4.2.8 Major Problems Trouble shooting …………………………4-53
4.2.9 Fax & Phone Problems (only 4 in 1) ………………………4-67
4.2.10 Copy Problems ……………………………………………4-76
4.2.11 Scanner, OPE problems …………………………………4-80
chapter 5System diagram
5.1 Block Diagram ……………………………………………………5-1
5.2 Connection diagram (4 in 1) ……………………………………5-2
Connection diagram (3 in 1) ……………………………………5-3
chapter 6Reference information
6.1 Tools for Troubleshooting ………………………………………6-1
6.2 Acronyms and Abbreviations ……………………………………6-2
6.3 Select a location for the printer …………………………………6-4
6.4 A4 ISO 19752 Standard Pattern …………………………………6-5
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.
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Precautions
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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.
(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.
Precautions
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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 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.
Precautions
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Samsung Electronics
1.2.5 Disregarding this warning may cause bodily injury
(1) Be careful with high temperature components.
The fuser unit works at a high temperature. Use caution when working on the product. Wait for the fuser
to cool down before disassembly.
(2) Be careful when working around the rotating parts.
When operating a product, keep all bodily items and clothing away from moving parts [e.g. ngers, hair,
tie, etc.] (Paper feeding entrance, motor, fan, etc.).
(3) When moving the product :
- When transporting/installing the equipment, employ four persons and be sure to hold the lifting handles.
- Be sure not to hold the movable parts or units (e.g. the control panel, DADF) when transporting the
equipment.
- Be sure to use a dedicated outlet with 110V/220V power input.
- The equipment must be grounded for safety.
- Select a suitable place for installation. Avoid excessive heat, high humidity, dust, vibration and direct
sunlight.
- Provide proper ventilation since the equipment emits a slight amount of ozone.
- The equipment must be installed near the socket outlet and must be accessible.
- Be sure to x and plug in the power cable securely after the installation so that no one trips over it.
Precautions
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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.
Product spec and feature
2. Product spec and feature
2.1 Product Specications
2.1.1 Product Overview
Concept
Target
CLX-3185FN/3185FW (4 in 1 model)CLX-3185/3185N/3185W (3 in 1 model)
1. Speed
- Mono : Up to 16 ppm in A4 (17 ppm in Letter)
- Color : Up to 4 ppm in A4 (4 ppm in Letter)
2. Printing Resolution
- Max. 2400x600 dpi effective output
3. Processor
- CHORUS3 (360Mhz), Proprietary SOC
4 Printer language emulation :
SPL-Color (3185)/SPL,PCL-Color(3185N/W/FN/FW)
The smallest & quietest C-MFP in the world
Home & SOHO
5. Memory : 128MB(3185)/256MB(3185N/W/FN/FW)
6. One 10/100 base Tx Network connector (3185N/W/
FN/FW)
Wireless LAN: 802.11b/g/n (3185W/FW)
7. Toner cartridge
- Black : 1K (initial) / 1.5K (sales)
- Color : 0.7K (initial) / 1K (sales)
8. Cassette 150 sheets
ADF 15 sheets (3185FN/FW)
9. Color : Black
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Product spec and feature
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Samsung Electronics
2.1.2 Prouduct Specication
Specications are correct at the time of printing. Product specications are subject to change without notice.
See below for product specications.
2.1.2.1 General Specications
ItemCLX-3185/3185N/3185WCLX-3185FN/3185FW
Major FeaturesMulti-Pass Color LaserMulti-Pass Color Laser
2400dpi class2400dpi class
USB2.0USB2.0
Ethernet 10/100 Base-TxEthernet 10/100 Base-Tx
Size (W*D*H) 415 x 360 x 311 mm415 x 373 x 342mm
Net Weight (Including Toner Cartridge)
MPUCHORUS3-360MHzCHORUS3-360MHz
14.3kg15.2kg
Power
Consumption
Power Supply Input VoltageLow Voltage : 110 ~ 127VAC
This chapter describes the functions and operating principles of the main components.
2.2.1 System Structure
The CLX-3185 series is roughly made up a Main Controller part (Main PBA), an Operation Panel part, a
Scanner part, a Fax part, and a Power part. Each part is separated modules which focus on common and
standard design of different kind products. The Main controller part is composed of one CPU and one Board
and works to control all the parts for printing, copying, scanning and faxing. The Operation Panel part is for
User’s interface. The Scanner part is composed of an ADF and a Platen and is connected with the Main
Controller by Harnesses. The Fax part and the ADF scanner part are not populated in the Model of CLX-3185
and CLX-3185N.
2.2.1.1 Main Parts of System
■ CLX-3185/3185N
- Front view
This illustration may differ from your machine depending on its model.
1Scanner lid5Front door9Waste toner container
2USB port
3Tray 17Control panel11Scanner glass
4Front door handle8Toner cartridges12Scan unit
a. CLX-3185N/W only
a
6Output support10Imaging unit
Product spec and feature
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Samsung Electronics
1
2
3
5
4
- Rear view
This illustration may differ from your machine depending on its model.
1Rear door handle4USB port
2Rear door5Network port
3Power cord receptacle
a. CLX-3185N/W only
a
Product spec and feature
Service Manual
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Samsung Electronics
■ CLX-3185FN/CLX-3185FW
5
9
10
8
7
6
4
2
3
1
11
13
12
15
14
16
- Front view
This illustration may differ from your machine depending on its model.
• Feeding Capacity : Cassette 150 Sheets(75g/㎡, 20lb Pa per Standard)
• No Manual Feeder
• Paper Detecting Sensor : Photo Sensor (Empty, Registration, Exit)
• Paper Size Sensor : None
②
LSU(Laser Scan Unit)
The LSU unit is controlled by video controller. It scans the video data received from video controller with
laser beam by using the rotation principle of the polygon mirror to create the latent image on the OPC
drum. It is the core part of LBP.
The OPC drum rotates as the same speed as the paper feeding speed. It creates the /HSYNC signal and
sends it to the engine when the laser beam of the LSU reaches the end of the polygon mirror, and the
engine detects the /HSYNC signal to arrange the vertical line of the image on the paper. After detecting
the /HSYNC signal, the image data is sent to the LSU to arrange the its margin on the paper.
• Consisted of LD(Laser Diode) and Polygon Motor Control.
Error Phenomenon
Polygon Motor Error The Rotation of Polygon Motor can not reach stable
Hsync Error Though the rotation of Polygon Motor reach stable, the signal of Hsync is
not occurred
Product spec and feature
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Samsung Electronics
③
2nd Transfer Ass’y
• The life span: Print over 100,000 sheets (in 15~30 )
④
Fuser Ass’y
This unit consists of Heat Roller, a Thermostat and a Thermistor. It melts and fuses the toner, transferred
by the transfer roller onto the paper, by applying pressure and high temperature to complete printing job.
* Heat Lamp : Kunckle Type
* Fusing system : 3-Roll Fusing type
When a heat lamp is overheated, a Thermostat cuts off the main power to prevent over-heating.
- Non-Cotact type Thermostat
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.
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.
Product spec and feature
Service Manual
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Samsung Electronics
⑤ & ⑥
ITB(Intermediate Transfer Belt) & 1st Transfer Roller
• The life span: Print over 100,000 Images
• The ITB unit includes 1st Transfer Roller
⑦
Imaging Unit
• The life span: Print over 24,000 Images (Both)
• Imagine Unit includes OPC (Organic Photo-Conductor) Drum
⑧
Toner cartridges
• The life span: Color -> 700(initial)/1000(sales) images (Std. ISO 19798 Print-Out)
Black -> 1000(initial)/1500(sales) images (Std. ISO 19798 Print-Out)
• Each Toner Kit consists of Developer and Deve. Main Frame
⑨
Driver Ass’y
• It is a power delivery unit by gearing
• By driving the motor, it supplies the power to the feeding unit, the fusing unit, and the distributing unit.
Product spec and feature
Service Manual
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Samsung Electronics
⑪
Fax
Implemented by based on the SiLab DAA (Data Access Arrangement) Solution, and is roughly composed
of two Chip Solution
• Si2435 (Modem) A Modem Chip which embeds SSD (System Side Device) for interfacing between LSD
and DIB of Si2435 Core
• Si3018 (DAA) A LIU (Line Interface Unit) Chip which is controlled by SSD and satises each PSTN
Requirements by modulating internal Conguration with connecting Tel Line.
1) Modem Part
- BLOCK DIAGRAM
Implemented by based on Conexant DAA (Data Access Arrangement) Solution, and is roughly composed of
two kinds Chip Solution
- CX86710 (SFX336) : Existing Modem Chip which adds SSD (System Side Device) for interfacing between
LSD and DIB of FM336Plus Core
- CX20493 (LSD) : LIU (Line Interface Unit) Chip which is controlled by SSD and satises each PSTN
Requirements by modulating internal Conguration with connecting Tel Line
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