Samsung SCX-82x0 series User manual

A3 Mono Copier
SCX-82x0 series
SCX-8240NA / SCX-8230NA
(Ver 2.01)
A3 Mono Copier Contents
1. Precautions
2. Product Description
3. Replacement Procedure
4. Service Mode
5. Updating Firmware
6. Preventive Maintenance
7. Troubleshooting
8. System Diagram
9. System Recovery
10. Reference Information

Contents
1. Precautions .................................................................................................................................................. 1-1
1.1 Safety Warning.........................................................................................................................................1-1
1.2 Caution for safety ...................................................................................................................................1-2
1.3 ESD Precautions.......................................................................................................................................1-5
2. Product description ..................................................................................................................................2-1
2.1 Specifications ............................................................................................................................................2-1
2.2 System configuration ............................................................................................................................2-7
2.3 Sensor location ..................................................................................................................................... 2-16
2.4 Paper handling section .....................................................................................................................2-20
2.4.1 Overview.......................................................................................................................................... 2-20
2.4.2 Components................................................................................................................................... 2-23
22.4.3 Functions....................................................................................................................................... 2-24
2.4.4 Paper tray........................................................................................................................................ 2-25
2.4.5 Pick up unit .................................................................................................................................... 2-26
2.4.6 Registration unit ........................................................................................................................2-27
2.4.7 MPF unit ........................................................................................................................................ 2-28
2.5 Image creation ...................................................................................................................................... 2-29
2.5.1 Printing process overview ..................................................................................................... 2-29
2.5.2 Imaging unit .................................................................................................................................. 2-30
2.5.2.1 Imaging unit overview ................................................................................................. 2-30
2.5.2.2 Drum drive...........................................................................................................................2-31
2.5.2.3 Development ......................................................................................................................2-32
2.6 Fuser unit................................................................................................................................................. 2-34

2.6.1 Fuser unit overview.....................................................................................................................2-34
2.6.2 Fuser unit components............................................................................................................. 2-35
2.6.3 Fuser unit drive.............................................................................................................................2-36
2.6.4 Temperature control ..................................................................................................................2-37
2.7 Laser Scanning Unit............................................................................................................................2-38
2.7.1 Laser Scanning Unit overview ..............................................................................................2-38
2.7.2 Laser Scanning Optical path ................................................................................................2-39
2.7.3 Laser synchronizing detectors .............................................................................................2-40
2.8 Printer Drive system ...........................................................................................................................2-41
2.8.1 Drive Motors.................................................................................................................................. 2-41
2.8.2 Main drive unit ............................................................................................................................. 2-43
2.8.3 Pick-up Drive ................................................................................................................................. 2-44
2.8.4 Fuser/Exit Drive.............................................................................................................................2-45
2.8.5 Toner Duct drive..........................................................................................................................2-46
2.8.6 Drive of Toner Supply ............................................................................................................... 2-46
2.8.7 WTB leveling drive ......................................................................................................................2-47
2.8.8 PR Release drive...........................................................................................................................2-47
2.9 Scanner system ..................................................................................................................................... 2-48
2.9.1 Scanner System overview ...................................................................................................... 2-48
2.9.2 Scanning System components ............................................................................................2-49
2.10 DADF ..................................................................................................................................................... 2-51
2.10.1 DADF System overview ........................................................................................................ 2-51
2.10.2 Electric parts layout..................................................................................................................2-54
2.10.3 DADF Drive System.................................................................................................................. 2-55
2.10.3.1 DADF Original Drive assembly ............................................................................... 2-56

2.10.3.2 DADF Original registration drive assembly ...................................................... 2-57
2.10.3.3 DADF Original feed drive assembly .................................................................... 2-58
2.10.3.4 DADF Exit drive assembly ........................................................................................2-59
22.10.3.5 DADF Gate drive assembly ................................................................................... 2-60
2.11 Hardware configuration..................................................................................................................2-61
2.11.1 Main controller...........................................................................................................................2-64
2.11.1.1 MSOK................................................................................................................................... 2-66
2.11.1.2 Fax-Joint PBA ................................................................................................................... 2-66
2.11.1.3 Primary Modem Card................................................................................................... 2-67
2.11.1.4 Secondary Modem Card.............................................................................................2-68
2.11.1.5 FDI ...................................................................................................................................... 2-69
2.11.2 OPE Controller............................................................................................................................2-71
2.11.2.1 Sub Key PBA.....................................................................................................................2-73
2.11.2.2 USB Hub Controller PBA.............................................................................................2-74
2.11.3 DADF Controller ........................................................................................................................2-75
2.11.4 Interface Part...............................................................................................................................2-76
2.11.5 Connection Part.........................................................................................................................2-76
2.11.6 SMPS 1........................................................................................................................................... 2-77
2.11.7 SMPS 2........................................................................................................................................... 2-79
2.11.8 FDB ..................................................................................................................................................2-81
2.11.9 HVPS ............................................................................................................................................... 2-82
2.11.10 Eraser PBA.................................................................................................................................. 2-83
2.11.11 Side Joint PBA.......................................................................................................................... 2-83
2.11.12 Fuser PBA................................................................................................................................... 2-84
2.11.13 Waste Sensor PBA..................................................................................................................2-84

2.11.14 LED Panel PBA .........................................................................................................................2-84
2.11.15 Crum PBA................................................................................................................................... 2-85
2.11.16 Deve Crum Joint PBA ........................................................................................................... 2-85
2.11.17 Toner Crum Joint PBA.......................................................................................................... 2-85
2.11.18 Scan Joint PBA.........................................................................................................................2-86
2.11.19 CCDM PBA................................................................................................................................. 2-87
2.11.20 WLED CTL PBA.........................................................................................................................2-88
2.11.21 WLED AL Front PBA............................................................................................................... 2-88
3. Replacement produce .............................................................................................................................3-1
3.1 General precautions on disassembly ...........................................................................................3-1
3.2 Cover ............................................................................................................................................................3-2
3.2.1 Front cover ........................................................................................................................................3-2
3.2.2 Left cover............................................................................................................................................3-3
3.2.3 Rear cover..........................................................................................................................................3-4
3.2.4 Right cover ........................................................................................................................................3-5
3.3. OPE Unit.....................................................................................................................................................3-6
3.3.1 OPE assembly...................................................................................................................................3-6
3.3.2 OPE PBA and LCD panel .............................................................................................................3-8
3.3.3 Key buttons .................................................................................................................................... 3-11
3.4 Scan unit..................................................................................................................................................3-12
3.4.1 Scanner Assembly .......................................................................................................................3-13
3.4.2 Scan Glass....................................................................................................................................... 3-16
3.4.3 Lamp Assembly ..........................................................................................................................3-17
3.4.4 Scanner Board...............................................................................................................................3-19
3.4.5 Scanner paper sensor................................................................................................................ 3-20

3.5 Fuser unit................................................................................................................................................. 3-21
3.5.1 Fuser cover ..................................................................................................................................... 3-22
3.5.2 Draw connector............................................................................................................................ 3-23
3.5.3 Halogen lamp................................................................................................................................3-25
3.5.4 Heat roller....................................................................................................................................... 3-26
3.5.5 Pressure roller ...............................................................................................................................3-26
3.6 Side Unit .................................................................................................................................................. 3-27
3.6.1 Duplex sensor................................................................................................................................3-28
3.6.2 Transfer sensor .............................................................................................................................3-29
3.6.3 MP unit............................................................................................................................................. 3-31
3.6.3.1 MP Solenoid ........................................................................................................................3-33
3.7 Electrical components........................................................................................................................3-36
3.7.1 Main board..................................................................................................................................... 3-36
3.7.2 Storage (HDD)...............................................................................................................................3-38
3.7.3 Toner PBA, Toner Motor .......................................................................................................... 3-39
3.7.4 Lift Motor ........................................................................................................................................ 3-40
3.7.5 FDB..................................................................................................................................................... 3-41
3.7.6 HVPS..................................................................................................................................................3-42
3.7.7 SMPS ................................................................................................................................................. 3-43
3.7.8 SMPS Fan ........................................................................................................................................ 3-44
3.7.9 Ozone filter Fan............................................................................................................................3-45
3.7.10. Side Joint PBA ........................................................................................................................... 3-46
3.7.11 Eraser Lamp................................................................................................................................. 3-47
3.7.12. Waste Sensor PBA ................................................................................................................... 3-48
3.7.16 Temperature sensor ................................................................................................................. 3-49

3.7.16.1 Outer Temperature sensor.........................................................................................3-49
3.7.16.2 Inner Temperature sensor..........................................................................................3-49
3.8 Main Drive unit ..................................................................................................................................... 3-50
3.8.1 Main Drive Motor........................................................................................................................3-51
3.8.2 Main Drive Clutch........................................................................................................................3-51
3.9 Exit Drive unit ........................................................................................................................................ 3-52
3.8.1 Exit Drive Motor...........................................................................................................................3-53
3.10 Toner Duct Drive unit......................................................................................................................3-54
3.11 PR Release Drive unit ......................................................................................................................3-55
3.12 Pick-up Drive unit .............................................................................................................................3-56
3.13 WTB Leveling Drive unit................................................................................................................. 3-57
3.14 LSU........................................................................................................................................................... 3-60
3.15 Frame-Duct .......................................................................................................................................... 3-63
3.16 DADF.......................................................................................................................................................3-64
3.16.1 DADF Cover ............................................................................................................................... 3-65
3.16.2 DADF Open Cover ..................................................................................................................3-67
3.16.3 DADF Stacker ..............................................................................................................................3-67
3.16.4 DADF main board.....................................................................................................................3-68
3.16.5 DADF motor, solenoid, clutch ...........................................................................................3-69
3.16.6 DADF Detect/ Cover/ Regi sensor ..................................................................................3-71
3.16.7 DADF Exit Idle sensor.............................................................................................................. 3-72
3.16.8 DADF Exit sensor.......................................................................................................................3-72
3.16.9 DADF Length, Width sensor................................................................................................. 3-73
3.17 Exit unit..................................................................................................................................................3-74
3.18 Regi. unit ............................................................................................................................................... 3-76

3.19 Pick-Up Unit......................................................................................................................................... 3-78
3.20 Cassette heating cable.................................................................................................................... 3-80
4. Service Mode .................................................................................................................................................4-1
4.1 Entering/Exiting Service Mode .......................................................................................................4-1
4 2 Service Mode Menu Tree .................................................................................................................4-2
4.2.1 Information Tab...............................................................................................................................4-2
4.2.2 Maintenance Counts Tab............................................................................................................4-4
4.2.3 Diagnostics Tab Menu .................................................................................................................4-5
4.2.4 Service Functions ............................................................................................................................4-5
4.3 Information ................................................................................................................................................4-6
4.3.1 General ................................................................................................................................................4-6
4.3.2 Supply Status....................................................................................................................................4-6
4.3.2.1 Customer Replacement Unit (CRU) ...........................................................................4-6
4.3.2.2 Field Replacement Unit (FRU) ......................................................................................4-6
4.3.3 Software Version.............................................................................................................................4-8
4.3.4 Service Hours....................................................................................................................................4-8
4.3.5 Fault Log.............................................................................................................................................4-8
4.3.6 Print Report.......................................................................................................................................4-9
4.4 Maintenance Counts...........................................................................................................................4-10
4.4.1 Fault Count..................................................................................................................................... 4-10
4.4.2 Jam Count....................................................................................................................................... 4-11
4.4.3 Part Replacement Count .......................................................................................................... 4-13
4.5 Diagnostics.............................................................................................................................................. 4-14
4.5.1 Engine Diagnostics...................................................................................................................... 4-14
4.5.1.1 NVM Read/Write............................................................................................................... 4-14

4.5.1.2 Engine Test Routines ...................................................................................................... 4-16
4.5.2 Fax Diagnostics.............................................................................................................................4-21
4.5.2.1 Fax NVM Read/Write ...................................................................................................... 4-21
4.5.2.2 Fax Test Routines.............................................................................................................. 4-22
4.5.3 Scanner Diagnostics ................................................................................................................... 4-24
4.5.3.1 Shading Test .......................................................................................................................4-24
4.5.3.2 Scanner/DADF NVM Read/Write ............................................................................... 4-24
4.5.3.3 Scanner/DADF Test Routines.......................................................................................4-25
4.5.4 Adjustment ..................................................................................................................................... 4-27
4.5.4.1 Print Adjustment ............................................................................................................... 4-27
4.5.4.2 Copy Adjustment .............................................................................................................. 4-29
4.5.4.3 Scan Area Adjustment .................................................................................................... 4-30
4.5.4.4 DADF Adjustment ................................................................................................................ 4-32
4.5.4.5 Finisher Adjustment......................................................................................................... 4-34
4.5.4.6 Buckle Adjustment............................................................................................................ 4-37
4.5.5 ACS..................................................................................................................................................... 4-38
4.5.6 Color Management..................................................................................................................... 4-39
4.5.6.1 Scan CTD ................................................................................................................................ 4-39
4.6 Service Functions ................................................................................................................................. 4-41
4.6.1 Main Memory Clear.................................................................................................................... 4-41
4.6.2 Hard Disk Maintenance ............................................................................................................ 4-41
4.6.3 Debug Log...................................................................................................................................... 4-41
4.6.4 Port .................................................................................................................................................... 4-42
4.6.5 Capture Log ................................................................................................................................... 4-42
4.6.6 Toner Save...................................................................................................................................... 4-42

4.6.7 Count Setting of Large Page.................................................................................................. 4-42
4.6.8 System Recovery..........................................................................................................................4-42
4.6.9 User Data Management ........................................................................................................... 4-43
4.6.10 TR Control Mode ......................................................................................................................4-44
4.6.11 Cool Down Mode......................................................................................................................4-45
5. Updating Firmware .....................................................................................................................................5-1
5.1 Updating from the Printer Control Panel ..................................................................................5-2
5.2 Updating from the Network ............................................................................................................5-7
6. Preventive Maintenance ........................................................................................................................6-1
6.1 PM Supplies...............................................................................................................................................6-1
6.1.1 PM Parts .............................................................................................................................................6-1
6.1.2 PM KIT .................................................................................................................................................6-4
6.2 PM Procedures.........................................................................................................................................6-5
6.2.1 Toner cartridge ................................................................................................................................6-5
6.2.2 Imaging unit .....................................................................................................................................6-7
6.2.3 Transfer roller Unit......................................................................................................................6-11
6.2.4 Fuser unit ........................................................................................................................................ 6-12
6.2.5 Pick up / Retard / Forward roller .......................................................................................6-13
6.2.6 Ozone filter..................................................................................................................................... 6-13
6.2.7 DADF Rollers (Pick up/ ADF/ Retard) ............................................................................... 6-14
6.2.8 MP Pick up / Retard / Forward roller .............................................................................. 6-19
6.2.9 Scanner Fan Filter........................................................................................................................6-21
6.3 Cleaning the PM parts.......................................................................................................................6-22
6.3.1 Cleaning the charge scorotron..............................................................................................6-22
6.3.2 Cleaning the pick up roller ..................................................................................................... 6-22

6.3.3 Cleaning the Regi roller............................................................................................................ 6-23
6.3.4 Cleaning the tray1 feed roller................................................................................................6-23
6.3.5 Cleaning the tray2 feed roller................................................................................................6-24
6.3.6 Cleaning the DADF retard rubber pad ............................................................................ 6-25
6.3.7 Cleaning the DADF rollers....................................................................................................... 6-26
6.3.8 Cleaning the ADF glass............................................................................................................. 6-27
7. Troubleshooting ...........................................................................................................................................7-1
7.1 Procedure for checking symptoms ...............................................................................................7-1
7.1.1 System power-up sequence ......................................................................................................7-1
7.1.2 Pre-troubleshooting check list .................................................................................................7-2
7.2 Error code and Trobleshooting ......................................................................................................7-3
7.2.1 Error code and error message.............................................................................................7-A-3
7.2.2 Error Code Details.......................................................................................................................7-12
7.3 Image quality problems and solutions ..................................................................................7-110
7.3.1 Vertical Lines................................................................................................................................7-111
7.3.2 Horizontal Lines..........................................................................................................................7-112
7.3.3 White spot ....................................................................................................................................7-113
7.3.4 Color or Black background ...................................................................................................7-114
7.3.5 Blurred image..............................................................................................................................7-115
7.3.6 Uneven pitch and jitter image.............................................................................................7-116
7.3.7 Skewed image.............................................................................................................................7-117
7.3.8 Low image density....................................................................................................................7-118
7.3.9 Blank copy , Black copy..........................................................................................................7-119
7.3.10 Uneven density in sub scan direction (Horizontal band) ...................................7-121
7.3.11 Uneven density in main scan direction (Vertical Band) ......................................7-122

7.3.12 Poor fusing performance.....................................................................................................7-123
7.3.13 Stain on the paper back side ............................................................................................7-124
7.3.14 DADF skew testing .................................................................................................................7-125
7.4 Other errors..........................................................................................................................................7-130
7.4.1 OPE problem ...............................................................................................................................7-130
7.4.2 USB port problem .....................................................................................................................7-133
7.4.3 FDI device problem ..................................................................................................................7-134
8. System Diagram ...........................................................................................................................................8-1
8.1 Engine 1 ......................................................................................................................................................8-1
8.2 Engine 2 ......................................................................................................................................................8-2
8.3 Engine 3 ......................................................................................................................................................8-3
8.4 Scan & DADF............................................................................................................................................8-4
8.5 Heater & Fuse ..........................................................................................................................................8-5
9. System Recovery..........................................................................................................................................9-1
9.1 Entry Point..................................................................................................................................................9-1
9.2 USB................................................................................................................................................................9-2
9.3 Network.......................................................................................................................................................9-4
9.4 Confirmation Page ...............................................................................................................................9-5
9.5 Error Page...................................................................................................................................................9-6
9.6 Progress Page...........................................................................................................................................9-8
9.7 Error List......................................................................................................................................................9-8
9.8 HDD Repair............................................................................................................................................. 9-10
9.9 HDD Failure ............................................................................................................................................ 9-11
10. Reference Information ......................................................................................................................10-1
10.1 Tools for Troubleshooting .......................................................................................................... 10-1

10.2 Abbreviations ...................................................................................................................................... 10-4

1. Prec
a
1. Warning and cautio
n
In order to prevent accidents and to prevent damage t
o
below carefully before servicing the printer and follow
(1) Only to be serviced by appropriately qualified servi
High voltages and lasers inside this product are da
qualified service technician.
(2) Use only Samsung replacement parts
1.1 Safety Warning
(2)
Use
only
Samsung
replacement
parts
.
There are no user serviceable parts inside the prin
t
additions to the printer as these could cause the pr
fire hazards.
(3) Laser Safety Statement
The Printer is certified in the U.S. to conform to th
e
Subchapter J for Class 1(1) laser products, and el
s
f i t th i t f IEC 825 Cl I l
f
orm
i
ng
t
o
th
e requ
i
remen
t
s o
f
IEC
825
.
Cl
ass
I
l
as
laser system and printer are designed so there is n
Class I level during normal operation, user mainte
n
Warning >> Never operate or service the printer with
t
assembly. The reflected beam, although invisible, can
When using this product, these basic safety pre-cauti
o
electric shock, and personal injury.
Service Manual 1
-
a
utions
n
for safety
o
the equipment please read the precautions listed
them closely.
ce technician.
ngerous. This printer should only be serviced by a
t
er. Do not make any unauthorized changes or
inter to malfunction and create an electric shock or
e
requirements of DHHS 21 CFR, chapter 1
s
ewhere, it is certified as a Class I laser product con-
dt t id dtbh d Th
er pro
d
uc
t
s are no
t
cons
id
ere
d
t
o
b
e
h
azar
d
ous.
Th
e
ever any human access to laser radiation above a
n
ance, or prescribed service condition.
t
he protective cover removed from Laser Scanner
damage your eyes.
o
ns should always be followed to reduce risk of fire,
SAMSUNG ELECTRONICS
-
1

1. Prec
a
1.2 Caution for safety
1.2.1 Toxic material
This product contains toxic materials that could cause
i
(1) If the LCD control panel is damaged it is possible f
o
with the skin should be avoided. Wash any splash
e
doctor. If the liquid gets into the mouth or is swallo
w
(2) Please keep Drum cartridge and Toner cartridge a
w
Drum cartridge and Toner Cartridge may be harmf
u
1.2.2 Electric shock and fire safety
p
Failure to follow the following instructions could cause
e
(1) Use only the correct voltage, failure to do so could
d
electric shock.
(
2
)
Use onl
y
the
p
ower cable su
pp
lied with the
p
rinter.
() y p pp p
cable to overheat and potentially cause a fire.
(3) Do not overload the power socket, this could lead t
o
lead to a fire.
(4) Do not allow water or other liquids to spill into the p
paper clips, pins or other foreign objects to fall into
to an electric shock or fire hazard.
(
5
)
Never touch the
p
lu
g
s on either end of the
p
ower c
a
() p g p
When servicing the printer remove the power plug
f
(6) Use caution when inserting or removing the power
c
firmly and pull. The power connector must be inser
t
overheating possibly leading to a fire.
(7) Take care of the power cable. Do not allow it to be
c
damaged. Do not place objects on top of the powe
r
overheat and cause a fire. Exposed cables could c
a
cable immediately do not reuse or repair the dama
cable
immediately
,
do
not
reuse
or
repair
the
dama
the power cable, weakening the cover or exposing
(8) Ensure that the power sockets and plugs are not cr
a
should be repaired immediately. Take care not to c
the machine.
(9) Use caution during thunder or lightning storms. Sa
m
from the power source when such weather conditi
o
p
ower cord if it is still connected to the wall socket
i
p
(10) Avoid damp or dusty areas, install the printer in a
c
machine near a humidifier or in front of an air con
d
can lead to overheating and cause a fire or cause
(11) Do not position the printer in direct sunlight. This
w
possibly leading to the printer failing to work prop
e
(12) Do not insert any metal objects into the machine t
h
could make contact with a high voltage conductor
Service Manual 1
-
a
utions
i
llness if ingested.
o
r the liquid inside to leak. This liquid is toxic. Contac
t
e
s from eyes or skin immediately and contact your
w
ed see a doctor immediately.
w
ay from children. The toner powder contained in the
u
l and if swallowed you should contact a doctor.
p
recautions
e
lectric shock or potentially cause a fire.
d
amage the printer and potentially cause a fire or
Use of an incorrectl
y
s
p
ecified cable could cause the
yp
o
overheating of the cables inside the wall and could
rinter, this can cause electric shock. Do not allow
the printer these could cause a short circuit leading
a
ble with wet hands, this can cause electric shock.
f
rom the wall socket.
c
onnector. When removing the power connector, grip it
t
ed completely, otherwise a poor contact could cause
c
ome twisted, bent sharply around corners or wise
r
cable. If the power cable is damaged it could
a
use an electric shock. Replace the damaged power
aged cable Some chemicals can attack the coating on
aged
cable
.
Some
chemicals
can
attack
the
coating
on
cables causing fire and shock risks.
a
cked or broken in any way. Any such defects
ut or damage the power cable or plugs when moving
m
sung recommends that this machine be disconnected
o
ns are expected. Do not touch the machine or the
i
n these weather conditions.
c
lean well ventilated location. Do not position the
d
itioner. Moisture and dust built up inside the machine
parts to rust.
w
ill cause the temperature inside the printer to rise
e
rly and in extreme conditions could lead to a fire.
h
rough the ventilator fan or other part of the casing, it
inside the machine and cause an electric shock.
SAMSUNG ELECTRONICS
-
2

1. Prec
a
1.2.3 Handling Precautions
The following instructions are for your own personal s
a
product.
(1) Ensure the printer is installed on a level surface ca
(1)
Ensure
the
printer
is
installed
on
a
level
surface
,
ca
cause the printer to tip or fall.
(2) The printer contains many rollers, gears and fans.
fingers, hair or clothing in any of these rotating de
v
(3) Do not place any small metal objects, containers
o
which if spilled could get into the machine and ca
u
(4) Do not install the machine in areas with high dust
o
a humidifier or heater. Dama
g
e could be caused t
o
1.2.4 Assembly / Disassembly Preca
u
g
(5) Do not place candles, burning cigarettes, etc on th
(6) When reinstalling the imaging unit or ITB unit at p
o
Replace parts carefully and always use Samsung par
t
cable routing before dismantling any part of the machi
Please carry out the following procedures before dism
(1) Check the contents of the machine memory and m
if the main board or network card is replaced.
(2) Ensure that power is disconnected before servicin
g
(3) Disconnect printer interface cables and power cabl
(3)
Disconnect
printer
interface
cables
and
power
cabl
(4) Only use approved spare parts. Ensure that part n
u
temperature rating are correct.
(5) When removing or re-fitting any parts do not use e
x
plastic.
(6) Take care not to drop any small parts into the mac
(7) Handling of the OPC Drum
-
The OPC Drum can be irreparably damaged if it e
-
The
OPC
Drum
can
be
irreparably
damaged
if
it
e
Take care not to expose the OPC Drum either to
d
room lighting. Exposure for as little as 5 minutes
c
properties and will result in print quality degradati
o
Remove the OPC Drum and store it in a black ba
g
working with the Covers (especially the top cover
)
damage the OPC Drum.
- Take care not to scratch the green surface of OP
C
If the green surface of the Drum Cartridge is scra
t
compromised.
Service Manual 1
-
1
-
a
utions
a
fety, to avoid injury and so as not to damage the
apable of supporting its weight Failure to do so could
apable
of
supporting
its
weight
.
Failure
to
do
so
could
Take great care to ensure that you do not catch your
v
ices.
o
f water, chemicals or other liquids close to the printer
u
se damage, shock or fire hazard.
o
r moisture levels, beside on open window or close to
o
the
p
rinter in such areas.
u
tions
p
e printer, These could cause a fire.
o
wer off, perform the OPC-ACR surely.
t
s. Take care to note the exact location of parts and
ne. Ensure all parts and cables are replaced correctly.
antling the printer or replacing any parts.
ake a note of any user settings. These will be erased
g
or replacing any electrical parts.
les
les
.
u
mber, product name, voltage, current and
x
cessive force, especially when fitting screws into
hine.
exposed to light
exposed
to
light
.
d
irect sunlight or to fluorescent or incandescent
c
an damage the surface of the photoconductive
o
n. Take extra care when servicing the printer.
g
or other lightproof container. Take care when
)
open as light is admitted to the OPC area and can
C
Drum Unit.
t
ched or touched the print quality will be
SAMSUNG ELECTRONICS
-
3
-
3

1. Prec
a
1.2.5 Disregarding this warning may
(1) Be careful with high temperature components.
The fuser unit works at a high temperature. Use ca
u
cool down before disassembly.
(2) Do not put fingers or hair into the rotating parts.
When operating a printer, keep your hands and hai
r
motor, fan, etc.).
(3) When moving the printer :
- When transporting/installing the equipment, employ f
o
- Be sure not to hold the movable parts or units (e.g. th
equipment.
- Be sure to use a dedicated outlet with 110V/220V po
w
- The equipment must be grounded for safety.
- Select a suitable place for installation. Avoid excessi
v
sunlight.
- Provide proper ventilation since the equipment emits
- The e
q
ui
p
ment must be installed near the socket outl
qp
-Be sure to fix and plug in the power cable securely aft
e
-If you are moving the machine a short distance, you s
h
(e.g : same building through elevator)
- If you are moving the machine a long distance, you
s
& staple unit, tape and disassemble all trays. (e.g : m
o
Service Manual 1
-
a
utions
cause bodily injury
u
tion when working on the printer. Wait for the fuser to
r
away form the rotating parts (Paper feeding entrance,
o
ur people and be sure to hold the lifting handles.
e control panel, DADF) when transporting the
w
er input.
v
e heat, high humidity, dust, vibration and direct
a slight amount of ozone.
et and must be accessible.
e
r the installation so that no one trips over it.
h
ould separate the finisher.
s
hould remove toner & imaging unit, lock scan carrier
o
ved by truck or so)
SAMSUNG ELECTRONICS
-
4

1. Prec
a
1.3 ESD Precautions
Certain semiconductor devices can be easily damage
d
commonly called “Electrostatically Sensitive (ES) Dev
integrated circuits some field effect transistors and se
integrated
circuits
,
some
field
effect
transistors
,
and
se
The techniques outlined below should be followed to
h
caused by static electricity.
Caution >>Be sure no power is applied to the chassis
1. Immediately before handling a semiconductor com
p
off any electrostatic charge on your body by touchi
n
commercially available wrist strap device, which sh
o
prior to applying power to the unit under test.
2. After removing an electrical assembly equipped wit
h
such as aluminum or copper foil, or conductive foa
m
vicinity of the assembly.
3. Use only a grounded tip soldering iron to solder or
d
4 Use only an
“
anti
static
”
solder removal device Som
4
.
Use
only
an
anti
-
static
solder
removal
device
.
Som
static” can generate electrical charges sufficient to
5. Do not use Freon-propelled chemicals. When spra
y
damage ESDs.
6. Do not remove a replacement ESD from its protecti
v
Most replacement ESDs are packaged with all lead
s
or a comparable conductive material.
7. Immediately before removing the protective shortin
g
touch the protective material to the chassis or circui
8. Maintain continuous electrical contact between the
E
until completely plugged or soldered into the circuit.
9. Minimize bodily motions when handling unpackage
d
the brushing together of clothing fabric and lifting o
n
electricity sufficient to damage an ESD
electricity
sufficient
to
damage
an
ESD
.
Service Manual 1
-
a
utions
d
by static electricity. Such components are
ices” or ESDs. Examples of typical ESDs are:
emiconductor
“
chip
”
components
emiconductor
chip
components
.
h
elp reduce the incidence of component damage
or circuit, and observe all other safety precautions.
p
onent or semiconductor-equipped assembly, drain
n
g a known earth ground. Alternatively, employ a
ff
o
uld be removed
f
or your personal sa
f
ety reasons
h
ESDs, place the assembly on a conductive surface,
m
, to prevent electrostatic charge buildup in the
d
esolder ESDs.
me solder removal devices not classified as
“
anti
me
solder
removal
devices
not
classified
as
anti
-
damage ESDs.
y
ed, these can generate electrical charges sufficient to
v
e packaging until immediately before installing it.
s
shorted together by conductive foam, aluminum foil,
g
material from the leads of a replacement ESD,
t assembly into which the device will be installed.
E
SD and the assembly into which it will be installed,
d
replacement ESDs. Normal motions, such as
n
e’s foot from a carpeted floor, can generate static
SAMSUNG ELECTRONICS
-
5

2. Product Description
SAMSUNG ELECTRONICS
Service Manual 2-1
2.1 Specifications
2. Product description
2.1.1 Product Overview
SCX-8230/8240 series
Print and Copy Speed (Mono)
SCX-8230NA : Up to 30 ppm in A4
SCX-8240NA : Up to 40 ppm in A4
Scan Speed
40 ipm @ 300 dpi
Dual Core CPU 1GHz
HDD : 320GB
2GB Memory
Toner Cartridge
Initial : 20,000 pages
Sales : 20,000 / 35,000 pages 2 types
Option
: HCF, DCF, Standard Finisher(1K)
Booklet Finisher(3K), Fax etc.
10.1 inch full color LCD
XOA(eXtensible Open Architecture)

2. Product Description
SAMSUNG ELECTRONICS
Service Manual 2-2
Item SCX-8230NA SCX-8240NA
Printing Speed (A4) 30 ppm 40 ppm
FCOT < 7 sec < 5.5 sec
Warm-up Time < 25 sec
Duplex Printing Speed 30 ppm 40 ppm
Scanning Speed (A4) (Color) 40 ipm @ 600 dpi
60 ipm @ 300 dpi
Memory 2GB
HDD 320 GB
CPU 1GHz
Resolution
• Optical : 600 x 600 dpi
• Enhanced : Draft 600 x 600 x 1bit
Default 600 x 600 x 2 bit
Up to 600 x 600 x 4 bit
Gradation 256
Size (W x D x H ) 677.5 x 742.8 x 924 mm (26.7 x 29.2 x 36.4 inches)
Weight Approx. 113Kg (250lb) (Including consumables and tray)
Noise (dB) • Ready mode : 37 dB(A) • Printing mode : 54 dB(A)
• Copying mode : 57 dB(A)
Power consumption
• Average operating mode : Less than 1,100 W
• Ready mode : Less than 200 W
• Low Power mode : Less than 15 W
• Power Save mode : Less than 7 W
• Power off mode : 0 W
Power requirement AC 110-127V , 50/60 Hz or AC 220-240V , 50/60 Hz
Note - See the Rating label on the machine for the correct voltage, frequency
(hertz) and type of current.
Power output rating for heating
wire in DCF/HCF
AC 110-127V , 50/60 Hz or AC 220-240V , 50/60 Hz
Note - See the Rating label on the machine for correct voltage, frequency (hertz)
and type of current.
The voltage rating of heating wire is the same as the machine’s voltage rating.
General Specifications
2.1.2 Specifications