6-4
Disassembly Flowchart
6.1.7
6.1.3
6.1.4
6.1.6
6.1.6
6.1.6
6.1.5
6.1.4
6.1.12
6.1.5
6.1.6
6.1.3
6.1.4
6.1.8
6.1.1
6.1.5
6.1.5
Bac
kup batter
y
6.1.8
6.1.9
6.1.9
6.1.12
6.1.10
6.1.10
6.1.11
6.1.14
6.1.14
6.1.14
6.1.13
6.1.14
6.1.13
6.1.2
6.1.3
(NO
TE 1)
Document co
ve
r
P
ow
er supply
insulation sheet
Main PCB
USB PCB
EMC plate (USB)
Modular PCB
Dr
iv
er PCB
EMC plate (MJ)
Rear co
ve
r L
Batter
y co
ve
r*
Rear co
ver S**
ASF
Scanner unit
Insulation sheet
Enclosure co
ve
r
P
ow
er supply PCB
NCU PCB
*
Bottom plate and main insulation sheet
Control panel ASSY
Pr
int head unit
Upper co
ve
r
ASF co
ve
r R
ASF co
ve
r L
Media module
Handset mount* Side co
ve
r**
Speak
er
Ink absorber case
Ink slot co
ve
r
Air pump & motor module
Engine unit
Ink car
tr
idge suppor
t base
- ASF roller ASSY - ASF motor - Center base flap - Sensor PCB - Registr
ation sensor actuator
P
aper f
eeding related
- PF encoder disk - P
aper f
eed motor
- PF timing belts - PF encoder sensor - Flushing f
oam co
ve
r
Purge unit
CR encoder str
ip
Pr
int head unit
Needle tube & head flat cab
le
ASSY
(NO
TE 2)
(NO
TE 3)
(NO
TE 4)
(NO
TE 7)
(NO
TE 8)
(NO
TE 9)
(NO
TE 5)
(NO
TE 6)
(NO
TE 10)
*
F
or
th
e M
F
C
4820
C
.
**
F
or t
he
M
F
C
442
0C
.
S
en
so
rs,
e
nco
de
rs,
a
nd
th
er
mi
sto
rs
(N
O
T
E
1)
On t
he
c
on
trol
p
anel
P
C
B
is
a s
canne
r/
in
k s
lo
t c
ov
er open
s
en
sor
.
(N
OT
E
2)
O
n
th
e r
ig
ht
en
d
of
th
e A
S
F
is
an
A
S
F
s
w
itc
h.
(N
OT
E
3)
O
n
th
e
se
ns
or
PC
B
is
a r
eg
is
tr
at
io
n s
ens
or
.
(N
O
T
E 4
)
On
th
e ha
nd
se
t m
ount
* i
s
a h
oo
k
sw
itc
h.
(N
O
T
E 5
)
On
th
e pr
int
h
ead
uni
t is
a
he
ad
th
erm
is
to
r.
(N
O
T
E 6
)
On
th
e le
ft
si
de
o
f t
he
engi
ne
uni
t i
s a
P
F
en
code
r
se
ns
or
.
(N
OT
E
7)
O
n
th
e p
ur
ge u
ni
t i
s a p
ur
ge
ca
m
H
P
s
w
itc
h.
(N
O
T
E 8
)
On
th
e ne
edle
tube
&
he
ad
fla
t c
able
A
SSY
are
a
pa
per
w
id
th
se
ns
or
and
C
R
e
nc
oder
s
en
sor
.
(N
O
T
E
9)
On t
he
in
k
ca
rt
ridg
e s
up
por
t ba
se
are
four
in
k c
art
ridge
s
en
sor
s.
(N
O
T
E
10
)
O
n t
he
ai
r
pu
m
p & m
ot
or m
odule
is
an air
pu
m
p m
ot
or
en
co
der
s
en
sor
.
Содержание MFC-4820C
Страница 1: ...FACSIMILE EQUIPMENT SERVICE MANUAL MODEL MFC4820C MFC4420C ...
Страница 6: ...CHAPTER 1 PARTS NAMES FUNCTIONS ...
Страница 13: ...CHAPTER 2 SPECIFICATIONS ...
Страница 19: ...2 5 2 1 4 Environmental Conditions ...
Страница 26: ...CHAPTER 3 SETTING UP OF THE MACHINE ...
Страница 29: ...3 2 3 2 UNPACKING THE MACHINE The equipment consists of the following major components ...
Страница 40: ...CHAPTER 4 THEORY OF OPERATION ...
Страница 76: ...CHAPTER 5 ROUTINE MAINTENANCE ...
Страница 84: ...CHAPTER 6 DISASSEMBLY REASSEMBLY ...
Страница 114: ...6 29 6 1 11 Speaker 1 Pull the speaker and its spring out of the lower cover ...
Страница 136: ...CHAPTER 7 MAINTENANCE MODE ...
Страница 145: ...7 8 Scanning Compensation Data List ...
Страница 160: ...7 23 1st sheet 2nd sheet Vertical Alignment Check Patterns and Head Skew Check Pattern ...
Страница 162: ...7 25 Margin Check Patterns ...
Страница 170: ...CHAPTER 8 ERROR INDICATION AND TROUBLESHOOTING ...
Страница 196: ...8 25 3 Pull up the jammed paper to remove it Jammped paper 4 Reinstall the paper tray Paper tray ...
Страница 197: ...MFC4820C MFC4420C Appendix 1 Serial No Descriptions ...
Страница 204: ...App 2 3 Select the folder where the Downloader driver is located then click OK Click Next Click Yes ...
Страница 205: ...App 2 4 Click Finish to return to Windows ...
Страница 209: ...MFC4820C MFC4420C Appendix 3 EEPROM Customizing Codes ...
Страница 212: ...MFC4820C MFC4420C Appendix 4 Firmware Switches WSW ...
Страница 252: ...App 4 40 WSW48 to WSW50 Selector No Function Setting and Specifications 1 8 Not used ...
Страница 253: ...MFC4820C MFC4420C Appendix 5 Re Packing Instructions ...
Страница 255: ...App 5 2 2 Place the machine in the original box with the original packaging material ...
Страница 256: ...MFC4820C MFC4420C Appendix 6 Wiring Diagram ...
Страница 259: ...A Main PCB 1 5 ...
Страница 260: ...A Main PCB 2 5 ...
Страница 261: ...A Main PCB 3 5 ...
Страница 262: ...A Main PCB 4 5 ...
Страница 263: ...A Main PCB 5 5 ...
Страница 264: ...B Driver PCB ...
Страница 265: ...C NCU PCB ...
Страница 266: ...D Control Panel PCB ...
Страница 267: ...E Power Supply PCB ...
Страница 268: ...Feb 03 SM FAX016 8CA602 Printed in Japan ...