• One 10/100 Base TX network connector (SCX-3205W)
• One 802.11b/g/n wireless module (SCX-3205W)
6. Toner cartridge
• Initial : 700 pages
• Sales : 1,500 pages
7. Machine life
• 30,000 sheets or 3 years (whichever comes rst)
Page 2
GSPN (Global Service Partner Network)
North America : service.samsungportal.com
Latin America : latin.samsungportal.com
CIS : cis.samsungportal.com
Europe : europe.samsungportal.com
China : china.samsungportal.com
Asia : asia.samsungportal.com
Mideast & Africa : mea.samsungportal.com
Page 3
chapter 1Precautions
1.1 Safety Warning ……………………………………………………1-1
1.2 Caution for safety …………………………………………………1-2
1.2.1 Toxic material …………………………………………………1-2
1.2.2 Electric Shock and Fire Safety Precautions ………………1-2
6.3 A4 ISO 19798 Standard Pattern …………………………………6-8
6.3.1 A4 ISO 19752 Standard Pattern ……………………………6-8
6.4 Selecting a location ………………………………………………6-9
attached Exploded Views & Parts List
Page 6
Precautions
1. Precautions
In order to prevent accidents and damages to the equipment please read the precautions listed below
carefully before servicing the product and follow them closely.
1.1 Safety warning
(1) Only to be serviced by a factory trained service technician.
High voltages and lasers inside this product are dangerous. This product should only be serviced by a
factory trained service technician.
(2) Use only Samsung replacement parts.
There are no user serviceable parts inside the product. Do not make any unauthorized changes or
additions to the product as these could cause the product to malfunctions and create an electric shocks
or re hazards.
(3) Laser Safety Statement
The product is certied in the U.S. to conform to the requirements of DHHS 21 CFR, chapter 1
Subchapter J for Class 1(1) laser products, and elsewhere, it is certied as a Class I laser product conforming to the requirements of IEC 825. Class I laser products are not considered to be hazardous. The
laser system and product are designed so there is never any human access to laser radiation above a
Class I level during normal operation, user maintenance, or prescribed service condition.
Warning >> Never operate or service the product with the protective cover removed from Laser/Scanner
assembly. The reected beam, although invisible, can damage your eyes.
When using this product, these basic safety pre-cautions should always be followed to reduce
risk of re, electric shock, and personal injury.
Service Manual
1-1
Samsung Electronics
Page 7
Precautions
Service Manual
1-2
Samsung Electronics
1.2 Caution for safety
1.2.1 Toxic material
This product contains toxic materials that could cause illness if ingested.
(1) If the LCD control panel is damaged, it is possible for the liquid inside to leak. This liquid is toxic.
Contact with the skin should be avoided. Wash any splashes from eyes or skin immediately and contact
your doctor. If the liquid gets into the mouth or is swallowed, see a doctor immediately.
(2) Please keep imaging unit and toner cartridge away from children. The toner powder contained in the
imaging unit and toner cartridge may be harmful, and if swallowed, you should contact a doctor.
1.2.2 Electric shock and re safety precautions
Failure to follow the following instructions could cause electric shock or potentially cause a re.
(1) Use only the correct voltage, failure to do so could damage the product and potentially cause a re or
electric shock.
(2) Use only the power cable supplied with the product. Use of an incorrectly specied cable could cause the
cable to overheat and potentially cause a re.
(3) Do not overload the power socket, this could lead to overheating of the cables inside the wall and could
lead to a re, and/or cause your ceiling or lamp lights to icker.
(4) Do not allow water or other liquids to spill into the product, this can cause electric shock. Do not allow
paper clips, pins or other foreign objects to fall into the product, these could cause a short circuit leading
to an electric shock or re hazard.
(5) Never touch the plugs on either end of the power cable with wet hands, this can cause electric shock.
When servicing the product, remove the power plug from the wall socket.
(6) Use caution when inserting or removing the power connector. When removing the power connector, grip it
rmly and pull. The power connector must be inserted completely, otherwise a poor contact could cause
overheating possibly leading to a re.
(7) Take care of the power cable. Do not allow it to become twisted, bent sharply around corners or wise
damaged. Do not place objects on top of the power cable. If the power cable is damaged it could overheat
and cause a re. Exposed cables could cause an electric shock. Replace the damaged power cable
immediately, do not reuse or repair the damaged cable. Some chemicals can attack the coating on the
power cable, weakening the cover or exposing cables causing re and shock risks.
(8) Ensure that the power sockets and plugs are not cracked or broken in any way. Any such defects should
be repaired immediately. Take care not to cut or damage the power cable or plugs when moving the
machine.
(9) Use caution during thunder or lightning storms. Samsung recommends that this machine be disconnected
from the power source when such weather conditions are expected. Do not touch the machine or the
power cord if it is still connected to the wall socket in these weather conditions.
(10) Avoid damp or dusty areas, install the product in a clean well ventilated location. Do not position the
machine near a humidier or in front of an air conditioner. Moisture and dust built up inside the machine
can lead to overheating and cause a re or cause parts to rust.
(11) Do not position the product in direct sunlight. This will cause the temperature inside the product to rise
possibly leading to the product failing to work properly and in extreme conditions could lead to a re.
(12) Do not insert any metal objects into the machine through the ventilator fan or other part of the casing, it
could make contact with a high voltage conductor inside the machine and cause an electric shock.
Page 8
Precautions
Service Manual
1-3
Samsung Electronics
1.2.3 Handling precautions
The following instructions are for your own personal safety to avoid injury and so as not to damage the
product.
(1) Ensure the product is installed on a level surface, capable of supporting its weight. Failure to do so could
cause copy quality problems, and/or the product to tip or fall.
(2) The product contains many rollers, gears and fans. Take great care to ensure that you do not catch your
ngers, hair or clothing in any of these rotating devices.
(3) Do not place any small metal objects, containers of water, chemicals or other liquids close to the product
which if spilled could get into the machine and cause damage or a shock or re hazard.
(4) Do not install the machine in areas with high dust or moisture levels, beside on open window or close to a
humidier or heater. Damage could be caused to the product in such areas.
(5) Do not place candles, burning cigarettes, etc on the product, These could cause a re.
1.2.4 Assembly / Disassembly precautions
Replace parts carefully and always use Samsung parts. Take care to note the exact location of parts and also
cable routing before dismantling any part of the machine. Ensure all parts and cables are replaced correctly.
Please carry out the following procedures before dismantling the product or replacing any parts.
(1) Check the contents of the machine memory and make a note of any user settings. These will be erased if
the main board or network card is replaced.
(2) Ensure that power is disconnected before servicing or replacing any electrical parts.
(3) Disconnect interface cables and power cables.
(4) Only use approved spare parts. Ensure that part number, product name, any voltage, current or
temperature rating are correct.
(5) When removing or re-tting any parts do not use excessive force, especially when tting screws into
plastic.
(6) Take care not to drop any small parts into the machine.
(7) Handling of the OPC Drum
- The OPC Drum can be irreparably damaged if it exposed to light.
Take care not to expose the OPC Drum either to direct sunlight or to uorescent or incandescent room
lighting. Exposure for as little as 5 minutes can damage the surface of the photoconductive properties
and will result in print quality degradation. Take extra care when servicing the product. Remove the OPC
Drum and store it in a black bag or other lightproof container. Take care when working with the Covers
(especially the top cover) open as light is admitted to the OPC area and can damage the OPC Drum.
- Take care not to scratch the green surface of OPC Drum Unit.
If the green surface of the Drum Cartridge is scratched or touched the print quality will be compromised.
Page 9
Precautions
Service Manual
1-4
Samsung Electronics
1.2.5 Disregarding this warning may cause bodily injury
(1) Be careful with the high temperature part.
The fuser unit works at a high temperature. Use caution when working on the printer. Wait for the fuser to
cool down before disassembly.
(2) Do not put nger or hair into the rotating parts.
When operating a printer, do not put hand or hair into the rotating parts (Paper feeding entrance, motor,
fan, etc.). If done, you can get harmed.
(3) When you move the printer.
This printer weighs 4.72kg (10.41 lbs) including toner cartridge and cassette. Use safe lifting and handling
techniques. Use the lifting handles located on each side of the machine. Back injury could be caused if
you do not lift carefully.
(4) Ensure the printer is installed safely.
The printer weighs 4.72kg (10.41 lbs), ensure the printer is installed on a level surface, capable of
supporting its weight. Failure to do so could cause the printer to tip or fall possibly causing personal injury
or damaging the printer.
(5) Do not install the printer on a sloping or unstable surface. After installation, double check that the printer
is stable.
Page 10
Precautions
Service Manual
1-5
Samsung Electronics
1.3 ESD precautions
Certain semiconductor devices can be easily damaged by static electricity. Such components are commonly
called “Electrostatically Sensitive (ES) Devices” or ESDs. Examples of typical ESDs are: integrated
circuits,some eld effect transistors, and semiconductor “chip” components.
The techniques outlined below should be followed to help reduce the incidence of component damage
caused by static electricity.
Caution >>Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.
1. Immediately before handling a semiconductor component or semiconductor-equipped assembly, drain
off any electrostatic charge on your body by touching a known earth ground. Alternatively, employ a
commercially available wrist strap device, which should be removed for your personal safety reasons prior
to applying power to the unit under test.
2. After removing an electrical assembly equipped with ESDs, place the assembly on a conductive surface,
such as aluminum or copper foil, or conductive foam, to prevent electrostatic charge buildup in the vicinity
of the assembly.
3. Use only a grounded tip soldering iron to solder or desolder ESDs.
4. Use only an “anti-static” solder removal device. Some solder removal devices not classied as “anti-static”
can generate electrical charges sufcient to damage ESDs.
5. Do not use Freon-propelled chemicals. When sprayed, these can generate electrical charges sufcient to
damage ESDs.
6. Do not remove a replacement ESD from its protective packaging until immediately before installing it.
Most replacement ESDs are packaged with all leads shorted together by conductive foam, aluminum foil,
or a comparable conductive material.
7. Immediately before removing the protective shorting material from the leads of a replacement ESD, touch
the protective material to the chassis or circuit assembly into which the device will be installed.
8. Maintain continuous electrical contact between the ESD and the assembly into which it will be installed,
until completely plugged or soldered into the circuit.
9. Minimize bodily motions when handling unpackaged replacement ESDs. Normal motions, such as
the brushing together of clothing fabric and lifting one’s foot from a carpeted oor, can generate static
electricity sufcient to damage an ESD.
Page 11
Product spec and feature
2. Product spec and feature
2.1 Product Specications
2.1.1 Product Overview
1. Print / Copy Speed
• 17 ppm in letter
2. Processor
• Jupiter5 375 Mhz
3. Printer Language Emulations
• SPL, PCL5e
SCX-3200/3205
SCX-3205W
4. Memory
• 32 MB (SCX-3200/3205)
• 128 MB (SCX-3205W)
5. Interfaces
• One USB port
• One 10/100 Base TX network connector (SCX-3205W)
• One 802.11b/g/n wireless module (SCX-3205W)
6. Toner cartridge
• Initial : 700 pages
• Sales : 1,500 pages
7. Machine life
• 30,000 sheets or 3 years (whichever comes rst)
Service Manual
2-1
Samsung Electronics
Page 12
Product spec and feature
Service Manual
2-2
Samsung Electronics
2.1.2 Specications
• Product Specications are subject to change without notice. See below for product specications.
2.1.2.1 General Specication
ItemsSCX-3200/3205SCX-3205W
Major FunctionsStandard- Copy
- Print
- Scan
Option--
- Copy
- Print & N/W Print
- Scan
- Wireless LAN
- DLNA
Dimension (WxDxH)15.28 x 11.77 x 9.21 inches
(388 x 299 x 234 mm)
Weightwith Package7.5 Kg (16.63 lbs)7.5 Kg (16.63 lbs)
LCD7-Segment(2-Digit)7-Segment(2-Digit)
I/O InterfaceStandardHi-Speed USB 2.0Hi-Speed USB 2.0,
Option--
Power
Consumption
Noise (Sound
Pressure)
Warm Up Timefrom Sleep StartLess than 15 secLess than 15 sec
S/W CD ROM1 CD for all driver & application 1 CD for all driver & application
Toner Cartridge1 EA1 EA
Power Cable1 EA1 EA
Telephone JackNoNo
Wireless Install Guide
NoYes
Printer Cable[USB]
Only XBH/ETS/XIP/STS/XEV/XSS
model
2.1.2.7 Options
ItemsSCX-3200/3205SCX-3205W
OptionsNoNo
MemoryNoNo
Paper CassetteNoNo
PSNoNo
Mechanical CounterNoNo
FDINoNo
Downloadable Font ROMNoNo
2nd Fax ModemNoNo
DeskNoNo
Only XBH/ETS/XIP/STS/XEV/XSS
model
2.1.2.8 Consumables
ItemsSCX-3200/3205SCX-3205W
Type1 piece1 piece
Model CodeTonerMLT-D104S, MLT-D104LMLT-D104S, MLT-D104L
TonerLifeStandard : Average Cartridge Yield
1,500 standard pages
(Ships with 700 pages Starter Toner
Cartridge)
Declared cartridge yield in
accordance with ISO/IEC 19752
Level SensorNoNo
Toner CountYes (CRUM)Yes (CRUM)
Standard : Average Cartridge Yield
1,500 standard pages
(Ships with 700 pages Starter Toner
Cartridge)
Declared cartridge yield in
accordance with ISO/IEC 19752
Page 20
Product spec and feature
Service Manual
2-10
Samsung Electronics
2.1.2.9 Options
ItemsSpecication
MemoryN/A
Second CassetteN/A
Wired NetworkN/A
Wireless NetworkN/A
Hard DiskN/A
Duplex UnitN/A
Page 21
Product spec and feature
Service Manual
2-11
Samsung Electronics
2.1.3 Model Comparison Table
Samsung
SCX-3200/3205
SCX-3205W
Image
Print speed (A4/Ltr.)16/17ppm18/19ppm18/19ppm
FPOT (From ready)10 sec40 sec7 sec
Resolution (Print)Up to 1,200 x 1,200 dpiUp to 600 x 600 dpiUp to 600 x 600 dpi
Resolution
(Scan)
EmulationPCL5e, SPLSPL-CGDI
Paper
Handling
OpticalUp to 1,200 x 1,200 dpiUp to 600 x 2,400 dpi Up to 1200 dpi
Enhanced4,800 x 4,800 dpi4,800 x 4,800 dpiUp to 19,200 dpi
Input150 sh. Bin
Output50 sh.50 sh.100 sh.
Samsung
SCX-4300
250 sh. Cassette
1 MP
HP
M1120
250 sh. Bin
10 sh. MP
General
Memory
Interface
Noise level49 dBA48 dBA52 dBA
Dimension
WxDxH
(
Consumables1.5K2K(1K)2.0K
32 MB (SCX-3200/3205)
128 MB (SCX-3205W)
Hi-Speed USB 2.0
Wireless (SCX-3205W)
)
15.9” x 11.7” x 9.2”16.1” x 16.8” x 9.1”18.00” x 14.5” x 12.7”
8 MB32 MB
Hi-Speed USB 2.0High speed USB 2.0
Page 22
Product spec and feature
Service Manual
2-12
Samsung Electronics
2
1
8
9
10
11
12
3
4
7
5
6
2.2 System Overview
This chapter describes the functions and operating principal of the main component.
2.2.1 Front View
This illustration may differ from your machine depending on its model.
1 Front door7Paper width guides
2 Control panel8Scanner lid
3 Output tray (face down)9Scanner glass
4Output support10Scan unit
5Tray11Inner cover
6Paper length guide12Toner cartridge
Page 23
Product spec and feature
Service Manual
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Samsung Electronics
2.2.2 Rear View
231
This illustration may differ from your machine depending on its model.
1 USB port3Network port
2Power cord receptacle
a. SCX-3205W(K) only
a
Page 24
Product spec and feature
Service Manual
2-14
Samsung Electronics
13
5
12
7
1
2
9
14
10
3
11
6
4
8
2.2.3 System Layout
This model consists of the Engine parts and F/W, and said engine parts consists of the mechanical
parts comprising the Frame, Feeding, Developing, Driving, Transferring, Fusing, Cabinet and H/W. The
electrical systems are comprised of the main control board, power board, operation panel, PC Interface.
10Supply roller
11Feed roller
12Friction pad
13Pickup roller
Page 25
Product spec and feature
Service Manual
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Samsung Electronics
2.2.3.1 Feeding Part
It is consists of a basic cassette, an MP tray for printing on special media (envelope, label, special paper).
1) Separation method
Paper is separated by the friction pad mounted to the center of the cassette.
2) Input tray
This model uses a bin-type tray to hold the paper.
It takes a center loading method and applies ‘friction pad
separating method.
Both the side guide and the rear guide can be adjusted for
various types of papers from A6 to legal size paper.
The input tray uses a Paper Empty Sensor for paper
detection.
(Capacity: 150 sheets (80g/㎡ paper standard), paper
arranging function, various size papers accepting function.
In the front side, there is a paper level indicator.
3) Pick- up roller
The paper feed system is comprised of a paper pickup,
driving, control function, paper feeding, and static removal
function. The Pick up roller is driven by a solenoid.
Page 26
Product spec and feature
Service Manual
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Samsung Electronics
2.2.3.2 Transfer Roller
- The transfer roller delivers the toner from the OPC drum to the paper.
- There is no PTL Ass’y.
- Life Span : Print over 30,000 sheets (in15~30℃)
2.2.3.3 Driver Assy
- The SCX-3200/3205 Series drive system is comprised of an OPC, Pick- up, Feed, Fuser, Gear- Train all
xed to as mounting bracket. A step motor is used for driving the assembly; it mounted to the left frame.
• Driving Frequency: Step Motor 840 PPS (1050rpm)
• Drive system is comprised of: Stepping Motor → Pick-up/Feeder/Transfer/Fuser/Exit
Page 27
Product spec and feature
Service Manual
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Samsung Electronics
2.2.3.4 Fuser
The Fuser Unit consisted of a halogen lamp, heat roller, pressure roller, thermistor and thermostat. It fuses
the toner on a paper by a combination of heat and pressure to complete the printing job.
1) Thermostat
When a heat lamp is overheated, a Thermostat cuts off the main power to prevent over- heating.
- Thermostat Type : Non- Contact type dual THERMOSTAT
- Control Temperature : 195℃ ± 5 ℃
2) Thermistor
It is a temperatrue detecting sensor.
- Temperature Resistance : 7 ㏀ (180 ℃)
Provide spec cold at rook temp
Example: 375K ohms
3) Heat roller
The heat roller transfers the heat from the lamp to apply a heat on the paper.
The surface of a heat roller is coated with Teon, so toner does not stick to the surface.
4) Pressure roller
A pressure roller mounted under a heat roller is made of a silicon resin, and the surface also is coated with
Teon. When a paper passes between a heat roller and a pressure roller, toner adheres to the surface of a
paper permanently.
5) Halogen Lamp
- Voltage 120 V : 115 ± 5 %
220 V : 230 ± 5 %
- Capacity : 600 Watt ± 25 W
Page 28
Product spec and feature
Service Manual
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Samsung Electronics
6) Items for safety
Protecting device for overheating
- 1st protection device: Hardware cuts off when overheated
- 2nd protection device: Software cuts off when overheated
- 3rd protection device: Thermostat cuts off main power.
Safety device
- The fuser power is cut off when a front cover is opened
- A caution label has been added to the Fuser Unit to warn the customer of the “Hot Area”, so they can
use care when in that area. It can be easily seen when customer opens the rear cover.
Page 29
Product spec and feature
Service Manual
2-19
Samsung Electronics
OPC Drum
Photo Diode
LD Driver circit
Protector panel
LD(Laser Diode)
Polygon Mirror
Polygon Motor
Motor Driver
2.2.3.5 LSU (Laser Scanner Unit)
It is the core part of the LBP which switches from the video data received to the controller to the electrostatic
latent image on the OPC drum by controlling laser beam, exposing OPC drum, by use of a polygon mirror.
The OPC drum is synchronized with the paper feeding speed. The /HSYNC signal is created when the laser
beam from LSU reaches the end of the polygon mirror, and the signal is sent to the controller.
The controller detects the /HSYNC signal to adjust the vertical line of the image on paper. The /HSYNC
signal is used to synchronize the image data with the left margin of the paper.
Page 30
Product spec and feature
Service Manual
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Samsung Electronics
Cleaning Roller
Cleaning Blade
-720V
-350V
-550V
0.20mW
Max -1.4KV
-100V
1
2
3
4
5
6
7
8
+3.5kV
-150V↓
2.2.3.6 Toner Cartridge
By using the electronic photo process, it creates a visual image. In the toner cartridge, the OPC unit and the
developing unit are contained in one assembly. The OPC unit houses the OPC drum and charging roller, the
toner cartridge unit houses the toner, supply roller, developing roller, and blade (Doctor blade)
• Developing Method : Non magnetic 1 element contacting method
• Toner : Non magnetic 1 element shatter type toner
• Charging capacity : - 39.1 ± 3 μC/g
• Average OD : 8.0 ± 0.5㎛ (Toner)
• The life span of toner (ISO 19752 pattern / Letter standard)
→ Initial toner : 0.7K
→ Sales toner : 1.5K
• Toner Residual Sensor : Dot count with CRUM(CRU Monitor)
• OPC Cleaning : Collect the toner by using cleaning blade
• Handling of wasted toner : Waste [residual] toner is cleaned off the drum by means of a cleaning blade.
• OPC Drum Protecting Shutter : None
• Classifying device for toner cartridge: ID is classied by CRUM.
Page 31
Product spec and feature
Service Manual
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Samsung Electronics
CN9. PICKUP_CLUTCH
CN7. FLATMOTOR
CN5. SENSOR
CN2. MAIN MOTOR
CN15. WLAN (wireless only)
CN10. FUSER
CN8. CIS
CN11. OUTBIN FULL
CN4. WIERED LAN (wireless only)
CN16. USB
CN17. FAN
CN1. HYPER
CN14. OPE
CN6. POWER I/F
CN12. LSU
CN9. PICK
UP_CLUTCH
CN7.
FLAT
MOTOR
CN5.
SENSOR
CN2.
MAIN
MOTOR
CN15. WLAN
(wireless only)
CN10.
FUSER
CN8.
CIS
CN11.
OUTBIN
FULL
CN4. WIERED LAN
(wireless only)
CN16.
USB
CN17.
FAN
CN1.
HYPER
CN14.
OPE
CN6.
POWER
I/F
CN12.
LSU
2.2.4 Engine H/W Specications
2.2.4.1 Main PBA
The Engine and the Printer Controller function are housed into one Main Board called Main PBA. The CPU
is functioned as the bus control, I/O handling, drivers, and PC interface. The main board sends the Current
Image of Video data to the LSU and manages the conduct of manages the electrophotography for printing.
The CPU on Main PBA manages the circuits for the motors: paper feed, paper path, clutches, pre- transfer
lamp, current control to driver components, and fan driving.
The signals from the paper feed jam sensor and paper empty sensor are directly inputted to the main board.
Page 32
Product spec and feature
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Samsung Electronics
(a) ASIC (Jupiter5)
- CPU Core : Use 32 Bit RISC Processor of Jupiter5 which uses ARM 926EJS core.
- the main function of ASIC has the following feautres;
-> Multi-layered bus architecture for bus trafc distribution
-> Multi-Port DDR SDRAM Controller
-> external NOR ash controller and SPI interface, which Supports Auto Boot operation using external
Serial Flash.
-> Speed
- Up to 133MHz Bus Interface and DRAM interface
- GDI Mono MFP: up to 30 ppm at 2400 dpi mode
- Supports A4 paper size
(b) Memory
1) Serial-type nor ash memory
Store System Program and can be download System Program through PC Interface
When Printing, use Band Buffer, System Working Memory Area.
- Capacity : 32M Byte (SCX-3200/3205)
128M Byte (SCX-3205W)
for printing System Working Memory Area
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Product spec and feature
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Samsung Electronics
(c) Sensor Input Circuit
■ Paper Empty Sensing
The Paper empty sensor on the tray detects the state of paper empty and the state of paper width i.e. narrow
paper width or not.
■ Regi Sensing
N/A
■ Paper Feeding
When paper passes the actuator (feed sensor part), it detects the signal by use of a Photo interrupter,
informs the CPU, and synchronizes the image data after a predetermined time.
If it doesn’t detect the feed sensor within 1sec. after paper is fed, paper Jam0 is occurred (LED will be display
Orange color).
■ Paper Exit Sensing
N/A
■ Cover Open Sensing
The Cover open sensor is located on the HVPS. After the top cover is opened, +24VS (Solenoid, Main Motor,
Polygon motor part of LSU and HVPS), which is supplied to the each unit, is cut off.
In case, the red light will will be ON to inform the end-user.
■ SOLENOID Driving
The clutches are driven by turning on the TRs, which is controlled by the CPU. The diode in the Clutch
driving circuits protects TR driven from the noise, which may occur when the solenoid is de-energized.
■ Motor Driving
The main motor driving circuits is on the main board
There is motor driver IC on the main board, to control the step motor.
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Product spec and feature
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Samsung Electronics
Main Board
Fuser
Main Board
Fuser
2.2.4.2 HVPS and SMPS Board
The HVPS Board and SMPS Board housed in one board.
The HVPS board creates the high voltage of THV/MHV/Supply/Dev and supplies it to the developer portion,
so as to develop the optimum image quality. The HVPS portion takes the 24V and outputs the high voltage
for THV/MHV/BIAS, and supplied to the high voltage, OPC cartridge, and transfer roller for optimum latent
image and toner transfer quality.
It is the power source of entire system. It is assembled by an independent module, so it is possible to use for
common use. It is mounted on the side of the machine.
It is consisted of the SMPS portion, which supplies the DC power for driving the system, and AC to power the
Fuser Unit. SMPS has two output channels, which are +3.3V and +24V.
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Product spec and feature
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Samsung Electronics
■ HVPS Board
• Transfer High Voltage (THV+)
- Input Voltage : 24 V DC ± 15%
- Output Voltage : THV+: max +3.5kV ± 10 %,(Duty Variable, no loading )
THV-: -1kV±20% (when cleaning,200 ㏁)
- Input contrast of the Voltage stability degree : under ± 3 % (uctuating input 21.6V~26.4V)
Loading contrast : ± 3 % or less
- Output Voltage Rising Time : 50 ms Max
- Output Voltage Falling Time : 100 ms Max
- Fluctuating transfer voltage with environmental various : 0~3.5kV
- Environment Recognition Control Method : The THV-PWM ACTIVE is transfer active signal. It detects the
resistance by recognizing the voltage value, F/B, while permits the environmental recognition voltage.
- Output Voltage Control Method : Transfer Output Voltage is outputted and controlled by changing Duty of
THVPWM Signal.
• Charge Voltage (MHV)
- Input Voltage : 24 V DC ± 15%
- Output Voltage : -1.0KV ~ -1.8KV DC ± 3%
- Output Voltage Rising Time : 50 ms Max
- Output Voltage Falling Time : 50 ms Max
- Output Loading range : 30 MΩ ~ 1000 MΩ
- Output Control Signal(MHV-PWM) : CPU is HV output when PWM is Low
• Cleaning Voltage (THV- )
- The (+) Transfer Voltage is not outputted because the THV PWM is controlled with low.
- The (-) Transfer Voltage is outputted because the THV-Enable Signal is controlled with low
- The output uctuation range is big because there is no Feedback control.
• Developing Voltage (DEV)
- Input Voltage : 24 V DC ± 15%
- Output Voltage: -200V ~ -500V DC ±3%
- Output Voltage Fluctuation range: PWM Control
- Input contrast of the output stability degree : ± 3 % or less
Loading contrast : ± 3 % or less
- Output Voltage Rising Time : 50 ms Max
- Output Voltage Falling Time : 50 ms Max
- Output Loading range : 10MΩ ~ 1000 MΩ
- Output Control Signal (BIAS-PWM) : the CPU output is HV output when PWM is low.
• Supply
- Output Voltage : -350 V ~ -650V DC ±50 V(ZENER using, DEV )
- Input contrast of the output stability degree : under ± 5 %
Loading contrast : ± 5 % or less
- Output Voltage Rising Time : 50 ms Max
- Output Voltage Falling Time : 50 ms Max
- Output Loading range : 10 MΩ ~ 1000 MΩ
- Output Control Signal (BIAS-PWM) : the CPU is HV output when PWM is low.
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■ SMPS Board
• AC Input
- Input Rated Voltage : AC 220V ~ 240V AC 110V ~ 127V
- Input Voltage uctuating range : AC 180V ~ 270V AC 90V ~ 135V
- Rated Frequency : 50/60 Hz
- Frequency Fluctuating range : 47 ~ 63 Hz
- Input Current : Under 4.0Amps / 2.0Amps (But, the status when Fuser is off or rated voltage is inputted/
outputted
• Rated Output Power
NOITEMCH1CH2Remark
1CHANNEL NAME+3.3V+24.0V
CON 3
24V PIN:1,2,3
GND PIN:8,9,25,26
+24V±10% -> -10%, +15%,
(21.6~26.4V) -> 27.6V
2CONNECTOR PIN
3Rated Output
CON 3
3.3V PIN: 5,7
GND PIN: 8,9
+3.3V±5%
(3.135~3.465V)
4Max. Output Current0.8A1.35A
5Peak Loading Current1.0A1.8A100ms
6RIPPLE NOISE Voltage 100mVp-pUnder 500mVp-p
7Maximum output2.64W32.4W
8Peak output3.3W43.2W100ms
Protection for loading shortage
9
and overowing current
Shut down or Fuse
Protection
Shut down or Output
Voltage Drop
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2.2.5 Engine F/W Contol Algorithm
2.2.5.1 Feeding
If feeding from a cassette, drive of the pickup roller is controlled by a solenoid. The on/off of the solenoid is
controlled by controlling the general output port or the external output port. Provided below are the units jam
conditions:
ItemDescription
- After picking up, paper is not fed.
- After picking up, paper entered but it cannot reach to the feed sensor in a predetermined
time due to slippage, etc.
JAM 0
JAM 1
- After picking up, if the feed sensor is not on, re-pick up. After re-picking up, if the feed
sensor is still not on after a predetermined time, JAM 0 is displayed.
* It is a status that the leading edge of the paper doesn’t pass the feed sensor.
- Even though the paper reaches to the feed sensor, the feed sensor doesn’t be ON.
* It is a status that the leading edge of the paper already passes the feed sensor.
- After the leading edge of the paper passes the feed sensor, the trailing edge of the paper
must clear the sensor within a predetermined time. (The feed sensor cannot be OFF)
2.2.5.2 Transfer
The charging, developing and the transfer voltages. are controlled by PWM (Pulse Width Modulation). Each
output voltage is changeable due to the PWM duty. The transfer voltage admitted when the paper passes the
transfer roller is decided by environment conditions. The resistance value of the transfer roller is changed due
to the surrounding environment ; the voltage values change to compensate for the environmental conditions.
It is managed through an AD converter. The voltage value for the transfer roller is decided by the changed
value.
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2.2.5.3 Fusing
The temperature change of the heat roller’s surface is changed to the resistance value through the
thermistor. The Heat Roller temperate (warmup) is measured by converting the resistance of the thermistor
to a measurable DC voltage value. The AD converter changes it to a digital value so it knows when it has
reach its proper fusing temperature. The AC power to the fuser lamp is controller by comparing the target
temperature to the value from the thermistor. If the value from the thermistor is out of controlling range an
error will occur and power disabled. Each Heading below lists the types of Fuser Errors that can occur:
• Open Heat Error
During warmup, if the Fuser Unit does not reach its proper operating temperature within a predetermined
time an “Open Heat Error will occur. An error message will be displayed on the Control Panel alerting the
customer. The engine stops all functions and keeps it at the error state until the issue is resoled by a qualied
technician.
• Low Heat Error
After initial warmup had been achieved, if the Fuser Unit at any time does not reach its proper operating
temperature within a predetermined time an “Low Heat Error will occur. An error message will be displayed
on the Control Panel alerting the customer. The engine stops all functions and keeps it at the error state until
the issue is resoled by a qualied technician.
• Over Heat Error
If the Fuser Unit at any time exceeds the specied range [too hot] for proper operating temperature an “Over
Heat Error will occur. An error message will be displayed on the Control Panel alerting the customer. The
engine stops all functions and keeps it at the error state until the issue is resoled by a qualied technician.
2.2.5.4 LSU
LSU receives the image data from PVC or HPVC and makes the latent image on OPC surface.
It uses the single beam, LD.
The errors related to LSU are as follows:
• By LReady : When the printing is started, the engine drives the polygon motor of LSU. After the specied
time is elapsed, if the motor is not in a ready status, the engine detects the error that the
polygon motor is not in a ready status. If this error happens, the engine stops all functions and
keeps it at the error state. Also, the engine informs the error status of the main system and the
error message is displayed at LCD window to inform the error status to the customer.
• By Hsync : When the polygon motor is ready, the LSU sends out the signal called Hsync and it is used to
synchronize with each image line. So, if the engine does not detect consecutively the signal for
a xed time, it denes the Hsync Error. If this error happens, the engine stops all functions and
keeps it at the error state. Also, the engine informs the error status of the main system and then
the error message is displayed at LCD window to inform the error status to the customer.
LSU Error Recovery: If the LReady or Hsync error happens, the paper is exited with no image
on it. The engine mode is changed to recovery mode and the engine informs the main system
of the engine mode. And the engine checks the LSU error. If the error doesn’t happen, the
printing job will be proceeding.
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HOST Software
Firmware
2.2.6 S/W Descriptions
2.2.6.1 Overview
The software of SCX-3200/3205 Series system is constructed as follows:
1) The Host Software is an application software that can operate in a Windows and/or Web Environment.
2) The Firmware portion is an Embedded software controlling the print job.
2.2.6.2 Architecture
Host Software is made up of:
1. Graphic User Interface that offers the various editing functions to user.
2. Driver that translates the received document to a Printing Command Language which printer can understand
and transfers data to spooler.
3. Stand-alone Application that offers the various printing application, PSU(Printer Settings Utility), Printer
Status Monitor, Network Management in Window system.
4. Web-based-Application that offers the same functions as Stand-alone Application and RDC(Remote
Diagnosis Control) in Web environment.
Firmware is made up of:
1. Application (Emulation) that is a interpreter translate data received from Host to a printing language
(PCL, PS, GDI, etc.) to be able to allow the user to take same output as original composed in Host.
2. Kernel that control and management the whole procedure include of Control ow and Printing Job before
transfer to Engine system.
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2.2.6.3 Data and Control Flow
- SPL, PCL5e
- Document Management
System
- Network Administration
- Status Monitor
- Remote Control Panel
- Printer Settings Utility
- Network Administration
- Status Monitor
Application
(Emulation)
- PCL
- PostScript
- etc
Provided below is a detail explanation of the Block Diagram above.
Host Side is made up of:
1. The Print Driver that is Windows application software translates printed data to one of printer languages
and creates spooler le.
2. Web-based Application offer a varity of additional functions for the printer; management of printing job,
printer administration, Status monitor to monitoring the printer status by real time in Web, independent
environment on OS.
3. Stand-alone Application that is a similar Window software as same as above 2,
4. Port Monitor that manages the network communication between spooler and Network Interface Card, or
various additional application and Network Interface Card,(this is, at rst, make communication logical
port, manage the data, transfer them from spooler to network port, and offer the result of printing).
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Firmware Side is made up of:
1. Network Interface Card is that relay the communication between Host and kernel using various network
protocols.
2. Kernel manages the ow control of emulation procedure, receiving data from the Host or Network card and
printing with engine & rendering job.
3. Emulation interprets the various output data from selected emulation.
4. Engine prints rendered bit-map data to paper with required size and type by Kernel.
The Job Spooling function for Multi-User, Multi-Printing that is occurred in Network printing and various
additional printing functions, this Kernel use max. 10 Queuing systems in a memory.
In Printing, the two procedures are:
(1) Case of using USB Port
- After user start to print their document to PCL string or compressed GDI bit-map data; the driver
translates the all graphic data and send the data to host spooler. And then the spooler sends the data
stream to the printer via USB port.
- Kernel receives this data from the Host, and then selects the emulation t to data and start selected
one. After emulation job ends Kernel sends the output bit-map data to Engine using Printer Video
Controller (by clock type for LSU).
- Engine print the received data to required paper with the sequential developing process.
(2) Network Interface Card
- After the user starts to print their document to PCL string or compressed GDI bit-map data, Driver
translate the all graphic data of it and send data to host spooler.
- If so, Port monitor managing network port receives data from spooler and sends a data stream to the
Network Interface Card.
- Network interface card receives it and send to Kernel part.
- Kernel receives this data from Host, and selects emulation t to data and start selected one. After
emulation job ends Kernel sends the output bit-map data to the Engine using Printer Video Controller
(by clock type for LSU).
- Engine print the received data to required paper with the sequential developing process.
The additional printing function are realized in:
(1) Web environment.
(2) Window environment.
On addition, Kernel informs the printing and printer status to end-user made printing job with the Status
Monitor.
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Disassembly and Reassembly
3. Disassembly and Reassembly
3.1 Precautions when replacing parts
3.1.1 Precautions when assembling and disassembling
* Use only approved Samsung spare parts. Ensure that part number, product name, any voltage, current or
temperature rating are correct. Failure to do so could result in damage to the machine, circuit overload, re
or electric shock.
* Do not make any unauthorized changes or additions to the printer, these could cause the printer to
malfunction and create electric shock or re hazards.
* Take care when dismantling the unit to note where each screw goes. There are 19 different screws. Use of
the wrong screw could lead to system failure, short circuit or electric shock.
* Do not disassemble the LSU unit. Once it is disassembled dust is admitted to the mirror chamber and will
seriously degrade print quality. There are no serviceable parts inside.
* Regularly check the condition of the power cord, plug and socket. Bad contacts could lead to overheating
and rfe. Damaged cables could lead to electric shock or unit malfunction.
3.1.2 Preautions when handling PBA
Static electricity can damage a PBA, always used approved anti-static precautions when handling or storing
a PBA.
>> Precautions when moving and storing PBA
1. Please keep PBA in a conductive case, anti-static bag, or wrapped in aluminum foil.
2. Do not store a PBA where it is exposed to direct sunlight.
>> Precautions when replacing PBA
1. Disconnect power connectors rst, before disconnecting other cables
2. Do not touch any soldered connections, connector terminals or other electronic parts when handling
insulated parts.
>> Precautions when checking PBA
1. Before touching a PBA, please touch other grounded areas of the chassis to discharge any static electrical
charge on the body.
2. Take care not to touch the PBA with your bare hands or metal objects as you could create a short circuit
or get an electric shock. Take extra care when handling PBAs with moving parts tted such as sensors,
motors or lamps as they may get hot.
3. Take care when tting, or removing, screws. Look out for hidden screws. Always ensure that the correct
screw is used and always ensure that when toothed washers are removed they are retted in their original
positions.
3.1.3 Releasing Plastic Latches
Many of the parts are held in place with plastic latches. The latches break easily;
release them carefully.
To remove such parts, press the hook end of the latch away from the part to
which it is latched.
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3.2 Screws used in the printer
The screws listed in the table below are used in this printer. Please ensure that, when you disassemble the
printer, you keep a note of which screw is used for which part and that, when reassembling the printer, the
correct screws are used in the appropriate places.
3. Take off the right cover by removing hooks from
its edge.
4. Take off the left cover by removing hooks from
its edge.
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3.4 Scanner unit
Holder-linkHolder-link
Holder-linkHolder-link
Holder-linkHolder-link
Holder-linkHolder-link
Holder-linkHolder-link
1
3
2
1
3
2
1. Remove the right cover.
2. Unplug 4 connectors on the main PBA.
4. Remove the holder link.
5. Release the linker from the rail while pushing it
to the direction of arrow.
3. Release the connectors from the 2 holes.
6. Push the scanner unit to the front. Lift up and
release it.
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3.4.1 OPE unit
1. Open the scanner unit. Remove 2 screws.
2. Pull up the OPE unit.
3. Release the OPE unit after unplugging
2 connectors.
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3.4.2 CIS unit
CIS unitCIS unit
1. Remove the OPE unit. (Refer to 3.4.1)
2. Remove 2 screws.
3. Lift up and release the scan glass.
4. Unplug the at cable from the left.
5. Release the hook from the right.
6. Release the CIS unit.
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3.4.3 Scan motor
CAP-SENSOR
Belt
Shaft
CAP-SCAN
Shaft
Shaft
CAP-SCAN
1. Remove the scan unit. (Refer to 3.4)
2. Turn the scan unit over. Remove the CAPSENSOR after removing 1 screw.
3. Remove the OPE unit and scan glass.
(Refer to 3.4.1~3.4.2)
4. Release the belt.
5. Release the shaft.
6. Release the CAP-SCAN Motor after removing 1
screw.
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CAP-SENSOR
Belt
Shaft
CAP-SCAN
Shaft
CAP-SCAN
7. Remove 3 screws.8. Release the scan motor.
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COVER-OPENCOVER-OPEN
3.5 Middle cover and COVER-OPEN
1. Remove the scanner unit. (Refer to 3.4)
2. Release the link from both sides of the COVEROPEN.
3. Unplug the connector on the main PBA.
4. Lift up and release the middle cover and
COVER-OPEN after removing 4 screws.
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3.6 Front and Rear cover
1. Remove the left and right cover.
(Refer to 3.3)
2. Remove the scanner unit. (Refer to 3.4)
3. Remove the middle cover. (Refer to 3.5)
4. Release the rear cover after removing 4 screws.
5. Release the front cover after removing 2 screws.
3.7 Main PBA
1. Remove the right cover.2. Release the main PBA after removing 4 screws
and all connectors.
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3.8 SMPS / HVPS board
1. To remove the SMPS/HVPS board, rst remove the right/middle/rear cover. (Refer to 3.3~3.6)
2. Remove 4 screws. Unplug all connectors. And release the main-PBA bracket.
3. Remove the SMPS-cover after removing
1 screw.
4. Unplug the fuser connector.
5. Release the SMPS/HVPS board after removing
11 screws.
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3.9 Fuser unit
1. Remove the right / scanner unit / middle / rear cover. (Refer to 3.3~3.6)
2. Unplug the connector on SMPS/HVPS board.
3. Remove 4 screws.
4. Pull the fuser unit to the direction of arrow slightly and release it.
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Frontview
Top view
COVER-LSU
Frontview
Top view
COVER-LSU
Front view
3.10 LSU
1. Remove the all covers. (Refer to 3.3~6)
2. Remove 4 screw securing the COVER-LSU and release the main motor harness.
3. Release the COVER-LSU.
4. Remove 3 screws and 2 at cables. Release the LSU.
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3.11 Drive unit
1. Remove the left cover.
2. Remove 3 screws. Release the drive unit.
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3.12 Step motor
1. Remove the drive unit. (Refer to 3.11)
2. Remove 6 screws. Release the left-frame
bracket.
3. Remove 2 screws. Release the step motor.
Caution
When reassembling the drive unit, put down the
drive unit and assemble the left-frame bracket.
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HookHook
3.13 Pick up roller
1. Open the top cover.
2. Take out the toner cartridge.
3. Push the hinge to the direction of arrow.
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Transfer roller
Driver
Hook
Transfer roller
Driver
Hook
3.14 Transfer roller
1. Open the top cover.
2. Take out the toner cartridge.
3. Pull the shaft to the direction of arrow by driver and release the transfer roller.
Caution - Don’t touch the surface of transfer roller.
Page 59
Alignment and Troubleshooting
11910112345678
1213
4. Alignment and Troubleshooting
4.1 Alignment and Adjustments
This chapter describes the main functions for servicing the equipment, such as the product maintenance
method, image quality proper repair procedures, jam removal procedures, and so on.
4.1.1 Control Panel
This control panel may differ from your machine depending on its model.
1 Power ( )Allows you to turn the power on or off.
2Eco PrintTurn the Eco mode on or off.
3Scan toSends scanned data.
4ID Copy
5Front LED
6Back LED
7DisplayShows the number of pages you want to copy.
8+/- ButtonsAllows you to increase/decrease the number of page you want to copy.
Print Screen
(SCX-3200/3205 only)
9
WPS (SCX-3205W(K) only) Allows you to turn on or off the wireless network connection.
10Stop/Clear (
11Start (
Wireless LED
12
(SCX-3205W(K) only)
13Status LEDShows the status of your machine.
)Stops an operation at any time and there are more functions.
)
Allows you to copy both sides the ID card like a driver’s license to a single
side of paper.
When the LED lights on, place the front side of an ID card facing down on
the scanner glass.
When the LED lights on, place the back side of an ID card facing down on
the scanner glass.
Prints the displayed screen of your monitor.
Begins a printing, copying or scanning job depending on which function you
are using.
Shows the current status of the wireless network connection.
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4.1.2 Understanding the status LED
■ Status LED
The color of the LED indicates the machine’s current status.
STATUS LEDDESCRIPTION
Off• The machine is off-line.
• The machine is in sleep mode.
GreenOn• The machine is in ready mode or warming up.
Blinking• When the LED blinks slowly, the machine is receiving data from the computer or
printing documents.
• When the LED blinks rapidly, the machine is operating special functions.
RedOn• The inner cover is opened. Close the inner cover completely.
• There is no paper in the tray. Load paper in the tray.
• The machine has stopped due to a major error.
• Your system has some problems. If this problem occurs, contact a service
representative.
• A toner cartridge has almost reached its estimated cartridge life
recommended to replace the toner cartridge.
a
. It is
Blinking• A small amount of toner is left in the cartridge. The estimated cartridge lifea of
toner is close. Prepare a new cartridge for replacement. You may temporarily
increase the printing quality by redistributing the toner.
• The machine is printing in manual feed mode or in manual duplex mode.
OrangeOnA paper jam has occurred.
a. Estimated cartridge life means the expected or estimated toner cartridge life, which indicates the average capacity of
print-outs and is designed pursuant to ISO/IEC 19752. The number of pages produced will be affected by the percent
of imaged area of your original. The operating environment, printing interval, media type, and media size, may also
affect the number of pages produced by your cartridge. Some amount of toner may remain in the cartridge even when
red LED is on and the printer stops printing.
■ Wireless LED
WIRELESS LED STATUSDESCRIPTION
BlueOff
On
Slowly blinks
Quickly blinks
Wireless network is disconnected.
Wireless network is connected.
The machine starts connecting to a wireless network.
• The machine is connecting to access point (or wireless router).
• Wireless network connection is being disconnected.
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1 Scan unit
2 Inner cover
2
1
1Scanunit2Innercover
2
1
1Scanunit2Innercover
2
1
4.1.3 JAM Removal
4.1.3.1 Clearing Paper Jams
If a paper jam occurs, the Status LED on the control panel lights orange. Find and remove the jammed paper.
To avoid tearing the paper, pull the
jammed paper out slowly and carefully.
Follow the instructions in the following
sections to clear the jam.
In tray
2. Close the inner cover and the scan unit in order.
The jammed paper is automatically ejected from
1. Open the scan unit rst, and then the inner
cover.
the machine.
If the paper does not eject, go to the next step.
3. Remove the jammed paper by gently pulling it
straight out.
If the paper does not move when you pull, or
if you do not see the paper in this area, check
inside the machine.
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Inside the machine
1.
Open the scan unit rst, and then the inner
cover.
4. Remove the jammed paper by gently pulling it
straight out.
If you do not see the paper in this area, go to the
next step.
5. Open the inner cover.
2. Close the inner cover and the scan unit in order.
The jammed paper is automatically ejected from
the machine.
If the paper does not eject, go to the next step.
3. Open the scan unit.
6. Open the fuser unit cover.
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7. Remove the jammed paper by gently pulling it
straight out.
If you do not see the jammed paper, go to the
next step.
8. Pull the toner cartridge out.
9. Remove the jammed paper by gently pulling it
straight out.
10. Insert the toner cartridge back into the machine.
11. Close the inner cover and the scan unit in
order. Printing automatically resumes.
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Press Menu Button.
4.1.4 EDC mode
4.1.4.1 Entering the EDC mode
In EDC mode, the technician can check the particular component of the printer are properly functioning
■ Method to enter
1. Connect only one printer to the computer using USB cable.
2. Power up the printer and wait for the printer to nish initializing.
3. Start EDC utility, see page 66.
4. To get out of the EDC Mode, Press the “Exit” button.
* Allow 1 second for the printer to process the command from EDC before pressing then next button.
■ Menu Map
0. Check Cover Status
1. Check Sensor Status
2. Test Motor
3. Test Fan
4. Test Clutch & Solenoid
5. Fuser Control
6. LSU Control
7. DEV Control
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4.1.4.2 EDC mode menu conguration
0. Cover Status
ItemDescription
Front CoverWhen the front cover opened, “Open” message display LCD. If the front cover
closed, “Closed” message display LCD.
1. Sensor Status
ItemDescription
Regi / Feed / Exit
Sensor
If actuator is checked by sensor, "With Paper" message will be displayed. if not,
"Without Paper" will be displayed.
EmptyIf paper exists in the tray, “Present" will be displayed. If not, “Empty" will be.
2. Motor Test
ItemDescription
Main Mtr Nor.If “Enter” button is pushed after “ON” displayed, motor will be run. Main motor will
auto - stop after 60 seconds and ”OFF” message will be displayed.
3. Fan Test
ItemDescription
Fuser FanIf “Enter” button is pushed after “ON” displayed, fan will be run. Fuser fan will
auto - stop after 10 seconds and ”OFF” message will be displayed.
4. Clutch Test
ItemDescription
Pick up Clutch When “OK” key is pushed after ”ON” message displayed, clutch turn on. pick up
clutch will be turn off after 3 seconds and ”OFF” message will be displayed.
5. Fuser Ctrl
ItemDescription
Temp ControlFuser on and off. “ON” is selected, fuser will be active and display the fuser
temperature [XXX] but “OFF” is selected, fuser will be stop.
Fuser Temp.Fuser temperature displayed on LCD (example: [170] )
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6. LSU Control
ItemDescription
LD Power When “Enter” button is pushed after ”ON” message displayed, ”OFF” message
will be displayed after 10 seconds
LSU MotorIf “Enter” button is pushed after “ON” displayed, motor will be run. LSU motor will
auto - stop after 10 seconds and ”OFF” message will be displayed.
LSU ReadyIf “Enter” button is pushed after “ON” displayed, motor will be run. ”1” message
will be displayed.
HsyncIf “Enter” button is pushed after “ON” displayed, motor will be run. ”1” message
will be displayed.
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4.1.5 Tech mode
4.1.5.1 Entering the Tech mode
■ Enter Tech mode
Press key continuously in idle mode
Up → Up → Stop → Down → Down → Stop → Stop
After machine entered tech mode, 7 segment is displayed as following gures
■ Exit Tech mode
- Press “Stop / Clear“ Key in tech mode
- Power Off/On
- Automatically machine will exit tech mode if user does not press any key in 30 seconds
■ Exceptional case
- We can’t enter tech mode while machine is working such as printing/scanning/copying
- In case of shading, machine does not work shading, just print data only
7
Scanner Aging Start (SA)
- when you press “stop / clear” key, then it will be stop
8
Factory Memory Clear (FC)
9
Toner Low Level Control
4.1.5.2 Tech mode menu conguration
■ Tech mode menu conguration
■ Usage Counter Report
We can know customer mostly uses machine for what kind of job and estimates particular unit life status.
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■ Shading Report
We can know there is error in scanner device.
(For more detail contents, refer to S3-3122 error codes page)
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■ Supplies Info Report
We can know consumable unit life status and toner using status.
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■ Event Log Report
We can know which kinds of errors has occurred and its history.
■ Customer Assistance Report
It give brief information to know how to memory clear and FW upgrade.
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■ Conguration Report
We can check various SW version and current machine setting status.
In order to print, press more than 2 seconds in idle status and release button when status green LED is
blinking slowly.
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■ Network Conguration Report
We can check wired/wireless network information and setting values.
In order to print, press more than 4 seconds in idle status and release button when status green LED is
blinking fast. It just supports wireless machine model.
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■ All Report
Machine automatically print out all kind of report including Conguration and network conguration report.
■ Toner Low Level Control
Machine check dot counts every printing cases and store status to non-volatile memory. If remaining dot
count reaches below 10%, machine will blinking red status LED.
The rate of toner low level can be changed using this feature.
1. Select “LC” menu in tech mode
2. Select number using Up/Dn key
- Available range 1%~30%
3. Select Start Key
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4.1.6 Upgrade Firmware
4.1.6.1 Upgrade rmware using USB port
[upgrading preparations]
- USBList.exe : Tool which sends rmware data to printer.
- Firmware le to upgrade
[Upgrade Procedure]
1. Connect USB cable to printer
2. Open DOS prompt and change path
3. Check preparation exist or not using “dir” command
4. Input command “usblist2.exe <rmware lename>”
5. rmware will be downloaded and machine starts upgrading
6. At this time, LED of machine is looping until upgrading is completed
7. When upgrading is completed, machine is automatically re-booting.
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4.1.6.2 Upgrade rmware using Network
[upgrading preparations]
- Wired or Wireless Network connection is established
- Firmware le to upgrade
[Upgrade Procedure]
1. Open Web-browser and input IP address of machine
2. Log-in Admin Mode
ID: Admin, PW: sec00000
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3. Select Maintenance menu and click “upgrade wizard”
4. Select rmware le using “browser” button and press next button.
5. SyncThru will check verify rmware le and compare version and press next button.
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6. Machine starts upgrading. SyncThru will return home page after upgrading is completed.
Page 79
Alignment & T
r
n
e
d
o
r
T
providesinterfacetousersinformationofnetworked
c
c
m
t
h
1) Click Direct Print Configuration in the pop up wind
0
printersandallowtoconfigurethesettingofprinters
when clicking Direct Print
4.1.6.3 Using SyncThru Web Service (SWS)
oubleshooting
SWS is an embedded web server in the machine. This
version, status and allows you to customize the machi
wireless network using your web browser in the remot
Connecting preparations
• Wired or Wireless Network connection is establishe
• Web Browser (Ex> Internet Explorer) Program on y
SWS overview
SyncThru Web Service (SWS)
- accepts HTTP request via port 80 as normal web se
-
- is able to provide more complicated options than Lo
HT
http://10.240.9.170
web server informs you of machine configuration,
e’s settings. You can connect this server via wired and
place.
.
ur PC network connected
vers.
al UI for printer configuration
Web Server
P
IP: 10.240.9.170
User
Connection Procedure
1) Open the Web-browser and input IP address of ma
2) Log-in Admin Mode. (ID: admin, PW: sec00000)
3) Select pages to check the configuration and custo
.
Caution
Please, change SWS Default ID and Password for sys
Note:
If the machine supports ‘Direct Print’, you can enable t
configuration is ‘Disabled’ for your security.
Firstly, you have to login to SWS.
‘
2) In the ‘Services’ Menu, check ‘Direct Print’.
’
hine. Click “Login”.
ize the settings
em security in case of your first connection .
is function using the SWS menu. The default
‘
’
Service Manual
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r
0
Or,
1) Click ‘System Security’ in the ‘Security’ menu.
2) Select ‘Feature Management’ in the left frame.
3)In the ‘Services’ Menu, check ‘Direct Print’.
oubleshooting
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SAMSUNG ELECTRONICS
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4
1
2
6
7
3
5
4.1.7 Periodic Defective Image
If an image defects appears at regular intervals on the printed-paper, it is due to a faulty or damaged roller.
Refer to the table below and check the condition of the appropriate roller.
RollerPeriod (mm)PhenomenonDefective part
OPC Drum 62.9mm White and Black Spots Toner Cartridge
Developing Roller 35.1mm White spot, Horizontal black band
Charging Roller 26.7mm Black Spot and line and periodic band
Supply Roller 47mm Periodic Band by little difference of density
Transfer Roller 39.2mm Ghost, Damaged image by abnormal transfer Transfer roller
Pressure Roller 75.4mm Background Fuser
Fusing Roller 77.5mm Black spot and image ghost
Before attempting to repair the printer rst obtain a detailed description of the problem from the customer.
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Class1Char.Example
Actuators
A1 �12 �10 (Fuser Motor Unexpected Operation)(Blue MT is not used)
Consumables
C1 �11 �10 (Toner Low)
MediaHandlingSystem Option
H1 �11 �11 (HCF Paper Jam)(Blue MT is not used)
Medial HandlingSystem
M1 �51 �12 (Tray 1 Paper Empty)
PeripheralSystemNotdefined yet.
System
S2 �41 �10 (Cover Open)
Marker Units
U1 �21 �13 (Fuser Low Error)
Class 1Char.Example
Actuators
A1 → 12 → 10 (Fuser Motor Unexpected Operation)
(Blue MT is not used)
Consumables
C1 → 11 → 10 (Toner Low)
Media Handling System Option
H1 → 11 → 11 (HCF Paper Jam)
(Blue MT is not used)
Medial Handling System
M1 → 51 → 12 (Tray 1 Paper Empty)
Peripheral SystemNot defined yet.
System
S2 → 41 → 10 (Cover Open)
Marker Units
U1 → 21 → 13 (Fuser Low Error)
4.2.2 Error code and troubleshooting
4.2.2.1 Display Error Code using key combination
■ Enter Error Code Display Mode
In idle mode, press key as following sequence:
Power → Up → Down → Power → Power
■ Exit Error Code Display Mode
There are two kinds of mode to exit error code display mode.
1. Press cancel key in error code display mode
2. Automatically return to idle mode after display all error codes
■ Error Code Display Procedure
When you enter error code display mode, machine will display error code as follows:
First Code 2 Bytes (XH XL) → Second Code 2 Bytes (Y0 Y1) → Third Code 2 Bytes(Y2 Y3 )
- Each data interval time is 2 seconds.
- Error code repeats 3 times for one error code
- If machine has no error, machine just blink “00” LED one time.
- If machine has multiple error codes, it will display each by each
■ Error Code Character
Because machine has restriction to display characters of error codes, following information will be help
to understand error codes.
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4.2.2.2 Error code list
Error CodeError MessageTroubleshooting Page
C1-1110Prepare new toner cartridge.4-25 page
C1-1120Replace with new toner cartridge.4-26 page
C1-1130End of life, Replace with new toner cartridge.4-27 page
C1-1411Toner cartridge is not installed. Install the cartridge.4-28 page
C1-1512Toner cartridge is not compatible. Check user's guide.4-29 page
M1-1713Paper jam in tray.4-30 page
M1-5712Paper is empty in tray. Load paper.4-31 page
M2-1114Paper jam inside of machine.4-32 page
M3-2130Out-Bin Full4-33 page
S2-4110Door is open. Close the door.4-34 page
S3-3121Scanner Locked Error4-35 page
S3-3122Scanner Shading Error4-36 page
S6-3121Wireless Network not installed4-37 page
S6-3123IP Address conict4-38 page
U1-2113Fuser Unit Failure #U1-2113. Please turn off then on.4-39 page
U1-2131Fuser Unit Failure #U1-2131. Please turn off then on. 4-40 page
U1-2141Fuser Unit Failure #U1-2141. Please turn off then on.4-41 page
U2-5111Black LSU Unit Failure: #U2-5111. Please turn off then on.4-42 page
U2-5113Black LSU Unit Failure: #U2-5113. Please turn off then on.4-43 page
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4.2.2.3 Troubleshooting for error code
● Code :
C1-1110
● Symptom / Cause :
● Error message :
Prepare new toner cartridge.
A small amount of toner is left in the cartridge.
Status LED : Red blinking.
● Troubleshooting method :
1. Turn the machine off and turn it on again.
2. Print the supply information report.
Check the life remaining of the toner cartridge. (under 10% remaining)
If its life is at the end, turn the machine off and replace the toner cartridge with new one.
** Supply information report can be available in tech mode.
In order to enter tech mode, please refer to 4.1.5
● Replacement part
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● Code :
C1-1120
● Symptom / Cause :
● Error message :
Replace with new toner cartridge.
A toner cartridge has almost reached its estimated cartridge life.
Status LED – Red is on.
● Troubleshooting method :
1. Turn the machine off and turn it on again.
2. Print the supply information report.
Check the life remaining of the toner cartridge.
If its life is at the end, turn the machine off and replace the toner cartridge with new one.
** Supply information report can be available in tech mode.
In order to enter tech mode, please refer to 4.1.5
● Replacement part
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● Code :
C1-1130
● Symptom / Cause :
● Error message :
End of life, Replace with new toner cartridge.
The toner cartridge is at the end of its life.
Status LED – Red is on.
● Troubleshooting method :
1. Turn the machine off and turn it on again.
2. Print the supply information report.
Check the life remaining of the toner cartridge.
If its life is at the end, turn the machine off and replace the toner cartridge with new one.
** Supply information report can be available in tech mode.
In order to enter tech mode, please refer to 4.1.5
● Replacement part
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● Code :
C1-1411
● Symptom / Cause :
● Error message :
Toner cartridge is not installed. Install the cartridge.
The data of CRUM is not detected.
1. Toner cartridge is not placed in the set.
2. Physical obstacle is jamming the electronic signal through the modular jack.
3. The signal from set is not proper.
● Troubleshooting method :
1. Open the scan unit. 2. Open the inner cover.
3. Insert the toner cartridge into the machine.
● Replacement part
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● Code :
C1-1512
● Symptom / Cause :
● Error message :
Toner cartridge is not compatible. Check user’s guide
Toner cartridge is not compatible. Machine doesn’t print.
● Troubleshooting method :
1. Print the supply information report.
Check information of the toner cartridge.
2. If the toner cartridge is not a Samsung genuine toner cartridge, replace with new one.
** Supply information report can be available in tech mode.
In order to enter tech mode, please refer to 4.1.5.
● Replacement part
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● Code :
M1-1713
● Symptom / Cause :
● Error message :
Paper jam in tray 1.
Paper transport jam. (paper Input section)
- The paper has not reached the tray1 feed sensor within predetermined time after pick up.
- Status LED : Orange color is on.
● Troubleshooting method :
JAM in the tray
1. Open the scan unit rst and then the inner
cover.
3. If the paper does not eject, remove the jammed
paper by gently pulling it straight out.
2. Close the inner cover and the scan unit in order.
The jammed paper is automatically ejected from
the machine.
● Replacement part
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● Code :
M1-5712
● Symptom / Cause :
● Error message :
Paper is empty in tray 1 Load paper.
There is no paper in the tray.
Status LED –Red color is on.
● Troubleshooting method :
1. Open front door and pinch the paper length
guide and pull it out to extend the tray.
3. Load paper with the print side facing up. Make
sure that all four corners are at in the tray.
2. Flex or fan the edge of the paper stack to
separate the pages before loading the paper.
Insert the paper into the tray.
● Replacement part
4. Pinch the paper length guide to adjust the guide
so that it is ush up against the rear edge of the
paper; then pinch the paper width guides so
they are ush against the sides of the paper.
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● Code :
M2-1114
● Symptom / Cause :
● Error message :
Paper jam in tray 1.
Paper transport jam. (paper Input section)
- The paper has not reached the tray1 feed sensor within predetermined time after pick up.
- Status LED : Orange color is on.
● Troubleshooting method :
1. Open the scan unit.
2. Remove the jammed paper by gently pulling it straight out.
If you do not see the paper in this area, go to the next step.
1. Open the inner cover.
2. Open the fuser unit cover.
3. Remove the jammed paper by gently pulling it straight out.
If you do not see the jammed paper, go to the next step.
1. Pull the toner cartridge out and remove the jammed paper by gently pulling it straight out.
2. Insert the toner cartridge back into the machine.
3. Close the inner cover and the scan unit in order. Printing automatically resumes.
● Replacement part
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● Code :
M3-2130
● Symptom / Cause :
● Error message :
Out-Bin Full.
Too much paper in output bin tray or the bin full sensor actuator or sensor is defective.
Status LED – Red is on.
Printer does not print
● Troubleshooting method :
1. Remove paper from the output tray.
The machine resumes printing.
Machine can hold up to 50 sheets (80 g/m2) of plain paper.
In order to prevent Out-bin full error again, use output tray guide such as following picture.
● Replacement part
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Cover
Open Switch
Cover
Open
Switch
● Code :
S2-4110
● Symptom / Cause :
● Error message :
Door is open. Close the door.
door is open or door sensor is defective
Status LED – Red is on
● Troubleshooting method :
1. Check whether the door is closed perfectly.
2. Check the cover open switch on the HVPS is operated properly.
If it is defective, replace the HVPS board.
● Replacement part
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ScannerMotorScanner Motor
● Code :
S3-3121
● Symptom / Cause :
● Error message :
Scanner locked error.
The scanner can’t work properly.
When moving the scanner, an abnormal home position checking of the sensor is occurred.
Home position could not be checked because of abnormal symptoms or stop of scan motor stall.
● Troubleshooting method :
1. Power Off/On
2. Check situation is same or not. usually scanner locked error would be cleared.
3. If scanner locked error is still not cleared, check if the home sensor or scanner motor is operated properly.
● Replacement part
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● Code :
S3-3122
● Symptom / Cause :
● Error message :
Scanner Shading Error.
Machine does not copy properly. (it can be print white paper)
/Scanner can’t make shading data because of following reason:
- AFE detection is failed
- Shading check sum is failed
- Scanner CIS is defective
- Scanner Motor not working
● Troubleshooting method :
1. Enter tech mode. (refer to 4.1.5)
2. Select “SD” menu using Up/Dn key.
3. Press Start Key.
Shading report will be printed such as below images after machine starting scan shading.
4. Check shading report
if result of waveform for each color is irregular or very low level, try again 2~3.
if result is still produced even though try again, change CIS or main board.
※ Shading normal result
Caution
Actually, there are two kinds of method to print
shading report. One is using “SD” menu, the other is
using “AA” menu (All Report).
As soon as machine is booting up, if you choice
second one menu(AA), report is printed without
shading. At this time, result is shown only black
shading.
● Replacement part
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● Code :
S6-3121
● Symptom / Cause :
● Error message :
Wireless Network not installed.
Machine does not detect wireless network card even thought card is connected physically.
This error is occurred when machine booting up.
● Troubleshooting method :
1. Check Network conguration Report.
2. Check wireless card connector is inserted to socket well.
3. Replace wireless card module to new one.
※ Reference
If wired network cable is connected, wireless does not work even though all of setting is completed and it has
no H/W errors.
Please check it without wired network cable.
● Replacement part
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● Code :
S6-3123
● Symptom / Cause :
● Error message :
IP address conict.
Machine IP address is conict to other machine.
Machine can’t print data from Host PC. (Copy/Report can work)
● Troubleshooting method :
Change IP address.
** IP Change Method
1. Connect USB
2. Execute PSU
3. Select Network Conguration Menu
4. Change IP
5. Press “adapt” button
● Replacement part
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● Code :
U1-2113
● Symptom / Cause :
● Error message :
Fuser Unit Failure #U1-2113 : Turn off then on.
Fuser Unit is transferred Power.
● Troubleshooting method :
1. Turn the machine off and turn it on again.
2. Check the following :
A. Check the power voltage of the fuser unit. (110V, 220V)
B. Check if the Heat lamp is broken.
C. Check if the AC connection of Heat lamp is disconnected or contaminated.
D. Check if the thermostat is blown.
E. Check if there is any jammed paper in fuser unit.
F. Check if the power voltage is normal. (Is the voltage during the operation ±10% of the rated voltage?)
3. If the problem persists, replace the fuser unit.
4. If the problem persists after replacing the fuser unit, replace the engine board or SMPS.
● Replacement part
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● Code :
U1-2131
● Symptom / Cause :
● Error message :
Fuser Unit Failure #U1-2131 : Turn off then on.
The Fuser is being diagnosed for Low Heat Error.
● Troubleshooting method :
1. Turn the machine off and turn it on again.
2. Check the following :
A. Check the power voltage of the fuser unit. (110V, 220V)
B. Check if the Heat lamp is broken.
C. Check if the AC connection of Heat lamp is disconnected or contaminated.
D. Check if the thermostat is blown.
E. Check if there is any jammed paper in fuser unit.
F. Check if the power voltage is normal. (Is the voltage during the operation ±10% of the rated voltage?)
3. If the problem persists, replace the fuser unit.
4. If the problem persists after replacing the fuser unit, replace the engine board or SMPS.
● Replacement part
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