7.3.16 Stain on the paper back side ……………………………7-149
7.3.17 White Halo …………………………………………………7-150
Page 9
7.4. DADF skew testing ………………………………………………7-151
7.5 Other Errors ………………………………………………………7-153
chapter 8 System diagram
8.1 Main 1 ………………………………………………………………8-1
8.2 Main 2 ………………………………………………………………8-2
8.3 Main 3 ……………………………………………………………8-3
8.4 Main 4 ……………………………………………………………8-4
8.5 SCAN & DADF ……………………………………………………8-5
Contents
chapter 9
chapter 10
8.6 DADF ………………………………………………………………8-6
System Recovery
9.1 Entry Point …………………………………………………………9-1
9.2 USB …………………………………………………………………9-2
9.3 Network ……………………………………………………………9-4
9.4 Confi rmation Page ………………………………………………9-5
9.5 Error Page …………………………………………………………9-6
9.6 Progress Page ……………………………………………………9-7
9.7 Error List ……………………………………………………………9-8
9.8 HDD Repair ………………………………………………………9-8
9.9 HDD Failure ………………………………………………………9-10
Reference information
10.1 Tools for troubleshooting ………………………………………10-1
10.2 Abbreviations ……………………………………………………10-4
Page 10
1. Prec
a
n
o
(2) Use only Samsung replacement parts
t
e
s
f
IEC 825. Cl
n
t
o
-
o
utions
1. Warning and cautio
In order to prevent accidents and to prevent damage t
below carefully before servicing the printer and follow
1.1 Safety Warning
(1) Only to be serviced by appropriately qualified servi
High voltages and lasers inside this product are da
qualified service technician.
.
There are no user serviceable parts inside the prin
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
Subchapter J for Class 1(1) laser products, and el
orming to the requirements of
laser system and printer are designed so there is n
Class I level during normal operation, user mainte
ass I las
for s afety
the equipment please read the precautions listed
them closely.
ce technician.
ngerous. This printer should only be serviced by a
er. Do not make any unauthorized changes or
inter to malfunction and create an electric shock or
requirements of DHHS 21 CFR, chap ter 1
ewhere, it is certified as a Class I laser product coner products are not considered to be hazardous. The
ever any human access to laser radiation above a
ance, or prescribed service condition.
Warning >> Never operate or service the printer with
assembly. The reflected beam, although invisible, can
When using this product, these basic safety pre-cauti
electric shock, and personal injury.
he protective cover removed from Laser Scanner
damage your eyes.
ns should always be followed to reduce risk of fire,
Service Manual
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SAMSUNG ELECTRONICS
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a
1.2 Caution for safety
i
o
e
w
w
u
p
e
d
(2)
()ypppp
o
(5)
a
()pgp
f
c
t
c
r
a
cable immediately, do not reuse or repair the dama
a
m
o
p
i
p
c
d
w
e
h
-
t
y sp
yp
cable. Some chemicals can attack the coating on
1.2.1 Toxic material
1. Prec
utions
This product contains toxic materials that could cause
(1) If the LCD control panel is damaged it is possible f
with the skin should be avoided. Wash any splash
doctor. If the liquid gets into the mouth or is swallo
(2) Please keep Drum cartridge and Toner cartridge a
Drum cartridge and Toner Cartridge may be harmf
1.2.2 Electric shock and fire safety
Failure to follow the following instructions could cause
(1) Use only the correct voltage, failure to do so could
electric shock.
Use only the power cable supplied with the printer.
cable to overheat and potentially cause a fire.
(3) Do not overload the power socket, this could lead t
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.
Never touch the plugs on either end of the power c
When servicing the printer remove the power plug
(6) Use caution when inserting or removing the power
firmly and pull. The power connector must be inser
overheating possibly leading to a fire.
(7) Take care of the power cable. Do not allow it to be
damaged. Do not place objects on top of the powe
overheat and cause a fire. Exposed cables could c
the power cable, weakening the cover or exposing
(8) Ensure that the power sockets and plugs are not cr
should be repaired immediately. Take care not to c
the machine.
(9) Use caution during thunder or lightning storms. Sa
from the power source when such weather conditi
ower cord if it is still connected to the wall socket
(10) Avoid damp or dusty areas, install the printer in a
machine near a humidifier or in front of an air con
can lead to overheating and cause a fire or cause
(11) Do not position the printer in direct sunlight. This
possibly leading to the printer failing to work prop
(12) Do not insert any metal objects into the machine t
could make contact with a high voltage conductor
llness if ingested.
r the liquid inside to leak. This liquid is toxic. Contac
s from eyes or skin immediately and contact your
ed see a doctor immediately.
ay from children. The toner powder contained in the
l and if swallowed you should contact a doctor.
recautions
lectric shock or potentially cause a fire.
amage the printer and potentially cause a fire or
Use of an incorrectl
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
ble with wet hands, this can cause electric shock.
rom the wall socket.
onnector. When removing the power connector, grip it
ed completely, otherwise a poor contact could cause
ome twisted, bent sharply around corners or wise
cable. If the power cable is damaged it could
use an electric shock. Replace the damaged power
cables causing fire and shock risks.
cked or broken in any way. Any such defects
ut or damage the power cable or plugs when moving
sung recommends that this machine be disconnected
ns are expected. Do not touch the machine or the
n these weather conditions.
lean well ventilated location. Do not position the
itioner. Moisture and dust built up inside the machine
parts to rust.
ill cause the temperature inside the printer to rise
rly and in extreme conditions could lead to a fire.
rough the ventilator fan or other part of the casing, it
inside the machine and cause an electric shock.
ecified cable could cause the
Service Manual
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SAMSUNG ELECTRONICS
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a
1.2.3 Handling Precautions
a
(1) Ensure the printer is installed on a level surface, ca
v
o
u
o
o
u
g
o
t
g
(3) Disconnect printer interface cables and power cabl
u
x
-
The OPC Drum can be irreparably damaged if it e
d
c
o
g
)
C
t
-
supporting its weight. Failure to do so could
p
light
1. Prec
utions
The following instructions are for your own personal s
product.
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
(3) Do not place any small metal objects, containers
which if spilled could get into the machine and ca
(4) Do not install the machine in areas with high dust
a humidifier or heater. Damage could be caused t
(5) Do not place candles, burning cigarettes, etc on th
(6) When reinstalling the imaging unit or ITB unit at p
1.2.4 Assembly / Disassembly Preca
Replace parts carefully and always use Samsung par
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
(4) Only use approved spare parts. Ensure that part n
temperature rating are correct.
(5) When removing or re-fitting any parts do not use e
plastic.
(6) Take care not to drop any small parts into the mac
(7) Handling of the OPC Drum
Take care not to expose the OPC Drum either to
room lighting. Exposure for as little as 5 minutes
properties and will result in print quality degradati
Remove the OPC Drum and store it in a black ba
working with the Covers (especially the top cover
damage the OPC Drum.
- Take care not to scratch the green surface of OP
If the green surface of the Drum Cartridge is scra
compromised.
fety, to avoid injury and so as not to damage the
of
Take great care to ensure that you do not catch your
ices.
f water, chemicals or other liquids close to the printer
se damage, shock or fire hazard.
r moisture levels, beside on open window or close to
the printer in such areas.
e printer, These could cause a fire.
wer off, perform the OPC-ACR surely.
tions
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
or replacing any electrical parts.
.
mber, product name, voltage, current and
cessive force, especially when fitting screws into
hine.
to
irect sunlight or to fluorescent or incandescent
an damage the surface of the photoconductive
n. Take extra care when servicing the printer.
or other lightproof container. Take care when
open as light is admitted to the OPC area and can
Drum Unit.
ched or touched the print quality will be
.
Service Manual
1-1
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Page 13
1. Prec
a
u
r
o
w
v
quip
qp
e
h
h
m
-
e
utions
1.2.5 Disregarding this warning may
(1) Be careful with high temperature compone nts.
The fuser unit works at a high temperature. Use ca
cool down before disassembly.
(2) Do not put fingers or hair into the rotating parts.
When operating a printer, keep your hands and hai
motor, fan, etc.).
(3) When moving the printer :
- When transporting/installing the equipment, employ f
- 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
- The equipment must be grounded for safety.
- Select a suitable place for installation. Avoid excessi
sunlight.
- Provide proper ventilation since the equipment emits
- The e
-Be sure to fix and plug in the power cable securely aft
-If you are moving the machine a short distance, you s
(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 :
ment must be installed near the socket outl
cause bodily injury
tion when working on the printer. Wait for the fuser to
away form the rotating parts (Paper feeding entrance,
ur people and be sure to hold the lifting handles.
e control panel, DADF) when transporting the
er input.
e heat, high humidity, dust, vibration and direct
a slight amount of ozone.
et and must be accessible.
r the installation so that no one trips over it.
ould separate the finisher.
ould remove toner & imaging unit, lock scan carrier
oved by truck or so)
1
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a
1.3 ESD Precautions
d
integrated circuits, some field effect transistors, and se
h
p
n
o
h
m
d
4. Use only an anti
static solder removal device. Som
y
v
s
g
E
d
n
electricity sufficient to damage an ESD
-
chip components
solder removal devices not classified as anti
v
s
1. Prec
utions
Certain semiconductor devices can be easily damage
commonly called “Electrostatically Sensitive (ES) Dev
The techniques outlined below should be followed to
caused by static electricity.
Caution >>Be sure no power is applied to the chassis
1. Immediately before handling a semiconductor com
off any electrostatic charge on your body by touchi
commercially available wrist strap device, which sh
prior to applying power to the unit under test.
2. After removing an electrical assembly equipped wit
such as aluminum or copper foil, or conductive foa
vicinity of the assembly.
3. Use only a grounded tip soldering iron to solder or
“
”
-
static” can generate electrical charges sufficient to
5. Do not use Freon-propelled chemicals. When spra
damage ESDs.
6. Do not remove a replacement ESD from its protecti
Most replacement ESDs are packaged with all lead
or a comparable conductive material.
by static electricity. Such components are
ices” or ESDs. Examples of typical ESDs are:
“”
.
elp reduce the incidence of component damag e
or circuit, and observe all other safety precautions.
onent or semiconductor-equipped assembly, drain
g a known earth ground. Alternatively, employ a
uld be removed for your personal safety reasons
ESDs, place the assembly on a conductive surface ,
, to prevent electrostatic charge buildup in the
esolder ESDs.
“
-
damage ESDs.
ed, these can generate electrical charges sufficient to
e packaging until immediately before installing it.
shorted together by conductive foam, aluminum foil,
7. Immediately before removing the protective shortin
touch the protective material to the chassis or circui
8. Maintain continuous electrical contact between the
until completely plugged or soldered into the circuit.
9. Minimize bodily motions when handling unpackage
the brushing together of clothing fabric and lifting o
.
material from the leads of a replacement ESD,
t assembly into which the device will be installed.
SD and the assembly into which it will be installed,
replacement ESDs. Normal motions, such as
e’s foot from a carpeted floor, can generate static
Service Manual
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SAMSUNG ELECTRONICS
Page 15
2. Product
d
-
Print and Copy speed (Color/Mono)
A9 Dual Core 1GHz
Booklet Finisher(3K)
2. Product description
2.1 Specifications
2.1.1 Product Overview
escription
CLX-9252NA : Up to 25 ppmin A4
CLX-9352NA : Up to 35 ppmin A4
Scan Speed
60 ipm @ 300 dpi
CLX-9252/9352 series
Processor
HDD : 320 GB
1.5GB memory
Options
HCF, DCF, Standard Finisher(1K)
, Fax etc.
• 8.9” Full color touch LCD
• XOA(eXtensible Open Architecture) support
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2.1.2 Specifications
0
0
c
s
s
W
0
1
W
C
h
2
h
e
-
General Specifications
2. Product
escription
ItemCLX-9252NA
Printing Speed (A4)
(Color / Mono)
FCOT (Color / Mono)< 10.6 sec / < 9.0 sec
Warm-up Time< 45 sec from Power Save
Duplex Printing SpeedSame as rated engine speed
Scanning Speed (A4)
Memory1.5GB
HDD320 GB
CPU
Resolution
Gradation256
Size (W x D x H )675.5 x 722 x 1153 mm (26.6 x
Weight
25 ppm/ 25 ppm
60 ipm @ 300 dpi
40 ipm @ 600 dpi
A9 Dual Core 1GHz
Optical• 600 x 600 dpi
• Draft 600 x 60
Enhanced
96.71 Kg (213.21 lbs.) (without
110 Kg (312 lbs.) (including con
• Default 600 x 6
• Up to 600 x 60
CLX-9352NA
35 ppm/ 35 ppm
< 8.5 sec / < 7.5 sec
60 ipm @ 300 dpi
40 ipm @ 600 dpi
x 1bit
00 x 2 bit
x 4 bit
28.4 x 45.4 inches)
onsumables and options )
umables without options)
Noise (dB)
Power consumption
Power requirement
Power output rating for
heating wire in
DCF/HCF
Service Manual
• Low Power mode : 34 dB(A)
• Ready mode : 43 dB(A)
• Printing mode : 54 dB(A)
• Copying mode : 57 dB(A)
• Average operating mode : Les
• Ready mode : Less than 250
• Low power mode : Less than 5
• Power save mode : Less than
• Power off mode : Less than 0
AC 110-127 V , 50/60 Hz or: A
Note - See the Rating label on t
type of current.
AC 110-127 V , 50/60 Hz or AC
Note - See the Rating label on t
of current.
The voltage rating of heating wir
than 1,100 W
W
1 W
220-240 V , 50/60 Hz
e machine for the correct voltage, frequency (hertz) and
20-240 V , 50/60 Hz
e machine for correct voltage, frequency (hertz) and type
is the same as the machine’s voltage rating.
2
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Page 17
d
Printer Specifications
Printingmethod
Colorlaserbeamprinting
r
Default
400
600 dpi
e
P
a
.
X
e
e
Duplex copy speed
Duplex to Duplex (2
-
2)
e
6
%
-
t(600x600x2 dpi)
Duplex to Duplex (2
-
2)
2. Product
escription
ItemCLX-9252NA
Printing speedUp to 25 ppm (A4), 25 ppm (Lett
Duplex printing speed Up to 25 ipm (A4), 25 ipm (Lette
The paper feeding system mainly consists of the Pick
Registration roller, MP Paper sensor, Paper Empty s
Tray Feed sensor, Registration sensor, and Drive sy
Return
Exit tray1 paper
full detection
Exit tray1 jam detection
Return
Paper jam detection
Paper curl detection
ath solenoid
Exit
Fuser
p roller, Forward roller, Retard roller, Transport roller,
nsor, Tray Paper Stock sensor, MP Feed sensor,
tem for these components.
Exit2 tray path solenoid
Exit tray2 paper
full detection
Duplex jam detection1
Duplex
Paper regi. time detection
Tray1 paper remaining
quantity detection
Tray1 paper
empty detection
Paper tray
size detection
Tray2 paper
empty detection
Tray2 paper
size detection
Service Manual
ITB
Regi
MPF solenoid
Tray1 upper limit detection
Tray1 lift
Tray2 lift
motor
ray2 pap
quantity d
Pick Up
r remaining
tection
2-
3
Duplex jam detection2
Duplex clutch
MPF
clutch
MPF paper
empty
detection
MPF media size detection
Tray1 transport detection
Tray2 transport detection
MPF
MPF media
size detection
(Long media)
SAMSUNG ELECTRONICS
Page 38
2. Product
d
s
r
Tray1 paper empty detection
Detects tray1 paper e
i
p
s
r
T
Detects t
e
i
p
T
o
Paperjamdetection
Detectsfuserjam
MPFsolenoid
MPFpickuprollerup
s
s
o
Duplex jam detection 2
Detects duplex jam 2
p
e
e
e
2
y
CN4@ Cassette Joint PBA, 3Pin
y
ty
CN4@ C
PBA, 3Pi
CN5@SIDEJOINTPBA,3PIN
CN2@SIDEJOINTPBA,3PIN
CN6 @ SIDE JOINT PBA, 3PIN
y
escription
NameFunct
Tray1 paper size detectionDetects tray1 paper
Tray1 paper remaining quantity
detection
Detects tray1 paper
Tray1 upper limit detectionDetects tray1 upper l
Tray1 transport detectionDetects tray1 paper
Tray2 paper size detectionDetects tray2 paper
Tray2 paper remaining quantity
detection
ray2 paper empty detection
Detects tray2 paper
ray2 paper
Tray2 upper limit detectionDetects tray2 upper l
Tray2 transport detectionDetects tray2 paper
Paper regi. time detectionDetects paper regi.
Paper curl detectionDetects paper positi
Face down tray jam detectionDetects exit jam
Face down tray paper full
MPF media size detectionDetects MPF paper
MP media size detection
(Long media)
Detects MPF paper
MPF clutchMPF driving control
Duplex clutchDuplex driving contr
Duplex jam detection 1Detects duplex jam 1
Exit tray 2 paper full detectionDetects exit tray2 pa
MPF Paper empty detectionDetects MPF paper
Tray1 Lift MotorLifting knock up plat
Tray2 Lift MotorLifting knock up plat
CN18@ Engine PBA, 3PIN
izeCN7 @ SIDE JOINT PBA, 3PIN
izeCN7 @ SIDE JOINT PBA, 3PIN
17Roller 2
18Sensor fuser in
19Roller fuser
20Sensor fuser out
transfer
3
13
8
21Roller exit
22Roller face down exit
4
23Actuator face down bin
24Sensor duplex return
25Roller duplex return
Service Manual
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d
d
2.4.2 Functions
Pickup Roller (paper tray and bypass feed)
o
Retard Roll
d)
d
e
d
yg(ppyyp
e
a
e
This sensor detects whether paper is set in the bypass
o
a
d
c
FeedSensor
e
r
r
2
)
tray
When it is, bypass feeding always comes
2. Product
escription
This section describes the functions of the paper han
This roller moves up and down and draws out the pap
the feed roller.
Forward Roller (paper tray and bypass feed)
This roller is placed against the retard roller. It transp
transport roller.
er (paper tray and bypass fee
This roller is placed against the feed roller. When two
pickup roller, the load of the torque limiter of the retar
sheets. As a result, the retard roller is stopped and th
only one sheet is transported from the pickup roller, th
roller.
Conveying Roller (paper tray and bypass fee
This roller transports the paper sent from the feed roll
Registration Roller
Paper transported from the transport roller is pushed
edge of the paper. Then, the registration rollers rotat
ling components.
er from the bypass tray or drawer and transports it to
rts the paper from the pickup roller to the
sheets of paper or more are transported from the
roller is heavier than the frictional force between the
lower paper does not advance any further. When
e retard roller rotates following the feed
r to the registration roller.
gainst the registration roller which aligns the leading
to transport the paper to the transfer unit.
Bypass Paper Sensor
before drawer feeding.
Empty Sensor (Tray 1 / Tray 2)
This is a transmissive-type sensor and it detects the a
When there is no paper in the drawer, the actuator bl
determines that there is no paper.
Paper Stock Sensor
This is a transmissive-type sensor which detects the
actuator. When the remaining paper is consumed an
blocks
the light path for the transmissive-type sensor to dete
This sensor detects if the leading edge or trailing edg
detects jamming such as missfeeding.
Registration Sensor
This sensor detects that the leading edge of the pape
trailing edge of the paper has passed the registration
.
vailability of paper in the drawer by using an actuator.
cks the light path of the sensor, and the sensor
mount of remaining paper in the drawer using an
approximately 100 sheets remain, the actuator
t that there is less paper.
of the paper has passed the feed roller. It also
has reached the registration roller and that the
oller.
Service Manual
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Page 41
d
2.4.3 Paper tray
e
p,pp
A
m
•
Paper
:
7
s
o
2
2. Product
escription
The paper trays consist of the Main trays, Optional tra
The MP tray is located on the right side of the machin
envelopes, and custom size paper.
Paper size is set using the Size Guides in each tray.
paper size.
ys (DCF,HCF), and one Multi-Purpose (MP) tray.
and allows feeding of specialty media stock,
djust the Front, Rear, and End Guides to match the
Specification
• Structure : Paper tray Type, Auto Paper Size
• Capacity : 520 Sheets ( 80g/㎡ standard Xerox Pre
When the by-pass paper detection [A] sensor detects
the by-pass solenoid [B] drops the pick-up roller [C] o
After that, the pick-up roller moves one
sheet of paper to the feed roller.
This machine uses an FRR (Feed and
Reverse Roller) system for feeding paper.
There is friction between the feed roller [E]
and retard roller [D]. This friction separates
the top sheet of paper from the stack.
reminum )
3.87”×5.8” (98×148㎜)
X-9252NA) in Letter/A4 LEF (Long Edge Feedin
EF, A4 SEF, A5 LEF, B4 B5(JIS) LEF, 11x17,
paper and the machine gets a by-pass printing job,
to the top of the paper stack on the by-pass tray.
Service Manual
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2.5 Image creation
v
e
M
a
a
b
of a Drum unit and Development unit
Each Drum unit
n
d
g
o
iti
s
h
h
e
e
p
r
3
r
C
a
has an OPC drum, Charge
Scorotron
Eraser and
[E]
2. Product
escription
This section describes the image creation process us
2.5.1 Printing process ov er
This color printing system includes the LSU with four l
unit. The 4 imaging units are: Yellow, Magenta, Cyan
d by the printer.
iew
Paper path
ser beams, four imaging units, ITB unit and transfer
nd Black (from left to right as shown in the diagram).
This machine uses four Imaging units, and four laser
.
Cleaning blade. From the left, the Imaging unit statio
The OPC drum [A] is charged with a negative voltage
from the LSU (Laser Scanning unit) [B]. The light pro
discharging on the surface of the OPC drum. The ne
image due to an electric field. The toner (real image)
the positive bias applied to the first transfer roller [C].
paper by a pos
Process Steps
1. OPC drum charge: The Charge Scorotron gives t
2. Laser exposure: Light produced by a laser diode
3. Development: This machine uses a dual-compon
negatively charged toner to the latent image on th
imaging units (one for each color).
4. Transfer:
a. First transfer: The first transfer rollers op
the transfer belt. Four toner images are supe
ve charge applied to the second tran
eams for color printing. Each Imaging unit consists
s are: yellow, cyan, magenta, and black.
by the Charge Scorotronand is exposed by the light
uced by the laser creates a latent image by
atively charged toner is attracted to the latent drum
n each OPC drum is moved to the transfer belt by
All four toners (color image) are transferred to the
er roller
e drum a negative charge.
its the charged OPC through the lens and mirrors.
nt development system. The magnetic roller carries
drum surface. This machine uses four independent
osite the OPC drums transfer toner from the drums to
-imposed onto the belt.
.
,
b. Second transfer: The transfer roller transfe
Service Manual
s the toner from the transfer belt to the media.
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SAMSUNG ELECTRONICS
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2. Product
d
b
a
v
D
n
s
p
pg
o
3
escription
5. Cleaning for OPC drum: The cleaning brush and
after image transfer to the paper.
6. Quenching for OPC drum: Quenching is done by i
at the end of every job.
7. Cleaning and quenching for transfer belt: The cle
grounding roller inside the transfer belt unit remo
lade remove remaining toner on the drum surface
lluminating the whole area of the drum with the laser
ning brush and blade clean the belt surface. The
es the remaining charge on the belt.
8. ID sensors: The ID sensors detect the density of I
sensors for the line position adjustment (front, ce
[A]: Line position adjustment (front)
[B]: Line position adjustment (center) & proce
[C]: Line position adjustment (rear)
[D]: Humidity Sensor (Internal).
The ID sensor out
ut is used for the following:
- Process control and for automatic line positi
- Skew correction
- Color registration adjustments for the latent i
sensor patterns on the transfer belt. Three ID
ter, and rear) and process control.
s control
n
mage.
2-
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Page 47
d
2.5.2 Imaging unit
e
b
r
g
b
o
u
u
C
3
2. Product
escription
2.5.2.1 Imaging unit ov ervi
Each Imaging Unit consists of the OPC drum unit and
OPC drum, Charge Scorotron, Eraser, and Cleaning
two mixing augers, developer, and a TD sensor. Fou
(drum unit, development unit, etc.), however, the Ima
The diameter of the drum is 30 mm (circumference: a
The developing gap between a drum and the corresp
they are assembled as one Imaging unit at the factory
The cleaning blade removes excess toner from the dr
The CRUM chip in the image unit stores the data abo
OP
Magnetic Roller
w
the development unit. The OPC drum unit has an
lade. The development unit has a magnetic roller,
color Imaging Units contain identical components
ing Units are not interchangeab le.
out 94.2 mm).
nding magnetic roller cannot be adjusted becaus e
.
m surface after image transfer to the transfer belt.
t the Imaging unit.
Drum
Cleaning blade
Eraser
harge scorotron
Mixing Auger
Service Manual
C
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SAMSUNG ELECTRONICS
Page 48
d
2.5.2.2 Drum drive
o
Y
e
Phase sync for each OPC
runout
prints the pattern on
K
D
C
3
r
the ITB and is adjusted by the data automatically
r
BLDC motor
2. Product
escription
Each color OPC and Mag Roller is driven by each col
Drive transmission gear
Drum phas
Coupling
Drum-Y
Drum-M
r motor.
senso
M Drum phase senso
C Drum phase sensor
.
K Drum phase sensor
rum-
Coupling OPC
Coupling Deve
Drum-
Drive motor BLDC
Gear-Drive OPC
Service Manual
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2. Product
d
h
t
o
m
b
g
q
a
A
2.5.2.4 D
t
n
e
n
e
m
3
Mixing
Sensor
[B]
[]gg
escription
2.5.2.3 Phase Control Mec
The printer uses the drum gear position sensors to de
mode shows when it detects that the drum motor is n
initialize the relative positions of the gears when the
prevents phase fluctuation between printouts caused
There is an interrupter on each drum gear. The drum
interrupters. This mechanism makes sure that outp ut
Immediately after the printer power turns on, recovers
opened and closed, the printer executes the drum ph
occurs:
• When a new imaging unit is installed.
• When a new cartridge transfer belt unit is installed.
lso, when the printer detects a shift in the drum posit
executes the drum phase adjustment.
evelopmen
anism
ect whether the drum motors are rotating. Diagnostic
t moving. These sensors also help the printer to
ain switch is turned on, and during initializing. This
y incorrect gear meshing at the start of the job.
ear position sensors detect the positions of these
uality does not vary.
from the energy saver mode, or the front door is
se adjustment if one of the following conditions
ions during the line position adjustment, the printer
[A] Developme
This printer uses a dual-component development syst
the drum units; one for each color). Each new unit co
in each unit is supplied to the magnetic roller [A] by th
surface of the roller. The diameter of the magnetic rol
t Roller
[C] TD
Mixing Auger
m and has four imaging units (which are included in
tains 330g of magnetic toner carrier. The developer
two mixing augers [B] and is attracted onto the
ler is 18 mm.
[B]
Auger
Each imaging unit has a TD(Toner Developer) sensor
controlling the operating range of toner density. The i
information about the imaging unit is stored.
Service Manual
[C]. The TD sensor [C] in the imaging unit is used for
aging unit is equipped with a CRUM in which some
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SAMSUNG ELECTRONICS
Page 50
2. Product
d
d
h
h
3
escription
Two mixing augers [A] circulate the developer forwar
mix the developer and toner well.
This occurs at the following times:
• During TD calibration
• During development.
Filters [B] on the top of the development unit ensure t
During the operating, this prevents contamination of t
[B] Filter
and backward to agitate the developer in order to
at the internal pressure does not become too high.
e imaging unit by the toner.
[A] Auger
2-
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2. Product
d
u
s
a
th
iti
is
e
o
8
Paper Transfer Ro
A
3
escription
2.5.3 Cartridge Transfer un
2.5.3.1 Cartridge Transfer
The toner is moved from the four drums to the ITB by
rotation of the ITB (four toner images are super-impo
drums on the diagram shows the direction of ITB rotat
toner image from the transfer belt to the paper. The p
in the transfer unit cleans the belt surface with the cle
collected from the belt is transported to the toner colle
em are for the line pos
6
on adjustment. The other
4
1
2
it
nit overview
the four image transfer rollers. This is done with one
ed onto the belt). The arrow above the C and M
ion. The ITB drive roller then moves the four-colo r
aper transfer roller is an idle roller. The cleanin g unit
ning blade and tension roller. The used toner
ction bottle. There are three ACR sensors. Two of
for process control.
7
3
8
YM
CK
5
9
1
2
3
4
5
6
7
9
Image Transfer B
Image Transfer R
ITB Drive Roller
Tension Roller
Rotation Encoder
Cleaning Blade
ACR Sensor
Toner Collection
lt (ITB)
ller
uger
Service Manual
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Page 52
2. Product
d
3
2.5.3.2 T ransfer belt driv e
escription
The ITB drive motor [A] drives the image transfer belt
drive roller [C]. The speed of ITB drive depends on th
[B] and the Cleaning unit by using gears and the ITB
e process line speed.
[B]
[A]
[C]
2-
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SAMSUNG ELECTRONICS
Page 53
2. Product
d
n
a
iti
lt
T
t
C
3
t cl
hile the i
t
escription
2.5.3.3 T ransfer belt c leani
The ITB-cleaning unit removes toner (during printing)
or automatic line pos
makes one rotation. The ITB drive motor drives the I
The cleaning blade [A] in the cleaning unit always con
toner from the belt. Then the toner collection auger [
container.
The Film [D] on the Cleaning Unit protects against ton
roller is transferred to the tension roller [E]. The Gear
on adjustment) on the belt. Be
[E]
[D]
g
nd the ACR sensor patterns (during process control
eaning is completed w
B-cleaning unit.
acts the image transfer belt [B], and removes used
] transports the toner towards the waste toner
er contamination. The driving power from the drive
[F] drives the Gear [G].
[B]
mage transfer belt
[C]
[A]
[F]
[C]
[G]
[E]
Other Side
Service Manual
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d
2.6 Fuser unit
d
u
l
2.6.1 Fuser unit overview
h
m
p
c
4
Halogen Lamp
2. Product
escription
This section describes the image fusing process use
A belt fusing system is used. This has a faster warmsystem.
The heating roller is made of a thin steel pipe to quick
fusing roller and pressure roller are made of soft silico
nip. These rollers do not contain a fusing lamp. The
center heating lamp, heats the center and the other la
direction). NC sensors (non-contact type thermistors)
heating roller, control the temperature of the fusing be
ends, respectively.
Two NTC thermistors and two thermostats, located at
system from overheating by the heating lamps. Tem
the center heating lamp and side heating lamp, respe
temperatures.
by the printer.
p time than a conventional fusing and pressure roller
y increase the temperature of the fusing belt. The
ne rubber, which flatten slightly, increasing the fusing
eating roller contains two fusing lamps (one lamp,
p, side heating lamp, heats the ends in the axial
, located near the center and the rear end of the
lt just above the heating roller at the center and the
the center and the front end, protect the fusing
erature is normally controlled by turning on and off
tively, corresponding to predetermined target
Pressure Roller
Service Manual
Fuser Ro
2-
Fusing Belt
Heat Roller
Thermistor
(0.5mm-1.0mm
distance)
Thermostat
ller
NC Sensor
0
SAMSUNG ELECTRONICS
Page 55
2. Product
d
t
L
a
e
g
h
Thefuserbeltcouplestheheatrollerwiththefuserro
h
r
t
belts easier
The melted toner is soaked into the pap
p
e
h
h
4
conductsheatfromtheheatrollertothefuser
improve the fusing ability, a fuser roller with
escription
2.6.2 Fuser unit componen
The Fuser unit includes the following components:
1. Center heater lamp (LAMP1) / Side heater lamp (
These halogen lamps heat the heat roller. The cente
(LAMP2) are lit alternately to heat the heat roller. E
coil of the center heater lamp (LAMP1) is in the cent
sides. The heater lamps are fixed inside of the heat
2. Heat roller
The heat roller is a steel roller which cond u cts heat
heat roller in this equipment is a thin roller which en
time is shortened.
3. Fuser belt
roller and paper. The thin fuser belt reduces warmin
fuser belt from adhering to the toner, the surface of t
4. Fuser roller
s
AMP2)
r heater lamp (LAMP1) and the side heater lamp
ch heater lamp has its coil in a different location. The
r, those of the side heater lamp (LAMP2) are on both
roller so that they will not rotate separately.
enerated by the heater lamp to the fuser belt. The
ances heat conduction, and thus the warming-up
It
g up time and mode changing time. To prevent the
e fuser belt is fluorinated.
The fuser roller is pressed against the pressure rolle
between the fuser roller and pressure roller, the hea
.
soft rubber is employed to expand the nip width.
5. Pressure roller
The pressure roller is a rubber roller which ensures
roller / fuser belt, and it is pressed on the fuser roller
effectively to the paper.
6. NC sensor
NC sensors detect the surface temperature of the ce
which controls the heater lamps.
7. Thermostat
These thermostats cut off the power supply to the h
becomes abnormally hot as a result of problems suc
are used to prevent abnormal operation. When the t
the other damaged parts in the fuser unit).
with the fuser belt in-between. By this pressure
conduction to the paper is enhanced so that toner
. To
roper nip width between the pressure roller and fuser
/ fuser belt by springs in order to fuse toner
nter and the rear end of the fuser belt/ heat roller
ater lamps by opening the circuit when the fuser belt
as a NC sensor malfunction. These thermostats
ermostat is triggered, it must be replaced (as well as
Service Manual
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Page 56
d
2.6.3 Fuser unit drive
fuser belt [E]
E
4
2. Product
escription
The fusing/paper exit motor [A] drives the fuser roller [
driven by pressure with the fuser belt [E] and roller [C]
.
Fuser Belt [E]
Heat Roller [D]
C] through the gear train. The pressure roller [B] is
. The heat roller [D] is driven by pressure with the
xit Motor [A]
Fuser Roller [C]
Service Manual
Pressure Roller [B]
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SAMSUNG ELECTRONICS
Page 57
2. Product
d
detect the standby temperature
Then the CPU raises
s
g
e
s
e
h
4
the temperature up to the printing temperature
2.6.4 Temperature control
escription
When the main switch turns on, the CPU turns on the
.
NC Sensor2
NC Sensor1
Thermo
fusing lamp. The lamp stays on until the NC sensors
.
Lamp 1(700W) :
Center heating
tat 1Thermostat 2
Lamp 2(600W) :
Side heating
Overheat Protection
The CPU cuts power to the fusing lamp in the followin
• The heating roller temperature detected by the NC s
The following components are destroyed when thermi
• Two thermostats for the heating roller get into line wi
• If one of the thermostat temperatures becomes high
lamp. If the other thermostat temperature becomes
the fusing lamp.
cases:
nsors becomes higher than 198℃.
tor overheat protection fails:
th the common ground line of the fusing lamp.
r than 170°C, it opens and cuts power to the fusing
igher than 170°C, it also opens and cuts power to
Service Manual
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Page 58
2. Product
d
O
s
o
PBA on right side.
1
4
1
2.7 Laser Scanning Unit
escription
2.7.1 Laser Scanning Unit
The Laser Scanning Unit (LSU) consists of 2 polygon
the surface of 4 OPC drums. For this process, there i
reflective mirrors on optical path for each color. K Col
the front, C Color and Y Color scan the laser beam fr
adjustment function which adjusts the scanning line m
protect the glass on the LSU surface from contaminati
5
C: Scan direction
7
verview
motors and 2 LD units and forms a latent image on
a collimator lens, cylindrical lens, 2 F-Theta Lens, 3
or and M Color scan the laser beam from the rear to
m the front to the rear. Also, the LSU has a skew
anually and the shutter & shutter driving device to
on. To interface with the printer, the LSU has a joint
Y: Scan direction
6
K: Scan direction
KCM
3
4
Service Manual
M: Scan direct
232
2-
ion
4
1LD PBA
2P/Mirror Motor
3F1 Lens
4F2 Lens
Y
5
3
5Skew Adjust
6
Assy
6Shutter &
Shutter Drive
Motor Assy
7LSU Temp PBA
SAMSUNG ELECTRONICS
Page 59
2. Product
d
a
t
t
Process Speed
115 mm/sec
4
t
161 mm/sec
escription
2.7.2 Laser Scanning Optic
KCM
[A]
[C][D][D][C]
The laser beam from the LSU is placed at intervals of
polygon motors. F2 Lens [A] determines the slope of
the secondary scanning direction. This is adjusted at
SET difference is adjusted by Skew adjustme n t in the
the primary scanning. The LSU has 2 types dependin
printer models is shown in the table below:
l path
Y
104mm for each color. All colors use the same
he primary scanning line and the image position of
he factory. The primary scanning line slope by the
LSU. Reflecting mirrors [C], [D] for each color adjust
g on printing speed. The difference between the two
Mode CLX-9252NA(25ppm)
LD Unit
P/Motor speed19,016 rpm
H/W interface
Service Manual
Laser Diode : Single Beam
driving IC : for Single LD
KC Harness : 28 Pin
MY Harness : 24 Pin
CLX-9352NA(35ppm) Remarks
Laser Diode : Dual Beam
driving IC : for Dual LD
27,165 rpm
KC Harness : 34 Pin
MY Harness : 32 Pin
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SAMSUNG ELECTRONICS
Page 60
2. Product
d
d
B
optics
housingunit.ThefourBDboardsdetectthefol
h
n
[C
4
[D]
escription
2.7.3 Laser synchronizing
The machine has four beam detector sensor boards (
-
•[A]: Scanning start position for black
•[B]: Scanning start position for cyan
•[C]: Scanning start position for magenta
•[D]: Scanning start position for yellow.
The printer recognizes each color from the time that t
Main Scan Start Detection
4 beams are detected by the BD PBA at the scanning
signal. The following diagram shows the data scanni
Cyan (& Yellow) use the same polygon motors scanni
etectors
D PBA). There is one at each corner of the laser
ey are detected.
start point and create the horizontal sync (Hsync)
g direction for each color. Black (& Magenta) and
ng in opposite directions.
[A]
Service Manual
[B]
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SAMSUNG ELECTRONICS
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2. Product
d
o
p
p(,,,,,,
c
K
C
e
4
)
)y,,
r
K
escription
2.7.4 Automatic line positi
During automatic line position adjustment, line pattern
aces between the lines (KK, CC, MM, YY, KC, KM,
s
sensors. The controller takes the average of the spa
magnification:
• Sub scan line position for CMY
• Main scan line position for CMY
• Magnification ratio for CMY
• Skew for CMY
The transfer belt-cleaning unit cleans the transfer belt
Front
K
KC
n adjustment
s are created eight times on the transfer belt. The
are measured by the front, center, and rear ID
KY
es, then adjusts the following positions and
after the patterns are measured.
ente
K
Rear
CC
KM
MM
KY
YY
KK, CC, MM, YY: Spaces betwe
KC, KM, KY: Spaces between a
C
C
M
M
Y
Y
n two lines of the same color.
black line and each color line.
2-
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2. Product
d
M
a
C
i
2.7.4.3 M
ification Adjust
t for
n
function
e
∆
g
t
s
Line position adjustment is automatically performed wh
h
4
s
all conditions below are satisfied
escription
2.7.4.1 Sub Scan Line Position for C
The adjustment of the sub-scan line position for CMY
The printer measures the gaps between the lines of e
gaps for a color are not correct, the printer moves the
do this, it changes the laser write timing for that color.
2.7.4.2 Main Scan Line Position for
When the printer detects that the image is out of posit
write start timing for each scan line.
agn
When the printer detects that magnification adjustme
the required color.
men
2.7.4.4 Skew for CMY
The adjustment of the skew for CMY is based on the l
Y
is based on the line position for K (color registration).
ch color in the pattern on the transfer belt. When the
image of the color up or down the sub scan axis. To
MY
on in the main scan direction, it changes the laser
t is necessary, it changes the LD clock frequency for
ine position for K.
2.7.4.5 Adjustment Conditions
Line position adjustment can be turned on or off. How
.
Line position adjustment timing depends on several s
•∆t = Elapsed Time.
T = Temperature change of LSU (Laser Scannin
•
•position adjustment and the current tempera
•Pages = Total printed pages after previous line po
2.7.4.6 Initial Adjustments
Line position adjustment starts automatically after war
printer recovers from energy saver mode.
•∆t (Elapsed Time after previous job) > Time thres
•∆T > Temperature threshold (LSU temp. : 4 ℃)
ever, it is normally recommended to turn on this
ttings. These settings include the following:
Unit) between the temperature of the previous line
ure.
ition adjustment.
ming up when the power is turned on, or when the
old (default: 3 hours)
.
Service Manual
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2. Product
d
t
∆
d
n
a
e
a
n
e
Th
[A] f
[
4
[B]
2.7.4.7 Interval During Print Job
escription
Line position adjustment interrupts printing and then s
occurs when the machine checks at the sheet interval
when one of these conditions occurs:
•
T > Temperature threshold (LSU temperature: [
•Pages > Output threshold for all outputs (default:
2.7.4.8 Waste Toner Container Not-I
Line position adjustment starts automatically when wa
triggered after removing the Imaging Unit or when ch
new Imaging Unit, line position adjustment is automati
2.7.4.9 Printer Magnification Chang
Line position adjustment starts automatically when m
2.7.4.10 Main Scan Skew Adjustme
arts automatically when one of these conditions
. Line position adjustment is automatically done
efault: 4°C])
1000 pages)
stalled / Installed
ste toner container is not-installed/installed. This is
nging Imaging Unit. When the machine detects a
cally performed.
s
gnification is changed in the printer adjustment menu.
t
Skew adjustment assembly [A] consists of the worm g
detects and adjusts the scanning line slope manually.
e skew adjustment assembly
respectively, based on the adjustment part[3]. This me
or magenta, cyan,
ar[1] and worm gear[2]. When executing ACR, it
and yellow adjusts the angle of the F2 lens
chanism corrects main scan skew.
3]
[A]
[1]
[B]
[2]
Service Manual
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2. Product
d
e
v
the idle gear [C] (open = black arrow direction, close =
a
e
n
[D]
o
p
r
5
white arrow direction)
[B]
2.7.5 Shutter Mechanism
escription
The laser optics housing unit is equipped with a shutt
of the laser optics housing. The shutter motor [A] mo
When detecting the printing job, the drive motor [A] sp
the idle gear moves from the photo sensor [D] and m
job is finished, the drive motor [A] works until the rib b
and the shutter is switched off.
•Shutter on: Shutter door is opened for Printing a
photo sensor
•Shutter off: Shutter door is closed and the rib bel
When there is no printing job, the shutter is off and a
not on at printing, the “LSU Unit Failure #U2-5113: Tu
.
r. As a result, toner and dust do not fall on the glass
es the shutter [B] in the direction of the arrow with
ins and it turns the idle gear [C] drive. The rib below
kes the shutter move to position. When the printing
low the idle gear [C] blocks the photo sensor [D]
d the rib below the idle gear [C] does not block the
w the idle gear [C] blocks the photo sensor [D].
rinting job cannot be executed. When the shutter is
n off then on” error message will display.
.
[A]
Service Manual
[C]
[ Shutter open ]
[D]
[ Shutter closed ]
2-
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SAMSUNG ELECTRONICS
Page 65
2. Product
d
a
2.8.1 Drive Motors
6
Left
5
y
2.8 Printer Drive system
escription
This section describes the printer drive system parts
The following diagram displays the locations of the pri
1
2
Side
10
3
nd process.
nter drive motors.
4
5
5
The following table list the descriptions for the tagged
No.ITEMType
1Duplex ReturnHB-STEP
2Fuser / Exit
BLDC
PM-STEP
7
drive locations.
Qt
1Return driving at Duplex
1Fuser / Exit driving
1Fuser pressure Mode
9
8
Function
Service Manual
2-
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Page 66
2. Product
d
E-CLT
E-CLT
7
ITB
BLDC
10
T2 Dis/Eng
DC
5
2
MP / Dup driving control
2
Pick-Up 1,2 driving control
1
ITB
1
T2 Dis
/Engage
escription
No.ITEMType
HB-STEP
3MP/DUP
4Regi.HB-STEP
HB-STEP
5Pick-Up
6
Toner supply
gear box
DC
DC
OPC / DEVEBLDC
T1 Dis/EnPM-STEP
QtyFunction
1
MP / Dup / F-up driving
(return driving at F-up)
1Regi. Roll driving
1Pick-Up Roll driving
2CST Lift
4
Toner transfer in Toner Bottle
driving Duct
4OPC/DEVE
1
T1 Dis/Engage
8LSU ShutterPM-STEP
9
Waste Toner
Container
PM-STEP
1LSU shutter driving
1Waste Toner Container leveling
Service Manual
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2. Product
d
s
r
5
/Engag
gg
escription
2.8.2 Main drive unit (OPC,
Front View
Rear View
DEVE, ITB, T1 DIS/ENG)
OPC Coupling
Deve (Auger)
Coupling
T1 HV
T1 Di
Coup
MagR HV
Sco
ITB CouplingITB Connector
e
ling
Grid HV
otron HV
Imaging unit
Connector
Information
Service Manual
SEC-CODE : JC93-00044B
Part Name : DRIVE-MAIN
2-
3
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Page 68
2. Product
d
r
t
H-Step
Belt
Pulley Gear
Gear
E-C
5
Pick-up
Pick
up 1 driving
2.8.3 Pick-up Driv e
The following is a diagram of the Pick-up drive:
Mic
Clu
escription
o-
ch
Feed
Coupling
Feed
Power TrainPick-up drive : Same H-Step
Gear
Pick-up
Information
SEC-CODE : JC93-00065B
Part Name : DRIVE-PICK UP
motor is raising 2 tray by e-clutch
-
Feed 1 driving
Service Manual
GearGear
Feed 2 driving
2-
4
GearE-ClutchPick-up 2 driving
SAMSUNG ELECTRONICS
Page 69
2. Product
d
D
e
lReg
Information
--H
Step
Belt
Pulley Gear
Regi. driving
e
5
escription
2.8.4 MP, Regi, and Duplex
The following is a diagram of the drives that power th
Dup
rive
MP, Regi, and Duplex systems:
ex Drive
i Drive
SEC-CODE : JC93-00066B
Part Name : DRIVE-MP REGI
Power Train
H-Step
Regi drive .: 1 H-Step drives
Duplex and MP drives : 1 H
BeltPulley Gear
Pulley Gear
E-Clutch
MP Drive
independently.
Step rising by E-Clutch
MP driving
B
lt
Pulley Gear
E-Clutch
DUP driving
Service Manual
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Page 70
2. Product
d
x
e
t
B
i
X
u
5
t
escription
2.8.5 Fuser Exit and Duple
The following diagram displays the locations of the Fu
Exit Drive
HB-S
Dupl
Return Drives
ser and Duplex Return drives:
ep
x Return Drive
LDC
Fuser Drive
Information
SEC-CODE : JC93-00057B
Part Name : DRIVE EXIT
Power Train
1. BLDCFUSER A/BFUSER IDLE B
EXIT RDCNEXIT IDLE AE
2. H-StepDUP RDCN
Service Manual
Fuser/Exit : BLDC is interloc
Duplex Return : HB-Step is
Duplex Ret
ked.
nterlocked.
FUSER IDLE AFUSER
IT IDLE BExit Roll driving
rn driving
2-
6
Fuser driving Roll
SAMSUNG ELECTRONICS
Page 71
2. Product
d
U
A
U
T
5
Step (PM)
Worm
GEAR WTB RDCN
r
Part Name : DRIVE
WTB
GEARWTBIDLEA
WTB Leveling driving
2.8.6 LSU Shutter Drive
escription
The following diagram displays the location of the LS
Worm (PM Step)
GEAR SHUTTER IDLE A
GE
Power TrainPM Step motor & Worm : LS
Step (PM)WormGEAR SHUTTER IDLE A
Shutter drive assembly:
Position control senso
Information
SEC-CODE : JC93-00068A
Part Name : DRIVE-LSU SHUTTER
R SHUTTER IDLE B
Shutter driving
GEAR SHUTTER IDLE B
LSU Shutter Driving
2.8.7 WTB Leveling Drive
The following diagram displays the WTB Leveling driv
GEAR WTB RDCN
WTB Gear
GE
Power TrainPM Step motor & Worm : W
e:
Information
SEC-CODE : JC93-00067A
-
Worm (PM Step)
AR WTB IDLE A
B Leveling driving
Service Manual
2-
7
SAMSUNG ELECTRONICS
Page 72
2. Product
d
5
2.8.8 Toner Supply Drive
escription
The following photo displays the location of the Toner
Information
SEC-CODE : JC31-00124A
Part Name : MOTOR GEARED-T_SUPPLY
Supply drive:
Bottle Coupling
Duct Coupling
2-
Service Manual
8
SAMSUNG ELECTRONICS
Page 73
d
2.9 Scanner system
t
2.9.1 S
e
r
c
h
s
5
2. Product
escription
This section describes the printer scanner system par
canner System Over
During the scanning process, the surface of a docum
The light reflected from the paper is led through mirro
electrical conversion is performed, converting the opti
This analog signal is changed to a digital signal, whic
necessary for image formation. After that, arithmetic o
then transmitted to the data writing processor.
In this machine, a reduction-type CCD for color proce
with color filters (Red, Green, and Blue).
DADF GlassGlass-Scan
s and processes.
view
nt is exposed to Full Rate(FR) module light.
s, a lens, and a slit to a CCD where optical-to-
al image data into an electrical (analog) signal.
then undergoes various corrective processes
perations are performed on the digital signal, which is
sing is used. CCD is arranged in 3 lines and covered
FR moduleLensCCD Board
Service Manual
HR module
Auto Paper Sensor Driving Pulley
2-
9
SAMSUNG ELECTRONICS
Page 74
2. Product
d
m
t
1. DADF gl
h
a
WLED
o
E
g
c
6
g
escription
2.9.2 Scanning System Co
The following shows the construction and purpose of
ass
The DADF glass is used when a docu me n t is read by
White-LED is illuminated on the Document through thi
The document is transported on the DADF glass by th
Do not use such solvents, as alcohol when cleaning t
to be scratched by Document.
2. FR(Full Rate)-Carriage
FR-Module is consists of the White-LED , Light-Guide
It is driven by the scan motor (HB Step Motor) and sc
ponents
he scanning system:
the Automatic Document Feeder. The light from the
s glass.
e DADF operation.
e surface of the DADF glass, as it is coated so as not
, mirror-1 etc.
ns the document on the glass.
LightGuide
•White-LED
This is a light source for scanning the document
Rear 2 EA)
•Light-Guide
This is to efficiently transfer the light creating WL
transparent Plastic Regin.
•Mirror-1
This mirror directs the li
Service Manual
ht reflected from the Do
Mirro
r-1
n the glass. ( There are 4 White-LEDs. (Front 2 EA,
D to the surface of the document . made of the
ument to the mirror-2
2-
0
SAMSUNG ELECTRONICS
Page 75
d
3. HR(Half Rate)-Carriage
e
H
e
t
Mirror
3
a
Th
tly
6
2. Product
escription
HR-Module mainly consists of the mirror-2, mirror-3,
the mirror-1 through the mirrors-2 and -3 to the lens.
of the FR module.
The speed and distance are half that of the FR modul
Mirror-2
-
4. Lens
The light reflected from the mirror-3 is concentrat ed
CCD is aligned accurately.
tc. The reflected light on document is passed from
R module is driven by the same scan motor as that
.
o the CCD. The distance between the Lens and
5. CCD board
Processes such as signal amplification, signal integr
electrical signal which was converted by the CCD.
6. Auto Paper Sensor
e size of an original placed on the glass is instan
Align-frame.
7. Pulley-Driving
The Steel Wire is coiled to this part and rotated by th
the FR/HR module.
tion, and A/D conversion are applied on the
detected using the Auto Paper Sensor fixed on the
e scan motor. This also transfers the power to move
Service Manual
2-
1
SAMSUNG ELECTRONICS
Page 76
2. Product
d
u
e
o
e
gstee
a
e
n
R5
Original document tray
Paper input
u
r
6
R6
edge of the pape
tray
escription
2.10 Duplex Automatic Doc
This section describes the DADF system parts and pr
2.10.1 D ADF System Ov ervi
The following diagram and table include locations and
R1
R8R9
R2R4
R3
R7
ment Feeder(DADF) System
cesses.
w
descriptions of the DADF system.
R5
Simplex Path
Duplex Path
SymbolPart NameFunction
R1
R2 Forward roller
R3 Retard PadPrevent th
R4Pick up rollerPicks up a
R6 Exit trayPaper outp
R7 Exit roller
R8Feed in roller Feeds an o
R9 Feed out roller Transfers a
Simplex & Duplex
registration roller
Aligns the l
Separates
paper path.
Sends an o
reverse pat
ing
n original from the tray and transfers it to the
multi-feeding.
original from the tray.
.
t tray
riginal to the exit tray and forms the duplex
h.
iginal before scanning.
scanned original to the exit roller.
r for registration.
Service Manual
2-
2
SAMSUNG ELECTRONICS
Page 77
2. Product
d
S2
Ref.
Description
S7
6
S11
PBA-WIDTH SENSOR
PartCode
ControllerBoard
0604-001393
PBA-ADF
JC92
02167A
PBA-ADF
2.10.2 Electric parts lay out
escription
The following diagram and table include locations and
S1
S3
S8
S4
S9
S10
descriptions of the electrical components of the DADF.
S5
S6
S7
S1
S2
S3
S4
S5
S6
S8BLCD MOTOR
S9
S10
PHOTO-INTERRUPTER
(Cover)
PHOTO-INTERRUPTER
(Regi)
PHOTO-INTERRUPTER
(Detect)
PHOTO-INTERRUPTER
(Exit Idle)
PHOTO-INTERRUPTER
(Paper Length)
PHOTO-INTERRUPTER
(Paper Width)
PHOTO-INTERRUPTER
(Exit)
CLUTCH-ELECTRIC
{ Pick Up}
CLUTCH-ELECTRIC
(Regi)
0604-001415PBA-ADF
0604-001393PBA-ADF
0604-001393PBA-ADF
0604-001393PBA-ADF
0604-001393PBA-ADF
0604-001393PBA-ADF
0604-001393PBA-ADF
0604-001393PBA-ADF
0604-001393PBA-ADF
-
Service Manual
2-
3
SAMSUNG ELECTRONICS
Page 78
2. Product
d
Pick
DADF
f
d
n
x
6
up clutch section
2.10.3 D ADF Driv e System
Regi clutch section
escription
DADF motor drive section
consists of one motor and two clutch to trans
• A BLDC motor drives the system for simplex and
• The Pick up and Regi clutch controls the driving o
• The Cam type gear and solenoid is used for duple
er the paper.
uplex job.
/off.
reverse.
Service Manual
2-
4
SAMSUNG ELECTRONICS
Page 79
2. Product
d
s
U
P
A
e
s
e
ected by the
TheADFrollerandPickupRollerisconnectedbythe
a
a
clutch work
e
p
6
y
belt.
escription
2.10.3.1 DADF Original Drive As
CLUTCH-ELECTRIC
GEAR-PICKUP_IDLESHAFT-PICKU
fter detecting the paper, one motor controls the driv
The CLUTCH-ELECTRIC provides the power to pick
DADF-G
embl
IDE PICK UP ASS’Y
system totally.
up the paper.
The CLUTCH can’t rotate inversely. The Spring that i
to COVER-OPEN. When the CLUTCH does not drive
Th
ADF roller and Pick up Roller is conn
The ADF roller is provided with the power while the p
roller. When the pick up drive is stopped and Registr
The normal process is :
• When the original is setting up, the detect-sensor is
.
Then, the pick-up roller moves down and contacts an
• When the Registration sensor detects the paper, th
• When the Detect-Sensor detects that the tray is em
status.
included in DADF-GUIDE PICK UP ASS’Y is connected
, it makes Stand-by status and fix the stopper operation.
belt.
per is picked up and transferred to the Registration
tion roller is driven, the ADF roller become idle.
activated, and printing job starts, the motor and pick up
original in the tray.
pick up clutch stops.
ty, the motor stops and the machine enters stand-b y
Service Manual
2-
5
SAMSUNG ELECTRONICS
Page 80
2. Product
d
a
ROLLER
e
p
t
6
y
IDEL TAKE AWAY
escription
2.10.3.2 DADF Original Re gistr
CLUTCH-ELECTRIC
ROLLER-REGI
tion (Regi) Drive Assembl
-
BELT-TIMMING GEAR
GEAR-KNOB
GEAR-REDUCTION
The Regi drive uses the CLUTCH-ELECTRIC to driv
ROLLER FEED.
The Registration Roller aligns the leading edge of the
roller is rotated for alignment.
The CLUTHC-ELETRIC repeats on/off to align each
The GEAR-KNOB and GEAR-REDUCTION uses the
ROLLER-EXIT with the power. This structure makes
the Registration Roller and transfer the paper to
original. When original is placed in the Nip, the
aper.
BELT to provide the PULLEY connecting
he user remove the jammed paper easily.
Service Manual
2-
6
SAMSUNG ELECTRONICS
Page 81
2. Product
d
d
BELT
-
TIMMING GE
O
R
e
e
Motor is driven continually to maintain stable paper tra
6
y
_
escription
2.10.3.3 D ADF Original Fee
PULLEY-FEED
The ROLLER FEED is driven by the BELT-TIMMING
Drive Assembl
R
LLER-FEED
OLLER-M_IDLE SCF
that is connected to Motor.
The ROLLER-FEED and ROLLER-M IDLE SCF mak
The Motor transfers the paper through interlocking th
the feeding force by using a spring pressure method.
Roller-Feed in and the Roller-Feed out. At scan, the
.
Service Manual
2-
7
SAMSUNG ELECTRONICS
Page 82
2. Product
d
s
ROLLER
EXIT
L
LINK
EXIT_IDLE
F
-
e
_
6
s
y
escription
2.10.3.4 D ADF Exit Drive As
GEAR-EXIT
ROL
SHAFT-EXIT_IDLE
HOLDER-EXIT_IDLE
The power from the Motor is transferred to GEAR-EX
exit. At duplex mode, counter rotation occurs.
embl
ER-EXIT_IDLE
PULLEY-FEED
/R
IT and ROLER-EXIT. The paper is transferred to the
To keep the pressure of the Exit Roller, the ROLLER
when it is rotated inversely, it make the space betwe
The space between rollers is adjusted by LINK-EXIT
EXIT_IDLE is pressurized by spring. At duplex mode,
n rollers to protect the jam.
IDLE and SENSOR-EXIT_IDLE.
Service Manual
2-
8
SAMSUNG ELECTRONICS
Page 83
2. Product
d
A
e
GEAR
-
EXIT are driven
e
6
escription
2.10.3.5 Original Return Drive D
SOLENOID-DADF
LINK-EXIT_IDLE
GEAR-CAM OUTER
rive Assembly
GEAR-CAM INNER
GEAR-EXIT
The solenoid works at only duplex mode.
t Duplex Mode, when the motor rotates inversely, th
.
When the GEAR-EXIT rotates, the solenoid drives th
Roller-Exit and Idle Roller.
solenoid is on and the GEAR-CAM OUTER and
GEAR-CAM and it makes the space between the
Service Manual
2-
9
SAMSUNG ELECTRONICS
Page 84
2. Product
d
n
s
Main Controll
c
g
r
h
h
a
m
7
escription
2.11 Printer Electronics Co
The CLX-9x52 series Electrical Circuit System con
•
•DADF Controller
•OPE Controller
•USB HUB Controller
•HVPS
•SMPS
Diagram of the CLX-9x52 Series Electri
er
figuration
ists of the following:
al Circuit
The main controller controls all modules required to p
The main controller receives print data from the host t
receives copy data from the scan controller. It takes t
data.
The main controller uses the Cortex A9 Dual Core 1
perform these jobs successfully. The main controller
the USB HUB Controller to display some of the syste
Service Manual
int, that is, LSU, HVPS, FAN, Fuser, etc.
rough the network or USB port, and it
is information and generates printable video bitmap
GHz CPU, 1.5GB Memory, and a 320GB HDD to
lso communicates with the OPE Controller through
information.
2-
0
SAMSUNG ELECTRONICS
Page 85
2. Product
d
e
b
u
e
P
A
t
c
S
7
t
Main Board
escription
The USB HUB Controller interfaces with the Video Co
such as USB memory sticks and Authentication devic
The OPE Controller displays the status of the system
actions or the Video controller.
The DADF Controller controls some mechanisms req
communicates with the Scan Controller to synchroniz
the scanning data to the Video Controller through the
MICOM at the Engine Controller activates each con
optimized energy-saving algorithm for optimal efficien
side is used to safely shut down the system power. It i
ntroller, the OPE Controller, and some USB Devices
s such as Common Access Card readers.
y using the WSVGA TFT LCD in response to user
ired to scan by feeder continuously and
the scanning timing. The Scan Controller transfers
CIe high speed bus.
roller’s power and turns off power according to an
y. The soft Power Switch in the OPE Controller left-
s controlled by the MICOM.
FDB (Fuser Drive Board)
SMPS Board2
Fax Board
HVPS Board1
MPS Board1
Service Manual
HVPS Board2
2-
1
SAMSUNG ELECTRONICS
Page 86
d
2.11.1 Main controller
r
)
r
A
7
2. Product
escription
The main controller is integrated the engine controlle
(Cortex A9 1Ghz Dual Core ) and 1.5GB DDR3 as
It uses a SATA Bridge to access the hard drive (HDD
Controller. The engine control part manages the elect
nd it provides the high voltage, PWM, controls the te
units like a DCF, HCF, Finisher.
, video controller. It consists of a Main Processor
the system memory.
and a USB Controller to interface with the OPE
onic photo system and sends the video data to LSU.
mperature for fuser unit. It controls various optional
2-
Service Manual
2
SAMSUNG ELECTRONICS
Page 87
d
Main Controller
5
SCAN I/F CONNECTOR
7
A
5
2. Product
7
6
escription
4
2
3
1
12
Connection
1USB DEVICE PORT
2USB HOST PORT
(Back-Sided)
3NETWORK PORT
4USB HUB CONTROLLER
PBA I/F PORT
6MSOK PBA I/F
CONNECTOR
7HDD I/F CONNECTOR
8POWER CONNECTOR
8
Information
•
SEC-CODE
CLX-9352NA : JC92-02580
CLX-9252NA : JC92-02581A
PBA Name : PBA-MAIN
•
Service Manual
2-
3
SAMSUNG ELECTRONICS
Page 88
d
2.11.1.1 MSOK
y
o
d
7
2. Product
escription
The MSOK PBA is used to store all system informatio
two EEPROMs, and a secured EEPROM. The Flash
each) are used for all system operation information (s
and service information). The secured EEPROM is f
When a Video Controller PBA needs to be exchange
Video Controller PBA to retain the system information
n. It is composed of a Non-Volatile Flash Memory,
Memory (8 MB size) and two EEPROMs (256K-bit
stem parameter, device status, tech information,
r the system security information and is 2K-bit.
, the MSOK PBA should be re-installed to the new
.
2-
Service Manual
4
SAMSUNG ELECTRONICS
Page 89
d
2.11.1.2 Fax-Joint PBA
e
7
2. Product
escription
The Fax-Joint PBA is used for interfacing between th
method of this PBA is UART type.
connectors, one for the telephone line connection and
3
EXTERNAL PHONE I/F CONNECTOR
7
the other for an external phone connection
escription
2.11.1.3 Primar y Modem Card -
There are two types of modem cards in the CLX-9x52
and receive FAX data through a telephone line. This
1
Information
Optional
NA. The Primary Modem Card is used to transfer
BA is controlled by the FCON PBA and has two
.
3
2
FAX-Kit model name : CLX-FAX160
SEC-CODE : JC92-02558A
PBA Name : PBA-FAX CARD
Connection
1FAX JOINT I/F CONNECTOR
2TEL LINE I/F CONNECTOR
Service Manual
2-
6
SAMSUNG ELECTRONICS
Page 91
2. Product
d
d
,
,
d
SEC
CODE
JC92
2
TEL LINE I/F CONNECTOR
7
p
pyy,
escription
2.11.1.4 Secondary Modem Car
The Secondary Modem card is used for FAX processi
this card is installed
data is processed using this card. The secondary mo
phone connector.
a customer can use another fax l
1
- Optional
ng with FCON as the second FAX number. When
ine. If the
em card has only a Tel line connector, no external
rimary modem card is busy, then fax
2
Information
FAX-Kit model name : CLX-FAX260
-
PBA Name : PBA-SECOND FAX CARD
:
-xxxxxx
Connection
1FAX JOINT I/F CONNECTOR
Service Manual
2-
7
SAMSUNG ELECTRONICS
Page 92
2. Product
d
c
e
L
7
escription
2.11.1.5 Foreign Device Interfa
The FDI Module as a Option is used to track machine
some special users. The Module interfaces to the Vid
1
Information
e(FDI) – Optional
usage such as the number of print or copy pages for
o Controller.
SEC-CODE : JC92-01616A
PBA Name : PBA SUB-FDI
Connection
1CONNECTOR TO VIDEO CONTROL
ER
2-
Service Manual
8
SAMSUNG ELECTRONICS
Page 93
d
2.11.2 OPE Controller
A
h
t
g
i
V
a
t
V
C3C
C
USB PHY
C
HUB
USB
7
py,pp,
r
r
er
Co
er
Cooe
2. Product
escription
The Main OPE Controller is composed of an SOC (
128 MB NAND-Flash Memory, and an 8.9 inch touc
The AM3715 is used to interface with users through
some Keys, and some LEDs. A received command
USB interface of the HUB Controller PBA.
8.9”
WS
olt
Shif
USB
OTG
USB
HOST
I2C
UART
MMC
USB HOST
PORT2
USB HOST
PORT1
TUSB1210
HUB
USB
HUB
GL850G
USB2.0
M3715-1GHz processor), 128 MB DDR2 memory,
screen LCD (1024 x 600).
he LCD display, which can support the touch screen,
s delivered to the Video Main Controller through the
1MAIN PWR CONNECTOR FROM
2OPE MAIN PWR CONNECTOR TO
3USB HOST PORT FOR INTERFAC
4USB UPSTREAM PORT TO THE V
5CASSETTE Indicating LED
6WLAN PORT
-
HE MAIN CONTROLLER
THE OPE MAIN PB
E EXT.DEVICES
IDEO MAIN PB
Service Manual
2-
2
SAMSUNG ELECTRONICS
Page 97
d
A
S
A
2.11.3 DADF Controller
IC f
BLDC
o
SEC
CODE :
JC92
02446A
2
e
a
8
r
r
2. Product
escription
DF PBA controls the DADF driving. It uses RENE
memory, 24KB RAM) and interfaces with MAIN PB
or motor driving and controls one
motor,
Information
AS’s uPD70F3824(48MHz Main Clock, 256KB Flash
through UART communication. It has one Motor Driver
ne solenoid, two clutch, ten sensors.
-
PBA Name : PBA-ADF
Connection
1Scan Joint PBA
2Exit Solenoid
3Length Sensor 1,2,3 / Width Sensor 1,
4Exit Sensor
5Exit Idle Sensor
6BLDC Motor
7Cover Open Sensor / Regi Sensor / D
8Pickup Clutch / Regi Clutch / Scan Re
-
tect Senso
d Senso
Service Manual
2-
3
SAMSUNG ELECTRONICS
Page 98
d
a
2.11.4 Interface Part
pp
a
M
m
g
r
r
a
8
py
2. Product
escription
The CLX-9x52 series provides clear interface specific
due to the design strategy for common-use and stand
Controller and the Engine Controller uses two pairs of
makes it possible to have a sliding connection to the
Controller use a PCIe interface to achieve high perfor
standard harnesses are used to reduce manufacturin
2.11.5 Connection Part
Controllers require connections to all of the system un
Solenoid, Sensor, and other PBAs. The Engine Cont
electronic signals through signal wires. The signal wi
starting and stopping the motors, operating clutches,
tions of all components and modules in the system,
rdization. The main interface between the Main
drawer type board-to-board connectors, which
ain Controller. The Main Controller and the IP
ance. In the connection of mechanical parts,
costs and to allow convenient maintenance.
its such as the BLDC motor, Stepping Motor, Clutch,
oller contains various types of connectors, to deliver
es provide electronic control signals that are used for
ctivating solenoids, sensing the unit state, etc.
Service Manual
2-
4
SAMSUNG ELECTRONICS
Page 99
d
2.11.6 SMPS Board1
p
e
a
m
M
P
U
M
n
U
8
2. Product
escription
The SMPS (Switching Mode Power Supply) Board su
boards through a Main Controller. The voltage provid
input. It has safety protection modes for over current
plies electric power to the Main Board and other
d includes +5V, and +24V from a 110V/220V power
nd overload.
Specification
General Input/Output Voltage
1) AC 110V (90V ~ 135V)
2) AC 220V (180V ~ 270V)
3) Input Current: 10A (110V)
4) Output Power: 270W
DC 5V : 30W
DC 24V : 240W
Service Manual
5A (220V)
Infor
SEC CO
PBA NA
Con
1IN
2O
3S
4O
2-
ation
110V220V
DEJC44-00093AJC44-00100A
ESMPS Type5 V1SMPS Type5 V2
ection
UT_AC
TPUT 24V1/2/3/4
PS ENABLE
TPUT 5V1/2
5
SAMSUNG ELECTRONICS
Page 100
d
◆ Input / Output connector
2
AC_N
P
r
+24V3
5
8
2
24V ON/OFF
2. Product
escription
AC Input Connector( CN1 )
PIN ASSIGNPIN NODescription
1AC_L
AC Input
DC Output Connector( CN3 )
DescriptionPIN NAMEPIN ASSIGN
Power+24V11
24V GroundGND2
Power+24V23
24V Ground+GND4
owe
24V GroundGND6
Power+24V47
CONTROL SIGNAL Connector( CN2 )
PIN ASSIGNPIN NODescription
1GND
CONTROL
SIGNAL
3GND
DC Output Connector( CN4 )
DescriptionPIN NAMEPIN ASSIGN
Power+5V11
5V GroundGND2
Power+5V23
5V GroundGND4
24V GroundGND8
Service Manual
2-
6
SAMSUNG ELECTRONICS
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