samsung scx-4824fn-xbh 4828fn sm
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Service Manual
DIGITAL LASER MFPModel : SCX-4824FN/XBH
Basic : SCX-4824FN/SCX-4828FN
- Print/Copy Speed
SCX-4824FN : 24 ppm (A4) / 24 cpm (A4)SCX-4828FN : 28 ppm (A4) / 28 cpm (A4)
- Print resolrution
: 1200 dpi effective output
- CPU : 360 Mhz
- PCL5e, PCL6, IBM ProPrinter, EPSON PS(4828FN)
- Memory
SCX-4824FN : 64MB(Max. 320MB)SCX-4828FN : 128MB(Max. 384MB)
- ADF : 30(4824FN) / 50(4828FN) Sheet
- MP : 1 Sheet
- Toner : 2K(Initial)/ 5K(Sales)
The
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Samsung Electronics Co.,Ltd. September. 2008
Printed in Korea.
VERSION NO. : 1.00 CODE : 4824-FN0XBH
GSPN (Global Service Partner Network)
North America : service.samsungportal.com
Latin America : latin.samsungportal.comCIS : cis.samsungportal.com
Europe : europe.samsungportal.comChina : china.samsungportal.com
Asia : asia.samsungportal.com
Mideast & Africa : mea.samsungportal.com
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1.1 Safety Warning 1-1
1.2 Caution for safety 1-2
1.3 ESD Precautions 1-5
1.4 Super Capacitor or Lithium Battery Precautions 1-5
3URGXFW6SHFLFDWLRQV 2-1
2.1.1 Product Overview 2-1
6SHFLFDWLRQV 2-2
2.1.3 Model Comparison 2-9
2.2 Summary of Product 2-10
2.2.1 Printer Components 2-10
2.2.2 System Layout 2-12
(QJLQH+:6SHFLFDWLRQV 2-16
2.2.4 S/W Descriptions 2-27
3.1 Disassembly and Reassemblyons on Disassembly 3-1
3.1.1 Screws used in the printer 3-2
3.2 General Disassembly 3-3
3.2.1 Front Cover 3-3
3.2.2 Rear Cover 3-3
3.2.3 Right/Left Cover 3-4
3.2.4 Scan and ADF Assy 3-5
3.2.5 Middle Cover 3-9
3.2.6 Fuser 3-9
3.2.7 LSU 3-10
3.2.8 Main Drive Assy 3-10
3.2.9 HVPS/SMPS/Main board 3-11
chapter 1 Precautions
chapter 2 Product spec and feature
Contents
chapter 3 Disassembly and Reassembly
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3.2.10 Transfer roller 3-12
3.2.11 Holder Pad unit 3-13
4.1 Alignment and Adjustments 4-1
4.1.1 Control Panel overview 4-1
4.1.2 Understanding The Status LED 4-2
4.1.3 Paper path 4-3
4.1.4 Menu Map 4-10
4.1.5 Tech Mode 4-12
4.1.6 EDC Mode 4-17
4.1.7 Abnormal Image Printing and Defective Roller 4-23
4.1.8 Error Message 4-24
4.2 Troubleshooting 4-28
4.2.1 Procedure of Checking the Symptoms 4-28
4.2.2 The cause and solution of Bad image 4-29
4.2.3 The cause and solution of the bad discharge 4-454.2.4 The cause and solution of the malfunction 4-53
4.2.5 The cause and solutions of bad environment of the software 4-62
4.2.6 Fax & Phone Problems 4-66
4.2.7 Copy Problems 4-75
4.2.8 Scanning Problems 4-79
Thumbnail 5-2
5.1 Main 5-3
5.2 Cover Assy 5-5
5.3 Cover Middle 5-7
5.4 Frame 5-9
5.5 Main Drive 5-15
5.6 Scan Assy 5-17
chapter 4 Alignment & Troubleshooting
Contents
chapter 5 Exploded Views & Parts List
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5.7 ADF Assy 5-19
5.8 Platen Assy 5-21
5.9 OPE Unit 5-23
5.10 Duplex Unit 5-25
5.11 Fuser 5-27
5.12 Cassette 5-30
5.13 SCF 5-32
6.1 Block Diagram 6-1
6.2 Connection Diagram 6-2
7.1 Tool for Troubleshooting 7-1
7.2 Acronyms and Abbreviations 7-27.2.1 Acronyms 7-2
7.2.2 Service Parts 7-4
7.3 The Sample Pattern for the Test 7-8
7.4 Selecting a location 7-9
Contents
chapter 6 System Diagram
chapter 7 Reference Information
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Precautions
Service Manual1-1
Samsung Electronics
In order to prevent accidents and to prevent damage to the equipment please read the precautions listedbelow carefully before servicing the printer and follow them closely.
1.1 Safety Warning
(1) Only to be serviced by appropriately qualied service engineers.
High voltages and lasers inside this product are dangerous. This printer should only be serviced by a
suitably trained and qualied service engineer.
(2) Use only Samsung replacement parts
There are no user serviceable parts inside the printer. Do not make any unauthorized changes or
additions to the printer, these could cause the printer to malfunction and create electric shock or re haz-ards.
(3) Laser Safety Statement
The Printer 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 con-forming to the
requirements of IEC 825. Class I laser products are not considered to be hazardous. The laser system
and printer 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 printer 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 toreduce risk of re, electric shock, and injury to persons.
1. Precautions
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Precautions
Service Manual1-2
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 Drum cartridge and Toner Cartridge away from children. The toner powder contained in the
Drum cartridge and Toner Cartridge may be harmful and if swallowed you should contact a doctor.
1.2.2 Electric Shock and Fire 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 printer and potentially cause a re or
electric shock.
(2) Use only the power cable supplied with the printer. 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 printer, this can cause electric shock. Do not allow
paper clips, pins or other foreign objects to fall into the printer 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 printer remove the power plug from the wall socket.(6) Use caution when inserting or removing the power connector. The power connector must be inserted
completely otherwise a poor contact could cause overheating possibly leading to a re. When removing
the power connector grip it rmly and pull.
(7) Take care of the power cable. Do not allow it to become twisted, bent sharply round corners or other
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 or exposed cables could cause an electric shock. Replace a 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 lightening storms. Samsung recommend that this machine be disconnectedfrom 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 printer in a clean well ventilated location. Do not position the
machine near a humidier. Damp and dust build up inside the machine can lead to overheating and
cause a re.
(11) Do not position the printer in direct sunlight. This will cause the temperature inside the printer to rise
possibly leading to the printer 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.
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Precautions
Service Manual1-3
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
printer
(1) 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.
(2) The printer 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 printer
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 printer in such areas.
(5) Do not place candles, burning cigarettes, etc on the printer, These could cause a re.
1.2.4 Assembly / Disassembly Precautions
Replace parts carefully, 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 printer 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 mainboard or network card is replaced.
(2) Ensure that power is disconnected before servicing or replacing any electrical parts.
(3) Disconnect printer 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 mins can damage the surface? photoconductive properties
and will result in print quality degradation. Take extra care when servicing the printer. 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.
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Precautions
Service Manual1-4
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 tocool 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 do, you can get harm.
(3) When you move the printer
- When transporting/installing the equipment be sure to hold the positions as shown in the reference
chapter.
The equipment is quite heavy and weighs approximately 13.6 Kg (including consumables), therefore pay
full attention when handling it.
- 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/220Vpower 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.
- To insure adequate working space for the copying operation, keep a minimum clearance of 10cm (3.9
on the left, 10 cm (3.9) on the right and 18 cm (7.1) on the rear.
- The equipment shall be installed near the socket outlet and shall be accessible.
- Be sure to x and plug in the power cable securely after the installation so that no one trips over it.
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Precautions
Service Manual1-5
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 ones foot from a carpeted oor, can generate static
electricity sufcient to damage an ESD.
1.4 Super Capacitor or Lithium Battery Precautions
1. Exercise caution when replacing a super capacitor or Lithium battery. There could be a danger of explosion
and subsequent operator injury and/or equipment damage if incorrectly installed.
2. Be sure to replace the battery with the same or equivalent type recommended by the manufacturer.
3. Super capacitor or Lithium batteries contain toxic substances and should not be opened, crushed, or
burned for disposal.
4. Dispose of used batteries according to the manufacture? instructions.
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Product spec and feature
Service Manual2-1
Samsung Electronics
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Service Manual
Samsung Electronics
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Service Manual
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2.1.2.9 Options
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Service Manual
Samsung Electronics
2.1.3 Model Comparison
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SCX-4824FN
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Service Manual
Samsung Electronics
2.2 Summary of Product
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5 Front cover 13 Toner cartridge
6 Manual tray 14Manual tray paper widthguides
7 Tray 1 15 Scanner lid
8 Document input tray 16 Scanner glass
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Product spec and feature
Service Manual2-11
Samsung Electronics
2.2.1.2 Rear View
1
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Product spec and feature
Service Manual2-12
Samsung Electronics
2.2.2 System Layout
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Service Manual
Samsung Electronics
2.2.2.1 Feeding
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Service Manual
Samsung Electronics
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Service Manual
Samsung Electronics
2.2.2.6 Print Cartridge
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Service Manual
Samsung Electronics
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Service Manual
Samsung Electronics
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Service Manual
Samsung Electronics
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Service Manual
Samsung Electronics
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Service Manual2-21
Samsung Electronics
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6KXWGRZQ(2.5~5.0A)
or Fuse Protection
8QGHU/36VSHF
6KXWGRZQ$a5$RU
9ROWDJH'URSWULS
SUNGHO
CON3
(Main PBA CON.)
24V : 3 5 7 9
5V : 11 13 15
CON3
(Main PBA CON.)
24V : 3 5 7 9
5V : 11 13 15CON2
(Heat Lamp
CON.)
CON2
(Heat Lamp
CON.)
CON1
(AC POWERCON.)
CON1
(AC POWERCON.)
F1
V2C: 250V 8A
V1 : 250V 10A
F1
V2C: 250V 8A
V1 : 250V 10A
F02
250V 3.15A
F02
250V 3.15A
F71
SH: 250V 2A
F71
SH: 250V 2AF72
250V 2.5A
F72
250V 2.5A
PC22
TLP3061F
PC22
TLP3061F
SUNGHO
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Product spec and feature
Service Manual2-22
Samsung Electronics
2.2.3.2(c) FUSER AC POWER CONTROL
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
RI7ULDFWKH7ULDFEHFRPHVRIIDQGWKHQWKHKHDWODPSLVWXUQHGRII
7ULDF4IHDWXUH$/9PRGHO$+9PRGHO96:,7&+,1*3KRWRWULDF&RXSOHU3&7XUQ2Q,I&XUUHQWP$aP$'HVLJQP$+LJK5HSHWLYH3HDN2II6WDWH9ROWDJH0LQ9
CON4
(Main PBACON.)
24V : 3 5 7 9
5V : 11 13 15
CON4
(Main PBA
CON.)
24V : 3 5 7 9
5V : 11 13 15CON2
(Heat
Lamp
CON.)
CON2
(Heat
Lamp
CON.)
CON1
(AC POWER
CON.)
CON1
(AC POWER
CON.)
F1
V2C: 250V 8A
V1 : 250V 10A
F1
V2C: 250V 8A
V1 : 250V 10A
F02
250V 3.15A
F02
250V 3.15A
F71
SH: 250V
4A
F71SH: 250V
4A
F72
250V 4A
F72
250V 4A
PC51
TLP3061F
PC51
TLP3061F
SEM
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Product spec and feature
Service Manual
Samsung Electronics
2.2.3.3 Fax
,PSOHPHQWHGE\EDVHGRQ&RQH[DQW'$$'DWD$FFHVV$UUDQJHPHQW6ROXWLRQDQGLVURXJKO\FRPSRVHGRI
WZRNLQGV&KLS6ROXWLRQ
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&;/6'/,8/LQH,QWHUIDFH8QLW&KLSZKLFKLVFRQWUROOHGE\66'DQGVDWLVHVHDFK36715HTXLUHPHQWVE\PRGXODWLQJLQWHUQDO&RQJXUDWLRQZLWKFRQQHFWLQJ7HO/LQH
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Product spec and feature
Service Manual
Samsung Electronics
2.2.3.4 Scan
3LFWRULDOVLJQDOLQSXWSDUWRXWSXWVLJQDORI&,6SDVVHVWKURXJK03&DSFKDQJHWR$'&DW+79DQG
GHQHGVLJQDOEHWZHHQ+79DQG&+2586SURFHVVHVWKH,PDJHVLJQDO:KHQ$)(DFFHSWHDFKSL[HO6+$6DPSOHDQG+ROG$PSOLHUWHFKQLTXHZKLFKVDPSOHVDUPOHYHORQFHLVXVHGRQHDFKSL[HOE\&,6VLJQDO
3LFWRULDOLPDJHSURFHVVLQJSDUWUHDG&,63L[HOGDWDLQWHUPVRIGSL/LQHDQGSURFHVV(UURU'LIIXVLRQ$OJRULWKPWH[W0L[HGPRGHGLWKHUSKRWRPRGHDQGWKHQVWRUH'DWDDW6FDQ%XIIHURQ3&6FDQPRGHZLWKRXWDOJRULWKP2QHYHU\PRGH6KDGLQJ&RUUHFWLRQDQG*DPPD&RUUHFWLRQDUHH[HFXWHGDKHDGWKHQSURFHVVLQJLVH[HFXWHGODWHU
6FDQ,PDJH&RQWURO6SHFLFDWLRQ6FDQ/LQH7LPHPVHFFK6FDQ5HVROXWLRQ0D['3,6FDQ:LGWKPP main function
,QWHUQDOELW$'&:KLWH6KDGLQJ&RUUHFWLRQ*DPPD&RUUHFWLRQ&,6,QWHUIDFH
&,62SHUDWLQJ3DUW&,6,PDJHVHQVRUXVH9&,60D[LPXP2SHUDWLQJ)UHTXHQF\0+]&,6/LQHWLPHPVHFFK:KLWH'DWDRXWSXW9ROWDJH990RQR&RS\PVOLQH
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Product spec and feature
Service Manual
Samsung Electronics
2.2.3.5 Engine F/W
2.2.3.5(a) Control Algorithm
)HHGLQJ
,IIHHGLQJIURPDFDVVHWWHWKHGULYHRIWKHSLFNXSUROOHULVFRQWUROOHGE\FRQWUROOLQJWKHVROHQRLG7KHRQRIIRIWKHVROHQRLGLVFRQWUROOHGE\FRQWUROOLQJWKHJHQHUDORXWSXWSRUWRUWKHH[WHUQDORXWSXWSRUW,IIHHGLQJIURPDPDQXDOIHHGHUGHFLGHWRLQVHUWWKHSDSHUDFFRUGLQJWRWKHRSHUDWLRQRIWKH5HJLVHQVRUDQGE\GULYLQJWKHPDLQPRWRULQVHUWWKHSDSHULQIURQWRIWKHIHHGVHQVRU:KLOHSDSHUPRYHVRFFXUUHQFHRI-DPLVMXGJHGDVEHORZ
Item Description
-$0 $IWHUSLFNLQJXSSDSHUFDQQRWEHHQWHUHGGXHWRSDSHULVQRWIHG
$IWHUSLFNLQJXSSDSHUHQWHUHGEXWLWFDQQRWUHDFKWRWKHIHHGVHQVRULQFHUWDLQWLPHGXHWR
VOLSHWF$IWHUSLFNLQJXSLIWKHIHHGVHQVRULVQRWRQUHSLFNXS$IWHUUHSLFNLQJXSLIWKHIHHG
VHQVRULVQRWRQDIWHUFHUWDLQWLPHLWLV-$0
,WLVDVWDWXVWKDWWKHOHDGLQJHGJHRIWKHSDSHUGRHVQWSDVVWKHIHHGVHQVRU
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,WLVDVWDWXVWKDWWKHOHDGLQJHGJHRIWKHSDSHUDOUHDG\SDVVHVWKHIHHGVHQVRU
-$0 $IWHUWKHOHDGLQJHGJHRIWKHSDSHUSDVVHVWKHIHHGVHQVRUWKHWUDLOLQJHGJHRIWKHSDSHU
FDQQRWSDVVWKHIHHGVHQVRUDIWHUDFHUWDLQWLPH7KHIHHGVHQVRUFDQQRWEH2))
$IWHUWKHOHDGLQJHGJHRIWKHSDSHUSDVVHVWKHIHHGVHQVRUWKHSDSHUFDQQRWUHDFKWKHH[LW
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2.2.3.5(b) Driver
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2.2.3.5(c) Transfer
7KHFKDUJLQJYROWDJHGHYHORSLQJYROWDJHDQGWKHWUDQVIHUYROWDJHDUHFRQWUROOHGE\3:03XOVH:LGWK0RGXODWLRQ7KHHDFKRXWSXWYROWDJHLVFKDQJHDEOHGXHWRWKH3:0GXW\7KHWUDQVIHUYROWDJHDGPLWWHGZKHQWKHSDSHUSDVVHVWKHWUDQVIHUUROOHULVGHFLGHGE\HQYLURQPHQWUHFRJQLWLRQ7KHUHVLVWDQFHYDOXHRIWKHWUDQVIHUUROOHULVFKDQJHGGXHWRWKHVXUURXQGLQJHQYLURQPHQWRUWKHHQYLURQPHQWRIWKHVHWDQGWKHYROWDJHYDOXHZKLFKFKDQJHVGXHWRWKHHQYLURQPHQWVLVFKDQJHGWKURXJK$'FRQYHUWHU7KHYROWDJHYDOXHIRU
LPSUHVVLQJWRWKHWUDQVIHUUROOHULVGHFLGHGE\WKHFKDQJHGYDOXH(DFKYROWDJHYDOXHLVFRQWUROOHGDFFRUGLQJWR7LPLQJ&KDUW
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Product spec and feature
Service Manual
Samsung Electronics
2.2.3.5(d) Fusing
7KHWHPSHUDWXUHFKDQJHRIWKHKHDWUROOHUVVXUIDFHLVFKDQJHGWRWKHUHVLVWDQFHYDOXHWKURXJKWKHWKHUPLVWRU%\FRQYHUWLQJWKHYROWDJHYDOXHZKLFKLPSUHVVHGWRWKHUHVLVWDQFHWRWKHGLJLWDOYDOXHWKURXJKWKH$'FRQYHUWHUWKHWHPSHUDWXUHLVGHFLGHG7KH$&SRZHULVFRQWUROOHUE\FRPSDULQJWKHWDUJHWWHPSHUDWXUHWRWKHYDOXHIURPWKHWKHUPLVWRU,IWKHYDOXHIURPWKHWKHUPLVWRULVRXWRIFRQWUROOLQJUDQJHZKLOHFRQWUROOLQJWKHIXVLQJWKHHUURUVWDWHGLQWKHEHORZWDEOHRFFXUV
/DPS0HWKRG
Error Description
23(1+($7(5525 :KHQZDUPLQJXSLWKDVEHHQORZHUWKDQRYHUVHFRQGV
/2:+($7(5525 6WDQGE\KDVEHHQORZHUWKDQWKH6WDQGE\5HIHUHQFH7HPSHUDWXUHRYHU
VHFRQGV
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VHFRQGV
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7HPSHUDWXUHRYHUVHFRQGV
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VHFRQGV
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2.2.3.5(e) LSU
7KH/68LVFRQVLVWHGRIWKH/'/DVHU'LRGHDQGWKHSRO\JRQPRWRUFRQWURO:KHQWKHSULQWLQJVLJQDORFFXUVLWWXUQVRQWKH/'DQGGULYHVWKHSRO\JRQPRWRU:KHQWKHGHWHFWRUGHWHFWVWKHEHDP+V\QFRFFXUV:KHQWKHSRO\JRQPRWRUVSHHGEHFRPHVVWUDG\/UHDG\RFFXUV,IWZRFRQGLWLRQVDUHVDWLVHGWKHVWDWXVDUHQRWVDWLVHGWKHHUURUVKRZQLQEHORZRFFXUV
Error Description
Polygon Motor Error :KHQWKHSRO\JRQPRWRUVSHHGGRHVQWEHFRPHVWHDG\
+V\QF(UURU 7KHSRO\JRQPRWRUVSHHGLVVWHDG\EXWWKH+V\QFLVQRWJHQHUDWHG
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Product spec and feature
Service Manual
Samsung Electronics
2.2.4 S/W Descriptions
2.2.4.1 Overview
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2.2.4.2 Architecture
Host Software is made up of
*UDSKLF8VHU,QWHUIDFHWKDWRIIHUVWKHYDULRXVHGLWLQJIXQFWLRQVWRXVHULQ+RVW'ULYHUWKDWWUDQVODWHVWKHUHFHLYHGGRFXPHQWWRD3ULQWLQJ&RPPDQGODQJXDJHZKLFKSULQWHUFDQ
XQGHUVWDQGDQGWUDQVIHUVGDWDWRVSRROHU6WDQGDORQH$SSOLFDWLRQWKDWRIIHUVWKHYDULRXVSULQWLQJDSSOLFDWLRQ3683ULQWHU6HWWLQJV8WLOLW\3ULQWHU
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'LDJQRVLV&RQWUROLQ:HEHQYLURQPHQW
Firmware is made up of$SSOLFDWLRQ(PXODWLRQWKDWLVDLQWHUSUHWHUWUDQVODWHGDWDUHFHLYHGIURP+RVWWRDSULQWLQJODQJXDJH3&/
36*',RQO\6&;)1HWFWREHDEOHWRPDNHWKHXVHUWRWDNHVDPHRXWSXWDVRULJLQDOO\RQHZKDWFRPSRVHGLQ+RVW
.HUQHOWKDWFRQWURODQGPDQDJHPHQWWKHZKROHSURFHGXUHLQFOXGHRI&RQWURORZDQG3ULQWLQJ-REEHIRUHWUDQVIHUWR(QJLQHV\VWHP
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Product spec and feature
Service Manual
Samsung Electronics
2.2.4.3 Data and Control Flow
The above Block Diagram is explained that:
Host Side is made up of
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Product spec and feature
Service Manual
Samsung Electronics
Firmware Side is made up of
1HWZRUN,QWHUIDFH&DUGLVWKDWUHOD\WKHFRPPXQLFDWLRQEHWZHHQ+RVWDQGNHUQHOXVLQJYDULRXVQHWZRUNSURWRFRO
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In Printing, the two procedures are
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.HUQHOUHFHLYHVWKLVGDWDIURP+RVWDQGWKHQVHOHFWHPXODWLRQWWRGDWDDQGVWDUWVHOHFWHGRQH$IWHUHPXODWLRQMREHQG.HUQHOVHQGVWKHRXWSXWELWPDSGDWDWR(QJLQHXVLQJ3ULQWHU9LGHR&RQWUROOHUE\FORFNW\SHIRU/68
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The additional printing function are realized in
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Disassembly and Reassembly
Service Manual3-1
Samsung Electronics
When you disassemble and reassemble
components, you must use extreme caution. The
close proximity of cables to moving parts makes
proper routing a must.
If components are removed, any cables disturbed
by the procedure must be restored as close as
possible to their original positions. Before removing
any component from the machine, note the cable
routing that will be affected.
Whenever servicing the machine, you
must perform as follows:
1. Check to verify that documents are not stored in
memory.
2. Be sure to remove the toner cartridge before you
disassemble parts.
3. Unplug the power cord.
4. Use a at and clean surface.
5. Replace only with authorized components.
6. Do not force plastic-material components.
7. Make sure all components are in their proper
position.
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.
3. Disassembly and Reassembly
3.1 General Precautions on Disassembly
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Disassembly and Reassembly
Service Manual3-2
Samsung Electronics
3.1.1 Screws used in the printer
SEC_CODE Location Description Qty
6002-000440Duplex Unit
SCREW-TAPPING;PWH,+,-,2,M3,L8,ZPC(BLK),SWRCH18A,- 1
6003-000196 SCREW-TAPTITE;PWH,+,B,M3,L10,NI PLT,SWRCH18A 3
6003-000282 CARTRIDGE-TONER SCREW-TAPTITE;BH,+,-,B,M3,L8,ZPC(BLK),SWRCH18A,- 10
6003-000196 ELA HOU-SCAN_HIGH SCREW-TAPTITE;PWH,+,B,M3,L10,NI PLT,SWRCH18A 10
6003-000269 ELA HOU-ADF MOTOR SCREW-TAPTITE;BH,+,-,S,M3,L6,ZPC(WHT),SWRCH18A,- 3
6003-000196 ELA HOU-ADF LOWER SCREW-TAPTITE;PWH,+,B,M3,L10,NI PLT,SWRCH18A 6
6003-000196 MEA-COVER PLATEN SCREW-TAPTITE;PWH,+,B,M3,L10,NI PLT,SWRCH18A 6
6003-000196 ELA HOU-OPE SCREW-TAPTITE;PWH,+,B,M3,L10,NI PLT,SWRCH18A 4
6003-000196 ELA HOU-PLATEN_HIGH SCREW-TAPTITE;PWH,+,B,M3,L10,NI PLT,SWRCH18A 4
6003-000196 ELA HOU-SCAN LOWER_H SCREW-TAPTITE;PWH,+,B,M3,L10,NI PLT,SWRCH18A 9
6003-000196 ELA UNIT-STANDARD SCAN SCREW-TAPTITE;PWH,+,B,M3,L10,NI PLT,SWRCH18A 3
6003-000269 ELA UNIT-SCAN DRIVE SCREW-TAPTITE;BH,+,-,S,M3,L6,ZPC(WHT),SWRCH18A,- 2
6002-000440
ELA HOU-FRAME
SCREW-TAPPING;PWH,+,-,2,M3,L8,ZPC(BLK),SWRCH18A,- 13
6003-000196 SCREW-TAPTITE;PWH,+,B,M3,L10,NI PLT,SWRCH18A 64
6003-000301 SCREW-TAPTITE;BH,+,-,S,M4,L6,ZPC(WHT),SWRCH18A,- 1
6006-001078SCREW-TAPTITE;PH,+,WSP,B,M3,L10,ZPC(WHT),
SWRCH18A,-1
6003-000269 ELA UNIT-DRIVE SCREW-TAPTITE;BH,+,-,S,M3,L6,ZPC(WHT),SWRCH18A,- 11
6003-000196ELA UNIT-FUSER
SCREW-TAPTITE;PWH,+,B,M3,L10,NI PLT,SWRCH18A 3
6003-000282 SCREW-TAPTITE;BH,+,-,B,M3,L8,ZPC(BLK),SWRCH18A,- 4
6003-000282 MEA-COVER FRONT SCREW-TAPTITE;BH,+,-,B,M3,L8,ZPC(BLK),SWRCH18A,- 1
6003-000196ELA HOU-MAIN LINE
SCREW-TAPTITE;PWH,+,B,M3,L10,NI PLT,SWRCH18A 14
6003-001256 SCREW-TAPTITE;BH,+,B,M4,L10,NI PLT,SWRCH18A 4
6003-000282 ELA UNIT-LSU SCREW-TAPTITE;BH,+,-,B,M3,L8,ZPC(BLK),SWRCH18A,- 10
6003-000282 ELA UNIT-LSU LD SCREW-TAPTITE;BH,+,-,B,M3,L8,ZPC(BLK),SWRCH18A,- 2
6003-000196
MEA UNIT-CASSETTE
SCREW-TAPTITE;PWH,+,B,M3,L10,NI PLT,SWRCH18A 2
6003-000261 SCREW-TAPTITE;BH,+,-,B,M3,L6,ZPC(WHT),SWRCH18A,- 1
6003-000264 SCREW-TAPTITE;PWH,+,-,B,M3,L6,ZPC(WHT),SWRCH18A,- 1
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Disassembly and Reassembly
Service Manual3-3
Samsung Electronics
3.2 General Disassembly
3.2.1 Front Cover
3.2.2 Rear Cover
1. Open the front cover after take out the cassette. 2. Separate the front cover from the lock the frame
by pulling the front cover to the direction of
arrow.
1. Remove the Duplex unit. 2. Open the rear cover. And separate the rear
cover from the locking by pulling the rear cover
to the direction of arrow.
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Disassembly and Reassembly
Service Manual3-4
Samsung Electronics
3.2.3 Right/Left Cover
1. Remove the one screw. And pull and release the
right cover somewhat.
2. Release the right cover after unplug the 1
connector from Main PBA.
3. Pull the left cover to the direction of arrow and
release it.
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Disassembly and Reassembly
Service Manual3-5
Samsung Electronics
3.2.4 Scan and ADF Assy
3.2.4.1 ADF Unit
1. Remove the 2 screws after remove the right
cover.
2. Remove the one screw and connected harness
from Main board. And lift the Scan Assy to thedirection of arrow.
1. Unplug the harness after remove the cap
harness as shown below.
2. Lift up and release the ADF Assy.
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Disassembly and Reassembly
Service Manual3-6
Samsung Electronics
3.2.4.2 Stacker TX
1. Remove the 2 screws from the bottom of ADF
Assy.
2. Lift up and release the Stacker TX
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Disassembly and Reassembly
Service Manual3-7
Samsung Electronics
3.2.4.3 ADF Engine unit
1. Open the ADF cover and remove it. And remove the pick-up roller by following below sequence.
2. Remove the ADF engine unit after remove the 2
screws from the bottom of SET.
3. Remove the 2 screws of the ADF cover upper.
And then lift it up.
13
2
Locking
13
2
13
2
Locking
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Disassembly and Reassembly
Service Manual3-8
Samsung Electronics
3.2.4.4 OPE Unit
3.2.4.5 CIS Unit
1. Pull up the OPE unit. 2. Remove the 2 connector and release the OPE
unit.
1. Remove the 4 screws of the Scan upper. 2. Remove the 4 screw and 1 CIS cable. And
release the CIS unit.
HookHook
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Disassembly and Reassembly
Service Manual3-9
Samsung Electronics
3.2.5 Middle Cover
3.2.6 Fuser
1. Remove the 2 screws as shown below. 2. Remove the 2 screws from the front and rear of
the SET. Unplug the harness connected to themain board. And lift the middle cover up.
1. Remove the rear cover. Remove the Guide rear
by pushing both side and removing the hinge.
2. Remove the 4 screw. And remove the fuser after
remove the connector.
CAUTION
The fuser is very hot. So turn the printer off
and wait until the printer to cool before
replacing it.
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Disassembly and Reassembly
Service Manual3-10
Samsung Electronics
3.2.7 LSU
3.2.8 Main Drive Assy
- Before disassembly, remove the cassette, Cover front, Cover left, Cover rear.
1. Release the LSU after remove the 4 screws and one connector.
1. Remove the rear cover. Remove the Guide rear
by pushing both side and removing the hinge.
2. Remove the 4 screw. And remove the fuser after
remove the connector.
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Disassembly and Reassembly
Service Manual3-11
Samsung Electronics
3.2.9 HVPS/SMPS/Main board
- Before disassembly, remove the cover front, cover rear, cover rigth.
1. Release the HVPS board after remove the 6 screws and 1 connector.
2. Release the SMPS board after remove the 4
screws and 2 connector.
3. Release the Main board after remove the 4
screws and all harness.
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Disassembly and Reassembly
Service Manual3-12
Samsung Electronics
3.2.10 Transfer roller
1. Push HOLDER-TRANSFER, which holds the transfer roller and remove the roller from set.
Caution - Be carefull not to touch the sponge of Transfer Roller.
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Disassembly and Reassembly
Service Manual3-13
Samsung Electronics
3.2.11 Holder Pad unit
1. Remove the CASSETTE from SET. 2. Disassemble HOLER-PAD after putting out three
HOOKs
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Alignment & Troubleshooting
Service Manual4-1
Samsung Electronics
4.1 Alignment and Adjustments
4.1.1 Control Panel overview
4. Alignment & TroubleshootingThis chapter describes the main functions for service, such as the product maintenance method, the testoutput related to maintenance and repair, DCU using method, Jam removing method, and so on. It includesthe contents of manual.
1 ID Copy You can copy both sides of the ID Card like a drivers license to a single side of paper.
2 Direct USB
Allows you to directly print files stored on a USB Memory device when it is inserted into the
USB memory port on the front of your machine. (SCX-4x28 Series only)
Reduce/Enlarge Makes a copy smaller or larger than the original. (SCX-4x24 Series only)
3 Display Shows the current status and prompts during an operation.
4 Status Shows the status of your machine.
5 Fax Activates Fax mode.
6 Copy Activates Copy mode.
7 Scan/Email Activates Scan mode.
8 Menu Enters Menu mode and scrolls through the available menus.
9 Left/right arrow Scroll through the options available in the selected menu, and increase or decrease values.
10 OK Confirms the selection on the screen.
11 Back Sends you back to the upper menu level.
12 Number keypad Dials a number or enters alphanumeric characters.
13 Address BookAllows you to store frequently used fax numbers in memory or search for stored fax numbersor email addresses.
14 Redial/Pause In ready mode, redials the last number, or in Edit mode, inserts a pause into a fax number.
15 On Hook Dial Engages the telephone line.
16 Stop/Clear
Stops an operation at any time. In ready mode, clears/cancels the copy options, such as the
darkness, the document type setting, the copy size, and the number of copies.
17 Start Starts a job.
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Alignment & Troubleshooting
Service Manual4-2
Samsung Electronics
4.1.2 Understanding The Status LED
The color of the Status LED indicates the machines current status.
Status Description
Off 7KHPDFKLQHLVSRZHUHGRIIOLQH
7KHPDFKLQHLVLQSRZHUVDYHPRGH:KHQGDWDLVUHFHLYHGRUDQ\
button is pressed, it switches to on-line automatically.
Green On 7KHPDFKLQHLVSRZHUHGRQDQGFDQEHXVHG
Blinking :KHQWKHJUHHQ/('VORZO\EOLQNVWKHPDFKLQHLVUHFHLYLQJGDWDIURP
the computer.
:KHQWKHJUHHQ/('UDSLGO\EOLQNVWKHPDFKLQHLVSULQWLQJGDWD
Red On $SUREOHPKDVRFFXUUHGVXFKDVDSDSHUMDPFRYHURSHQRUQRSDSHULQ
the tray, so that the machine cannot continue the job.7KHWRQHUFDUWULGJHLVHPSW\RUQHHGVWREHFKDQJHG
Blinking $PLQRUHUURUKDVRFFXUUHGDQGWKHPDFKLQHLVZDLWLQJIRUWKHHUURUWREH
cleared.
7KHWRQHUFDUWULGJHLVORZ2UGHUDQHZWRQHUFDUWULGJH
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Alignment & Troubleshooting
Service Manual4-3
Samsung Electronics
4.1.3 Paper path
Scanner Part
Engine Part
LSU
DEVE
CASSETTE
DUPLEX
FUSER
$')52//(5 PICK-UP52//(5
COVER OPENCOVER OPEN
)(('52//(5
SCAN UPPERSCAN UPPER
$')*/$66:+,7(%$5
EXIT 52//(5ADF-UPPER
$')/2:(5
ADF-UPPER
$')/2:(5
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Alignment & Troubleshooting
Service Manual4-4
Samsung Electronics
4.1.3.1 Clearing Document Jams
:KHQDQRULJLQDOMDPVZKLOHSDVVLQJWKURXJKWKH$')'RFXPHQW-DPDSSHDUVRQWKHGLVSOD\
Input Misfeed
1. Remove any remaining pages from the ADF.
2. Open the ADF cover.
3. Rotate the bushing on the right end of the ADFroller toward the ADF (1) and remove the rollerfrom the slot (2). Pull the document gently to theleft and out of the ADF.
4. Align the left end of the ADF roller with the slotand push the right end of the ADF roller into theright slot (1). Rotate the bushing on the right endof the roller toward the document input tray (2).
5. Close the ADF cover. Then load the removedpage(s), if any, back into the ADF.
1 ADF cover
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Alignment & Troubleshooting
Service Manual4-5
Samsung Electronics
Exit misfeed
1. Remove any remaining pages from the ADF.
2. Seize the misfeed paper, and remove the paperfrom the document output tray by carefullypulling it to the right using both hands.
/RDGWKHUHPRYHGSDJHVEDFNLQWRWKH$')
Roller misfeed
1. Open the scanner lid.
2. Seize the misfeed paper, and remove the paperfrom the feed area by carefully pulling it to theright using both hands.
3. Close the scanner lid. Then load the removedpages back into the ADF.
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Alignment & Troubleshooting
Service Manual4-6
Samsung Electronics
4.1.3.2 Clearing paper jams
:KHQDSDSHUMDPRFFXUVWKHZDUQLQJPHVVDJHDSSHDUVRQWKHGLVSOD\VFUHHQ5HIHUWRWKHWDEOHEHORZWR
locate and clear the paper jam.
Message Location of jam
Paper Jam 0
Open/Close DoorIn the paper feed area or inside the machine
Paper Jam 1
Open/Close DoorInside the machine
Paper Jam 2
Check InsideInside the machine or in the fuser area
Duplex Jam 0
Check InsideInside the machine
Duplex Jam 1
Open/Close DoorIn the paper feed area or inside the machine
In the paper feed area
If paper is jammed in the paper feed area, followthe next steps to release the jammed paper.
1. Pull the tray open.
2. Remove the jammed paper by gently pulling itstraight out as shown below.
If the paper does not move when you pull, or ifyou do not see the paper in this area, check Inthe toner cartridge area.
3. Insert the tray back into the machine. Printingautomatically resumes.
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Alignment & Troubleshooting
Service Manual4-7
Samsung Electronics
In the manual tray
:KHQ\RXSULQWXVLQJWKHPDQXDOWUD\DQGWKH
machine detects that there is either no paper orthat the paper has been improperly loaded, followthe next steps to release the jammed paper.
1. Check if the paper is stuck in the feeding area,and if so, pull it out gently and slowly.
/RDGDSDSHULQWRWKHPDQXDOWUD\
3. Open the front cover and close it. The machinewill resume printing.
In the toner cartridge area
If paper is jammed in the toner cartridge area,follow the next steps to release the jammed paper.
1. Open the front cover and pull the toner cartridgeout
2. Remove the jammed paper by gently pulling it
straight out as shown below.
3. Replace the toner cartridge and close the frontcover. Printing automatically resumes.
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Alignment & Troubleshooting
Service Manual4-8
Samsung Electronics
In the paper exit area
If paper is jammed in the paper exit area, follow thenext steps to release the jammed paper.
1. If a long portion of the paper is visible, pull itstraight out. Open and close the front coverUPO\7KHPDFKLQHZLOOUHVXPHSULQWLQJ
,I\RXFDQQRWQGWKHMDPPHGSDSHURULIWKHUHLV
any resistance removing the paper, stop pullingand go to step 2.
2. Open the rear cover.
3. Pull the guide rear on each side down andcarefully take the jammed paper out of themachine. Return the guide rear to its originalposition.
4. Close the rear cover. Printing automaticallyresumes.
In the duplex unit area
If the duplex unit is not inserted correctly, paperjam may occur. Make sure that the duplex unit isinserted correctly.
1. Pull the duplex unit out of the machine.
2. Remove the jammed paper from the duplex unit.
If the paper does not come out with the duplexunit, remove the paper from the bottom of themachine.
,I\RXFDQQRWQGWKHMDPPHGSDSHURULIWKHUHLVany resistance removing the paper, stop pullingand go to step 3.
1 Guide rear
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Alignment & Troubleshooting
Service Manual4-9
Samsung Electronics
3. Open the rear cover.
4. Pull the guide rear on each side down andremove the paper. Return the guide rear to itsoriginal position.
5. Close the rear cover. Printing automatically
resumes.
In the optional tray
If paper is jammed in the optional Tray, follow thenext steps to release the jammed paper.
1. Pull the optional tray open.
2. If you see the jammed paper, remove the paperfrom the machine by gently pulling it straight outas shown below.
,I\RXFDQQRWQGWKHMDPPHGSDSHURULIWKHUHLVany resistance removing the paper, stop pullingand go to step 3.
3. Pull the tray half.
4. Remove the jammed paper by gently pulling thepaper straight up and out.
5. Insert the trays back into the machine. Printingautomatically resumes.
1 Guide rear
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Alignment & Troubleshooting
Service Manual4-10
Samsung Electronics
4.1.4 Menu Map
The control panel provides access to various menus to set up the machine or use the machines functions.
These menus can be accessed by pressing Menu. Refer to the following diagram. Menus available in Fax,Copy, or Scan mode vary.
.
Fa
xFeature
Darkn
ess
Resolution
MultiSend
Delay
Send
PrioritySend
Forwa
rd
Secur
eReceive
AddP
age
Cance
lJob
FaxSetup
Sending
RedialTim
es
RedialTerm
PrefixDial
ECMMode
SendReport
ImageTCR
DialMode
Receiving
ReceiveMode
RingtoAnswer
FaxSetup
(Continued)
StampRcvName
RcvStartCode
AutoReduction
DiscardSize
JunkFaxSetup
DRPD
Mode
DuplexPrint
Ch
angeDefault
Resolution
Darkness
Au
toReport
CopyFeature
Reduce/Enlarge
Darkness
OriginalType
/D\out
Normal
2-Up
4-Up
IDCopy
PosterCopy
CloneCopy
AdjustBkgd.
CopySetup
Duplex
ChangeDefault
Copies
CopyCollation
Reduce/Enlarge
Darkness
OriginalType
ScanFeature
USBFeature
ScanSize
OriginalType
Resolution
ScanColor
ScanFormat
E-mailFeature
ScanSize
OriginalType
Resolution
ScanColor
ScanFormat
ScanSetup
ChangeDefault
USBDefault
E-mailDefault
SystemSetup
(Continued)
Report
AllReport
Configuration
SuppliesInfo
AddressBook
SendReport
SentReport
FaxRcvReport
ScheduleJobs
JunkFaxReport
NetworkInfo.
UserAuth
/LVt
Maintenance
&/REmptyMsg
IgnoreToner
SupplieV/ife
SerialNumber
SystemSetup
(Continued)
ClearSetting
AllSettings
FaxSetup
CopySetup
ScanSetup
SystemSetup
Network
AddressBook
SentReport
FaxRcvReport
Network
TCP/IP
EthernetSpeed
ClearSetting
NetworkInfo
SystemSetup
MachineSetup
MachineID
MachineFaxNo.
Date&Time
ClockMode
/Dnguage
DefaultMode
PowerSave
Timeout
JobTimeout
AltitudeAdj.
ImportSetting
ExportSetting
PaperSetup
PaperSize
PaperType
PaperSource
Sound/Volume
KeySound
AlarmSound
Speaker
Ringer
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Alignment & Troubleshooting
Service Manual4-11
Samsung Electronics
4.1.4.1 Accessing to menus
The next steps are the example to print the menu map of this machine, and they are the general way to
VHOHFWPHQXDQGFRQJXUH\RXUPDFKLQH
1. Make sure your machine is properly connected all the necessary cables, and turn on the machine.2. Press the Menu button until you see the menu (ex. Information) you want on the bottom line of the display.3. Press the OK button to access the menu.3UHVVWKH/HIWULJKWDUURZEXWWRQVXQWLOWKHPHQXLWHPH[0HQX0DS\RXZDQWGLVSOD\VRQWKHERWWRP
line.3UHVVWKH2.EXWWRQWRFRQUPWKHVHOHFWHGLWHP
3UHVVWKH/HIWULJKWDUURZEXWWRQVXQWLOWKHPHQXLWHPH[3ULQW"\RXZDQWGLVSOD\VRQWKHERWWRPOLQH
7. Press the OK button to process your selection, save your input or selection.An asterisk (*) appears next to the selection on the display, indicating that it is now the default.
8. To exit the menu, press the Back button repeatedly, or the Stop button.
Note - If you want to set the basic menu items, please consult the user guide.
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Alignment & Troubleshooting
Service Manual4-12
Samsung Electronics
4.1.5 Tech Mode
4.1.5.1 How to Enter Tech Mode
In service (tech) mode, the technician can check the machine and perform various test to isolate the causeof a malfunction.
:KLOHLQ7HFKPRGHWKHPDFKLQHVWLOOSHUIRUPVDOOQRUPDORSHUDWLRQV
To enter the Tech mode
To enter the Tech mode, press LQVHTXHQFHDQGWKH/&'EULH\
GLVSOD\V7(&+WKHPDFKLQHKDVHQWHUHGVHUYLFHWHFKPRGH
4.1.5.2 Setting-up System in Tech Mode
In service (tech) mode, the technician can check the machine and perform various test to isolate the causeof a malfunction.
SCX-4824FN/4828FN
6HQG/HYHO'70)/HYHOPause TimeDial ModeModem SpeedError RateRDSClear All MemClear CountsFlash UpgradeSilence Time
Switch TestModem TestDram TestRom TestPattern TestShading Test
All ReportProtocolConfiguration.H\+LVWRU\Error InfoUsage PageComponent Check
Service Support
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Alignment & Troubleshooting
Service Manual4-13
Samsung Electronics
4.1.5.3 Data Setup
SEND LEVEL
You can set the level of the transmission signal. Typically, the Tx level should be under -12 dBm.&DXWLRQ7KH6HQG)D[/HYHOLVVHWDWWKHEHVWFRQGLWLRQLQWKHVKLSPHQWIURPIDFWRU\1HYHUFKDQJHVHWWLQJV
arbitrarily.
DIAL MODEThis function can choose dial method.*Default : Dial(Dial/Pulse)
MODEM SPEEDYou can set the maximum modem speed.Communication is done with modem speed automatically set at lower speed when communicating with aslower speed modem since communication is done on the standard of the side where modem speed is low
for transmission/reception. It is best set 33.6Kbps as default setting.
ERROR RATE:KHQWKHHUURUUDWHLVDERXWH[FHHGWKHVHWYDOXHWKH%DXGUDWHDXWRPDWLFDOO\DGMXVWVWRESV
This ensures that the error rate remains below the set value.You can select the rate between 5% and 10%.
CLEAR ALL MEMORYThe function resets the system to factory default settings.This function is used to reset the system to the initial value when the product is functioning abnormally. All thevalues are returned to the default values, and all the information, which was set by the user, will be erased.
< Method >6HOHFWWKH>0(025
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Alignment & Troubleshooting
Service Manual4-14
Samsung Electronics
Flash Upgrade7KH)LUPZDUH8SJUDGHIXQFWLRQDQGKDVWZRPHWKRGV/RFDODQG5HPRWH
1) Local Machine Upgrade5&35HPRWH&RQWURO3DQHOPRGH
This method is for USB Port Connect to PC and activate RCP(Remote Control Panel) to upgrade theFirmware.
< Method >
+RZWR8SGDWH)LUPZDUHXVLQJ5&3
1. Connect PC and Printer with USB Cable.2. Execute RCP and select Firmware Update.6HDUFK)LUPZDUHOHWRXSGDWHZLWK%URZVH,FRQ
&OLFN8SGDWHLFRQUPZDUHOHLVWUDQVPLWWHGWR3ULQWHUDXWRPDWLFDOO\DQGSULQWHULVLQLWLDOL]HGZKHQLW
QLVKHG
5. Click Refresh icon and check what is updated.
'26&RPPDQGPRGH
This method is just for USB Port. Connect to PC with USB cable and enter DOS Command to upgradethe Firmware
< Method >
7KHUVWRIDOOQHHGWKHOHVGRZQEDWGRZQBFRPELQISUWH[HDQG5RP)LOHOHQDPHIRUXSJUDGH
6DYHWKHOHVLQWKHVDPHIROGHU
2. In the DOS, input as below and push the enter key. Then, it will be automatically upgraded.3. There are two commands for the conditions of product.:KHQWKHSURGXFWLVLQLGOHFRQGLWLRQGRZQURPOH
:KHQWKHSURGXFWLVLQ5HDG\FRQGLWLRQ7(&+02'('$7$6(783)/$6+83*5$'(/2&$/FRS\E
URPOHOSW4. Do not turn off the power while upgrading process.
2) Remote Upgrade7KLVLVDIXQFWLRQWKDWDID[ZLWKWKHODWHVWUPZDUHVHQGVOHVWRDID[LQORQJGLVWDQFHWKURXJKWHOHSKRQH
line.
< Method >
%HIRUHUHPRWHXSJUDGHWKHODWHVWUPZDUHVKRXOGEHORDGHGLQWRWKHPDFKLQH
7(&+02'('$7$6(783)/$6+83*5$'(5(027(
2. Input the fax number, which needs to be upgraded. (Several faxes can be upgraded at the same time. Inthis case, enter the each fax number.)
$IWHUSXVKWKHHQWHUEXWWRQVHQGWKHUPZDUHOHE\FDOOLQJWRWKHDSSRLQWHGQXPEHU$URXQGa
PLQXWHVQHHGVWRVHQGWKHOH
< Caution >
1. sending and receiving fax must be the same model.2. A sending fax must be set up as ECM mode, and a receiving memory must be set up as 100%. If not, the
function operates abnormally
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Alignment & Troubleshooting
Service Manual4-15
Samsung Electronics
S/W of Maintenance
1. Clearing the Memory
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Alignment & Troubleshooting
Service Manual4-16
Samsung Electronics
3. Remote Diagnostic System(RDS)5'6DQG)7(*7$XWRPDWLF2UGHULQJ6\VWHPZLOOHQKDQFHWKHTXDOLW\DQGWKHVSHHGRIDIWHUVDOHV
service and monitor the performance of the MFP at the customer site.0)36KRXOGEHFRQQHFWHGE\0)36HUYHU
3.1 Required components of RDS
RDS for MFP system consists of the following three components that communicate with each other1. Main RDS Server connected to FAX-MODEM.2. RDS Client Application.3. RDS on MFP.
3.2 Enable of RDS on MFP
This value is in Tech Mode.The factory default for Consumables Status Update / Error Proactive value is Disabled.
< Method >
1. MFP Should be connected by RDS Server.2. Service numbers should have the proper values.7(&+02'(!'$7$6(783!127,)
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Alignment & Troubleshooting
Service Manual4-17
Samsung Electronics
4.1.5.4 Machine Test
SWITCH TEST
8VHWKLVIHDWXUHWRWHVWDOONH\VRQWKHRSHUDWLRQFRQWUROSDQHO7KHUHVXOWLVGLVSOD\HGRQWKH/&'ZLQGRZeach time you press a key.
MODEM TESTUse this feature to hear various transmission signals to the telephone line from the modem and to check themodem. If no transmission signal sound is heard, it means the modem part of the main board malfunctioned.
DRAM TEST8VHWKLVIHDWXUHWRWHVWWKHPDFKLQHV'5$07KHUHVXOWDSSHDUVLQWKH/&'GLVSOD\
,IDOOPHPRU\LVZRUNLQJQRUPDOO\WKH/&'VKRZV2.!!
ROM TEST
8VHWKLVIHDWXUHWRWHVWWKHPDFKLQH65207KHUHVXOWDQGWKHVRIWZDUHYHUVLRQDSSHDULQWKH/&'GLVSOD\)/$6+9(59
(1*,1(9(59
PATTERN TESTUsing this pattern printout, you can check if the printer mechanism is functioning properly.It is needed in the production progress. Service person doesnt need to use it.
SHADING TEST7KHIXQFWLRQLVWRJHWWKHRSWLPXPVFDQTXDOLW\E\WKHVSHFLFFKDUDFWHURIWKH&&'&KDUJH&RXSOHG
Device). If the copy image quality is poor, perform this function to check the condition CCD unit.
< Method >
6HOHFWWKH>$'-8676+$',1*@DWWKH7(&+02'(
2. Push the SET UP button then an image will bescanned.
$IWHUWKHVFDQ&&'6+$',1*352),/(ZLOOEH
print out.4. If the printed image is different to the image, the
CCD is defect.
NOTICE : When you test CCD, make sure that the
cover is closed.
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Alignment & Troubleshooting
Service Manual4-18
Samsung Electronics
4.1.5.5 Report
PROTOCOL LIST
This list shows the sequence of the CCITT group 3 T.30 protocol during the most recent sending or receivingoperation. Use this list to check for send and receive errors. If a communication error occurs while thePDFKLQHLVLQ7(&+PRGHWKHSURWRFROOLVWZLOOSULQWDXWRPDWLFDOO\
OTHER ITEMThis list provides a list of the user system data settings and tech mode settings.
&RQJXUDWLRQUHSRUW
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Alignment & Troubleshooting
Service Manual4-19
Samsung Electronics
supplies information report
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Alignment & Troubleshooting
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Samsung Electronics
4.1.6 EDC Mode
EDC Mode is independently controled system f/w and diagnose printers each function.
0HWKRGWRHQWHU
$IWHUWXUQRQWKHV\VWHPSRZHUFKHFNWKH5HDG\PHVVDJHRQWKH/&'
2. To enter the EDC Mode, Push the button like next time.0HQX6WRS/HIWDUURZ%DFN2.5LJKWDUURZ
7KHPHVVDJH&20321(177(673UHVV0HQX.H\GLVSOD\RQWKH/&'
7RJHWRXWRIWKH('&0RGH3UHVVWKH6WRSNH\
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Alignment & Troubleshooting
Service Manual4-21
Samsung Electronics
('&0RGH0HQX
0. Cover Status
Item Description
Front Cover :KHQWKHIURQWFRYHURSHQHG2SHQPHVVDJHGLVSOD\/&',IWKHIURQW
FRYHUFORVHG&ORVHGPHVVDJHGLVSOD\/&'
1. Sensor Status
Item Description
Regi/Feed/Exit Sensor ,IDFWXDWRULVFKHFNHGE\VHQVRU:LWKRXW3DSHUPHVVDJHZLOOEH
GLVSOD\HGLIQRW:LWK3DSHUZLOOEH
Empty ,ISDSHUH[LVWVLQWKHWUD\3UHVHQWZLOOEHGLVSOD\HG,IQRW(PSW\ZLOO
be.
2. Motor Test
Item Description
Main Mtr Nor. ,I2.NH\LVSXVKHGDIWHU21GLVSOD\HGPRWRUZLOOEHUXQ0DLQPRWRU
ZLOODXWRVWRSDIWHUVHFRQGVDQG2))PHVVDJHZLOOEHGLVSOD\HG
Slow ,I2.NH\LVSXVKHGDIWHU21GLVSOD\HGPRWRUZLOOEHVORZO\UXQ
0DLQPRWRUZLOODXWRVWRSDIWHUVHFRQGVDQG2))PHVVDJHZLOOEH
displayed.
3. Fan Test
Item Description
Fuser Fan ,I2.NH\LVSXVKHGDIWHU21GLVSOD\HGIDQZLOOEHUXQ)XVHUIDQZLOO
DXWRVWRSDIWHUVHFRQGVDQG2))PHVVDJHZLOOEHGLVSOD\HG
SMPS Fan ,I2.NH\LVSXVKHGDIWHU21GLVSOD\HGIDQZLOOEHUXQ6036IDQZLOO
DXWRVWRSDIWHUVHFRQGVDQG2))PHVVDJHZLOOEHGLVSOD\HG
/68)DQ ,I2. NH\LVSXVKHGDIWHU21 GLVSOD\HGIDQZLOOEHUXQ/68IDQZLOO
DXWRVWRSDIWHUVHFRQGVDQG2))PHVVDJHZLOOEHGLVSOD\HG
4. Clutch Test
Item Description
Pick up Clutch :KHQ2. NH\LVSXVKHGDIWHU21PHVVDJHGLVSOD\HGFOXWFKWXUQRQ
SLFNXSFOXWFKZLOOEHWXUQRIIDIWHUVHFRQGVDQG2))PHVVDJHZLOOEH
displayed.
Regi Clutch :KHQ2. NH\LVSXVKHGDIWHU21PHVVDJHGLVSOD\HGFOXWFKWXUQRQ
SLFNXSFOXWFKZLOOEHWXUQRIIDIWHUVHFRQGVDQG2))PHVVDJHZLOOEH
displayed.
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Alignment & Troubleshooting
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Samsung Electronics
5. Fuser Ctrl
Item Description
Temp Control )XVHURQDQGRII21LVVHOHFWHGIXVHUZLOOEHDFWLYHDQGGLVSOD\WKH
IXVHUWHPSHUDWXUH>;;;@EXW2))LVVHOHFWHGIXVHUZLOOEHVWRSDQG>@
display
Fuser Temp. )XVHUWHPSHUDWXUHGLVSOD\HGRQ/&'H[DPSOH>@
6. LSU Control
Item Description
/'3RZHU :KHQ2.NH\LVSXVKHGDIWHU21PHVVDJHGLVSOD\HG2))PHVVDJH
will be displayed after 10 seconds
/680RWRU ,I2.NH\LVSXVKHGDIWHU21 GLVSOD\HGPRWRUZLOOEHUXQ/68PRWRUZLOODXWRVWRSDIWHUVHFRQGVDQG2))PHVVDJHZLOOEHGLVSOD\HG
/685HDG\ ,I2.NH\LVSXVKHGDIWHU21 GLVSOD\HGPRWRUZLOOEHUXQ PHVVDJH
will be displayed.
+V\QF ,I2. NH\LVSXVKHGDIWHU21 GLVSOD\HGPRWRUZLOOEHUXQ PHVVDJH
will be displayed.
7. DEV Control
Item Description
7+9 ,I2. NH\LVSXVKHGDIWHU21 GLVSOD\HG7+9ZLOOEHWXUQHGRQ
7+9 ,I2. NH\LVSXVKHGDIWHU21 GLVSOD\HG7+9ZLOOEHWXUQHGRQ
Dev Bias ,I2.NH\LVSXVKHGDIWHU21GLVSOD\HG'HY%LDVZLOOEHWXUQHGRQ
0+9%LDV ,I2.NH\LVSXVKHGDIWHU21 GLVSOD\HG0+9%LDVZLOOEHWXUQHGRQ
$&521
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Alignment & Troubleshooting
Service Manual4-23
Samsung Electronics
4.1.7 Abnormal Image Printing and Defective Roller
If abnormal image prints periodically, check the parts shown below.
No Roller Abnormal image period Kind of abnormal image
1 OPC Drum 75.5mm :KLWHVSRW%ORFN6SRWV
2 Charge Roller 26.7mm Block Spot and Periodic Band
3 Supply Roller 47.1mm Periodic Band by little difference of density
4 Developing Roller 35.2mm :KLWH6SRW+RUL]RQWDOEODFNEDQG
5 Transfer Roller 47mm Ghost, Damaged Image by abnormal transfer
6 +HDW5ROOHU 77.8mm Black Spots or Vertical Black Band
7-1 3UHVVXUH5ROOHUBVW 62.8mm Blackground
7-2 3UHVVXUH5ROOHUBVW 37.7mm Blackground
7-17-2
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Alignment & Troubleshooting
Service Manual4-24
Samsung Electronics
4.1.8 Error Message
Messages appear on the control panel display to indicate the machines status or errors. Refer to the tables
below to understand the messages meaning and correct the problem if necessary. Messages and theirmeanings are listed in alphabetical order.
[[[LQGLFDWHVWKHPHGLDW\SH
\\\LQGLFDWHVWKHWUD\
Message Meaning Suggested solutions
[COMM. Error] The machine has a communication
problem.
Ask the sender to try again.
[Incompatible] The machine has received a fax from