
Method MH/MR/MM
R
-
In
p
ut/Out
p
ut Width 5.8"-8.5"/3.5"-8.5" 5.8"-8.5"/3.5"-8.5"
In
p
ut/Out
p
ut Len
g
th 5"-14"/5"-14" 5"-14"/5"-14"
ADF(pages) U
p
to 30
(
75
g
/m2
)
U
p
to 30
(
75
g
/m2
)
LCD size 16 characters x 2 lines 16 characters x 2 lines
LCD Backli
g
ht Yes Yes
Backu
p
Clock Yes
(
9 hours
)
Yes
(
1 hour
)
Memor
y
Ca
p
acit
y
(p
h
y
sical
)
8 Mb
y
tes
(
RAM
)
8 Mb
y
tes
(
RAM
)
O
p
tional Memor
y
N/
A
N/
A
Dimensions w/ Carton
(
WxDxH
)
596 x 566 x 452 mm 596 x 566 x 452 mm
Dimensions w/o Carton
(
WxDxH
)
459 x 458 x 354 mm 459 x 458 x 354 mm
Wei
g
ht w/ Carton 16 k
g
16 k
g
Wei
g
ht w/o Carton 11 k
g
11 k
g
Colo
r
Gra
y
1495 Gra
y
1495
O
p
eratin
g
Environment Tem
p
erature 10 - 32.5 de
g
rees Centi
g
rade 10 - 32.5 de
g
rees Centi
g
rade
Humidit
y
20 - 80 % 20 - 80 %
Power Source 220-240 VAC 50/60Hz 220-240 VAC 50/60Hz
Power Consum
p
tion
(
Slee
p
/Standb
y
/Peak
)
15W/ 75W/ 940W or less 15W/ 75W/ 940W or less
On/Off Switch Yes Yes
Warm U
p
Time
App
rox. 12 sec.
App
rox. 12 sec.
TELEPHONE N/A
Handset No -
One-Touch Dial No -
S
p
eed Dial 100 -
S
p
eaker Phone No -
Chain Dialin
g
Yes -
Caller ID N/
A
-
Call Waitin
g
Caller ID N/
A
-
Distinctive Rin
g
in
g
Yes
(
UK.DEN onl
y)
-
Call Mana
g
eNo-
Hold/Mute ke
y
N/
A
-
Power Failure Dialin
g
N/
A
-
S
p
eaker Volume Yes
(
3 ste
p
s + OFF
)
-
Rin
g
Volume Yes
(
3 ste
p
s + OFF
)
-
Handset Volume N/
A
-
PBX Feature Yes -
Transfer Method Flash -
FA
X
N/A
Internet FA
X
N/
A
-
Eas
y
Receive/Fax Detect Yes -
Fax/Tel Switch Yes -
Enhanced Remote Activate Yes -
Quick Scan
(
Memor
y
transmission
)
Yes as default. A
pp
rox.2.8 sec/
p
a
g
e
(
A4 standard
)
-
Memor
y
Transmission
(
ITU-T #1 Chart
)
400
p
a
g
es
(
MMR/Standard Resolution
)
-
Memor
y
Transmission
(
Brother#1 Chart
)
500
p
a
g
es
(
MMR/Standard Resolution
)
-
Broadcastin
g
Yes ( 150 locations) -
Manual Broadcastin
g
Yes
(
50 locations
)
-
Out-of-Pa
p
er Rece
p
tion
(
ITU-T #1 Chart
)
400
p
a
g
es
(
MMR/Standard Resolution
)
-
Out-of-Pa
p
er Rece
p
tion
(
Brother#1 Chart
)
500
p
a
g
es
(
MMR/Standard Resolution
)
-
A
uto Reduction Yes -
ECM
(
Error Correction Mode
)
Yes -
Grou
p
Dial Yes
(
u
p
to 6
)
-
Memor
y
Securit
y
Yes -
Memor
y
Backu
p
Yes
(
Max. 4 da
y
s
)
-
Color FAX
(
Document Send/Receive
)
No / No -
Color FAX
(
Memor
y
Send/Receive
)
No / No -
LIST/REPORT
A
ctivit
y
Re
p
ort/Journal Re
p
ort Yes
(
u
p
to 200
)
-
Transmission Verification Re
p
ort Yes -
INTERFACE
External TAD Interface Yes No
Host Interface
(
Serial
)
No No
Host Interface
(
IEEE1284
)
Yes Yes
Host Interface
(
USB
)
Yes Yes
LAN Interface No No
A
cce
p
table Media Card Slot N/
A
N/
A
A
nalo
g
Video Port N/
A
N/
A