Samsung ML-3560 Service Manual. Parts List

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DIGITAL LASER PRINT ML-3560 Series

ML-3560/XAA

Basic Model :ML-3560

Manual

SERVICE

DIGITAL LASER PRINT CONTENTS

1. Precautions

2. Reference Information

3. Specifications

4. Summary of product

5. Disassembly and Reassembly

6. Alignment and Adjustments

7. Troubleshooting

8. Exploded Views and Parts List

9. Block Diagram

10. Connection Diagram

11. Schematic Diagram

Precautions

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1. Precautions

In order to prevent accidents and to prevent damage to the equipment please read the precautions listed below carefully before servicing the printer and follow them closely.

1.1 Safety Warning

(1) Only to be serviced by appropriately qualified service engineers.

High voltages and lasers inside this product are dangerous. This printer should only be serviced by a suitably trained and qualified 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 fire hazards.

(3) Laser Safety Statement

The Printer is certified 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 certified 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 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

reflected beam, although invisible, can damage your eyes. When using this product, these basic safety pre-cautions should always be followed to reduce risk of fire, electric shock, and injury to persons.

CAUTION - INVISIBLE LASER RADIATION

WHEN THIS COVER OPEN. DO NOT OPEN THIS COVER.

VORSICHT - UNSICHTBARE LASERSTRAHLUNG,

WENN ABDECKUNG GEFFNET. NICHT DEM STRAHL AUSSETZEN.

ATTENTION - RAYONNEMENT LASER INVISIBLE EN CAS

D OUVERTURE. EXPOSITION DANGEREUSE AU FAISCEAU.

ATTENZIONE - RADIAZIONE LASER INVISIBILE IN CASO DI

APERTURA. EVITARE L ESPOSIZIONE AL FASCIO.

PRECAUCION - RADIACION LASER IVISIBLE CUANDO SE ABRE.

EVITAR EXPONERSE AL RAYO.

ADVARSEL. - USYNLIG LASERSTRLNING VED BNING, N R

SIKKERHEDSBRYDERE ER UDE AF FUNKTION. UNDG UDSAETTELSE FOR STR LNING.

ADVARSEL. - USYNLIG LASERSTRLNING N R DEKSEL

PNES. STIRR IKKE INN I STR LEN.

UNNG EKSPONERING FOR STR LEN.

VARNING - OSYNLIG LASERSTRLNING N R DENNA DEL

R PPNAD OCH SP RREN R URKOPPLAD.

BETRAKTA EJ STR LEN. STR LEN R FARLIG.

VARO! - AVATTAESSA JA SUOJALUKITUS OHITETTAESSA

OLET ALTTIINA N KYM TT M LLE LASERS TEILYLLE L KATSO STEESEEN.

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Precautions

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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 toner cartridges away from children. The toner powder contained in the 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 fire.

(1) Use only the correct voltage, failure to do so could damage the printer and potentially cause a fire or electric

shock.

(2) Use only the power cable supplied with the printer. Use of an incorrectly specified cable could cause the cable

to overheat and potentially cause a fire.

(3) Do not overload the power socket, this could lead to overheating of the cables inside the wall and could lead to

a fire.

(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 fire 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 com-

pletely otherwise a poor contact could cause overheating possibly leading to a fire. When removing the power connector grip it firmly 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 fire 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 fire 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 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 printer in a clean well ventilated location. Do not position the machine

near a humidifier. Damp and dust build up inside the machine can lead to overheating and cause a fire.

(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 fire.

(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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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 fingers,

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 fire hazard.

(4) Do not install the machine in areas with high dust or moisture levels, beside on open window or close to a

humidifier 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 fire.

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-fitting any parts do not use excessive force, especially when fitting 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 fluorescent or incandescent room lighting. Exposure for as little as 5 mins can damage the surface’s 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. T ake 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

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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 finger 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.

This printer weighs 21kg 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 21Kg, 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.

Precautions

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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 field 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 classified as “anti-static” can generate electrical charges sufficient to damage ESDs.

5. Do not use Freon-propelled chemicals. When sprayed, these can generate electrical charges sufficient 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 floor, can generate static electricity sufficient to damage an ESD.

Reference Information

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2. Reference Information

This chapter contains the tools list, list of abbreviations used in this manual, and a guide to the location space required when installing the printer. A definition of tests pages and Wireless Network information definition is also included.

2.1 Tool for Troubleshooting

The following tools are recommended safe and easy troubleshooting as described in this service manual.

• DVM (Digital Volt Meter)

Standard : Indicates more than 3 digits.

• Driver

Standard : "-" type, "+" type (M3 long, M3 short, M2

long, M2 short).

• Tweezers

Standard : For general home use, small type.

• Cotton Swab

Standard : For general home use, for medical service.

• Cleaning Equipments

Standard : An IPA(Isopropyl Alcohol)dry wipe tissue or

a gentle neutral detergent and lint-free cloth.

• Vacuum Cleaner

• Software (Driver) installation CD ROM

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2.2 Acronyms and Abbreviations(1)

The table below explains the abbreviations and acronyms used in this service manual. Where abbreviations or acronyms are used in the text please refer to this table.

Abbreviations Explanation

AP Access Point AC Alternating Current APC Auto Power Control ASIC Application Specific Integrated Circuit ASSY assembly BIOS Basic Input Output System BLDC Brush-less Direct Current CMOS Complementary Metal Oxide Semiconductor CN connector CON connector CPU Central Processing Unit dB decibel dBA decibel A dBM decibel milliwatt DC direct current DCU Diagnostic Control Unit DPI Dot Per Inch DRAM Dynamic Random Access Memory DVM Digital Voltmeter ECP Enhanced Capability Port EDC Embedded Diagnostic control EEPROM Electronically Erasable Programmable Read Only Memory EMI Electro Magnetic Interference EP electrophotographic EPP Enhanced Parallel Port FPOT First Printout Time F/W firmware GDI graphics device interface GND ground HBP Host Based Printing HDD Hard Disk Drive H/H High temperature and high marshy place HV high voltage HVPS High V oltage Power Supply I/F interface I/O Input and Output IC integrated circuit IDE Intelligent Drive electronics or Imbedded Drive Electronics

Reference Information

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Acronyms and Abbreviations(2)

Abbreviations Explanation

IEEE Institute of Electrical and Electronics Engineers. Inc IP A Isopropy Alcohol IPM Images Per Minute LAN local area network lb pound(s) LBP Laser Beam Printer LCD Liquid Crystal Display LED Light Emitting Diode L/L Low temperature and low marshy place LSU Laser Scanning Unit MB megabyte MHz megahertz MPF Multi Purpose Feeder NIC Network Interface Card N/N Normal temperature and normal marshy place NVRAM nonvolatile random access memory OPC Organic Photo Conductor OP Operation Panel Equipment PBA Printed Board Assembly PCL Printer Command Language , Printer Control Language PDL Page Discription Language PPM Page Per Minute PPS Pulse Per Second PS Post Script PTL Pre-Transfer Lamp PWM Pulse Width Modulation Q-PID Quick Printer Initiating Device Q ty quantity RAM Random Access Memory ROM Read Only Memory SCF Second Cassette Feeder SMPS Switching Mode Power Supply SPGP Samsung Printer Graphic Processor SPL Samsung Printer Language Spool Simultaneous Peripheral Operation Online SW switch sync synchronous or synchronization USB Universal Serial Bus WECA Wireless Ethernet Compatibility Alliance

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2.3 Select a location for the printer

• Leave enough room to open the printer trays, covers, and allow for proper ventilation. (see diagram

below)

• Provide the proper environment :

- Afirm, level surface

- Away from the direct airflow of air conditioners, heaters, or ventilators

- Free of extreme fluctuations of temperature, sunlight, or humidity

- Clean, dry, and free of dust

Reference Information

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2.4 Sample Tests Patterns

The sample patterns shown below are the standard test patterns used in the factory. The life of the toner cartridge, developer cartridge and printing speed are measured with the pattern shown below (5%). The A4 ISO 19752 standard pattern samples are reproduced reduced to 70% of the actual A4 size.

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2.5 Wireless LAN

• This product can be used with a wireless LAN (Option)

- The wireless LAN function uses radio technology, instead of using LAN cable, to connect to an access point for printing.

- For a wireless LAN connection in Infrastructure mode an AP is needed, (purchased separately)

- For a wireless LAN connection in Ad-Hoc mode an appropriate Wireless I/F card is required fitted to a computer, (purchased separately)

- It is possible to use a wireless LAN connection with wired LAN.

- If an AP is installed in an office or at home, the wireless LAN function can be simply configured and used.

• Types of desk top PC (or Lap top) that uses the wireless LAN.

• About the certificated mark of Wi-Fi

- Wi-FiTMis a registered trademark of the WECA (Wireless Ethernet Compatibility Alliance). Over 50 wireless LAN companies are member of this organisation. Most of the main wireless networking companies are attending including such companies as Lucent Technologies, Cisco, Intel/Symbol, 3Com, Enterasys (Cabletron), Compaq, IBM, Nokia, Dell, Philips, Samsung Electronics, Sony, Intersil, etc.. This mark certifies mutual compatibility amongst the product of these companies. Wi-FiTM(IEEE 802.1) is certified as a standard of the wireless LAN market.

• LED Condition and Status

Division Basic type Recommend type

CPU Over PENTIUM 233M PENTIUM 300MHz MEMORY Over 64MB Over 128MB VIDEO CARD Over 800X600 Over 1024X768 OS Over WINDOWS 98 Over WINDOWS ME INTERFACE CARD A product has a certificated mark of Wi-Fi

LED Condition Status

Active LED random blink Normal NPC &Normal packet receive Active LED regular blink Normal NPC &No Packet Active LED Off/On maintenance

NPC Initial inferiority

Link LED On The link LED On OPC,Normally linked

(Red:Wireless,Green:Wire,Orange:Wire/Wireless)

Link LED Off Link LED off NPC,Link Inferiority

Antenna connector

RJ-45 Jack

Active LED(Green)

Link LED

(Red/Green/Orange)

[LED STATUS]

Specifications

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3. Specifications

Product specifications are subject to change without notice.See below for product specifications.

3.1 General Specifications

ITEM DESCRIPTION

Print Method Non-impact Electro-photography Development system Non-Magnetic, Mono-Component, Non-Contact Developing System Transfer system Conductive roller transfer Fuser Unit(T oner fix) Pressure and Heating with e-coil *Print Speed Up to 33 PPM in A4 size

Up to 35 PPM in Letter size Resolution Up to 1200 x 1200 DPI effective output Source of Light Laser diode (LSU : Laser Scanner Unit) Warm-Up Time Power-on boot : 40 seconds First Print Time 9 seconds or less Feed Method Cassette & Manual, Option Feeder(SCF) duplex Optional Media Size 76mm * 128mm(3 *5”) to 216mm * 356mm(8.5 *14”) Media Thickness 16 ~ 28 lb(60 to 105g/m2), Manual : 16 ~43lb(60 to 163g/m2) Dimension(W X D X H) 396 X 453 X 348 mm / 15.6” X 17.8” X 13.7” inch (without options) Weight Net : 17.5 Kg with print cartrige

Gross : 21 Kg **Acoustic Noise Stand by : Less than 35 dB

Printing: Less than 55 dB

Sleep mode : Background Noise Power save mode Enable Toner save mode Enable Consumable Parts Retard Roller Up to 150,000 Pages

Transfer Roller Up to 150,000 Pages

Fuser Assembly Up to 150,000 Pages

Toner Sensor Y es(dot counting)

Toner Type Non-Magnetic toner

Toner Initial 6,000 pages@ISO 5% coverage

Toner sale 6,000 or 12,000 pages@ISO 5% coverage Optional Parts Optional Tray Paper Capacity : 500 Sheets

Wired NPC Ethernet 10/100 base TX

(ML-3560/ML-3561N Protocols : TCP/IP, SPX/IPX, Ethertalk, SNMP,

: Optional HTTP1.1, DLC/LLC ML-3560 : Basic) 8MB RAM Buffer for faster graphics performance

2MB Flash Memory for upgrade

Throughput : 200 ~ 300K TCP/IP SDRAM DIMM 32, 64, 128, 256MB 100PIN SDRAM DIMM Wireless NPC IEEE802.11b supportT (Option) Speed : 1 1, 5.5, 2, 1 Mbps

Operation range : 30m(Indoors), 150m(Outdoors) Duplex Unit

* Print speed will be affected by Operating System used, computing performance, application software, con-

necting method, media type, media size and job complexity.

** Sound Pressure Level, ISO 7779

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3.3 Electrical Specification

ITEM DESCRIPTION REMARK

Input Voltage Nominal input voltage 220-240 VAC / 110~127VAC

Input voltage range 198-254 VAC/ 99~135VAC Nominal frequency 50/60 MHz Frequency tolerance +3Hz

Power Consumption

Printing : 600W(average) Sleep : under 12W

3.2 Controller Specification

ITEM DESCRIPTION

Processor(CPU) SPGPv3 400Mhz Memory NAND FLASH 32MB

RAM : 32MB Option DIMM module : 32, 64, 128, 256MB (SDRAM) 100Pin SDRAM DIMM (

Use only Samsung Memory Parts made specifically for this printer.

)

EEPROM(NVRAM) : 4Kbyte

Emulation PCL6 : Win9x/ME/NT4.0/2000/XP

Postscript Level3 : MAC OS 8.6 ~ 9.2/10.1 ~ 10.3 PCL5e : Various Linux OS including Red Hat, Caldera, Debian, Mandrake, Slackware,

SuSE and Turbo Linux

Interface Parallel : IEEE 1284 Bidirectional Parallel

- Modes supported : Compatible,Nibble,Byte,ECP

USB(without HUB mode)

-USB 2.0 compliant -High Speed

Network Interface : - 10/100 Base TX

- 802.1 1b Wireless LAN Interface switching Automatic Interface time-out 999 seconds Font 45 Scalable Font , 1 Bitmap Font ,Postscript 3 internal font 136

3.4 TONER Cartridge (Developer)

ITEM DESCRIPTION REMARK

Life span Starter: Up to 6,000 pages

A4 Size, @ISO 5% Coverage, SIMPLEX

Replacement : Up to 12,000 pages Developing Non Contact Developing Charging Conductive Roller Charging Toner supply Method Not possible, replace the whole print cartridge. Toner checking sensor Fitted Ozone 0.1PPM or less Style Single cartridge

3.6 Paper Handling Specifications

>> Input Paper Size

Supported Paper, Transparencies, and Other Specialty Media

PAPER TYPE/SIZE DIMENSIONS TRAY 1(MPT) TRAY 2 TRA Y3 2-SIDED PRINTING

Letter 8.5 x 11 in. O O O O Legal 8.5 x 14 in. O O O O US Folio 8.5 x 13 in. O O O O A4 210 x 297 mm O O O O B5-JIS 182 x 257 mm O O O ISO-B5 176 x 250 mm O O O A5 148 x 210 mm O O O Executive 7.25 x 10.5 in. O O O Statement 5.5 x 8.5 in O US Postcard 3.5 x 5.5 in O Index Card 3 x 5 in O A6 Postcard 105 x 148 mm O Envelopes

Monarch 3.88 x 7.5 in. O #10 Commercial 4.13 x 9.5 in. O C5 162 x 229 mm O C6 1 14 x 162 mm O DL 1 10 x 220 mm O

Transparencies

Letter 8.5 x 11 in. O X X X A4 210 x 297 mm O X X X

Labels

Letter 8.5 x 11 in. O A4 210 x 297 mm O Custom Width = 76~216 mm (3~8.5 in.); O

Length = 127~356 mm (5~14 in.)

Tray 1 (MPT) Weight : 60~163 g/m 2 (16~43 lb.) Tray 2 and 3 Weight : 60~105 g/m 2 (16~28 lb.) Duplex Weight : 75~90 g/m 2 (20~24 lb.)

O : Supported

3.5 Environmental Condition

ITEM OPERA TING STORAGE

Temperature 10~30˚C(50-90˚F) -20~40˚C (-4~104˚F) Humidity 20~80%RH 10~80%RH

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>> Input capacity

>> Output capacity

ITEM DESCRIPTION

Cassette Paper 500 sheets (75gr) MP tray Paper 100 sheets (75gr)

Transparencies 50 sheets Envelopes 10 sheets Labels 25 sheets

Option Cassette 500sheets (75gr)

ITEM DESCRIPTION

Face Down(Top) tray 250 sheets Face UP(Rear) tray 100 sheets

Summary of Product

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4. Summary of Product

This chapter describes the functions and operating principal of the main component.

4.1 Printer Components

4.1.1 Front View

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4.1.2 Rear View

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4.1.3 Control Panel

The control panel on the top right side of your printer has the display and the nine buttons.

4.1.3.1 Display

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4.1.3.2 Overview of Control Panel Menus

The control panel menus are used to configure the printer for your environment.

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4.1.3.3 Special Features

Y our new printer is equipped with special features that improve the print quality,giving you a competitive edge. Y ou can:

Print with excellent quality and high speed

• Y ou can print at 1200 dots per inch (dpi).

• Y our printer prints 35 pages-per-minute (Letter size), 33 pages-per-minute (A4 size).

Handle paper flexibly

• A100-sheet Multi-Purpose T ray supports letterheads, envelopes,labels,transparencies,custom-sized materials,postcards,and heavy paper.

• Standard 500-sheet input tray (T ray1)and optional 500-sheet input tray (Tray2)supports all standard sizes of paper.

• Two output tray;select either the top output (face-down)or the rear output tray (face-up)for the most convenient access.

• Straight-through paper path capability from the Multi-Purpose T ray to the rear output tray.

Create professional documents

• Y ou can customize your documents using W atermarks, such as “Confidential.”

• Print Booklets .This feature enables you to easily print the pages required to create books.Once printed,all you have to do is to fold and staple the pages.

• Print Posters .The text and pictures of each page of your document are magnified and printed across the selected sheet of paper.After the document has printed,trim off the white edges of each sheet.Tape the sheets together to form a poster.

Save your time and money

• This printer allows you to use Draft to save toner .

• Y ou can print on both sides of the paper to save paper (double-sided printing ).

• Y ou can print multiple pages on one single sheet of paper to save paper (N-Up printing ).

• Preprinted forms and letterheads can be printed on plain paper.

• This printer automatically conserves electricity by substantially reducing power consumption when not printing.

• This printer meets Energy Star guidelines for energy efficiency.

(

)

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Expand the printer capacity

The following printer options and supplies are available for Phaser 3500 printers:

Print in various environments

• You can print in Windows 95/98/Me/NT4.0/2000/XP .

• Your printer is compatible with Linux and Macintosh .

• Your printer comes with both the Parallel and USB interfaces.

You can also use a network interface. ML-3561N comes with a built-in network interface,10/100 Base TX. ML-3561N also has a wireless network interface. But, you need to add

the optional network interface card to ML-3560.

Printer Features

The table below lists a general overview of features supported by your printer.

Features Printer Configuration

Ml-3560 ML-3561N ML-3561ND

Maximum Print Speed Monochrome 35 35 35 Memory ( Standard) 32 Mbytes 32 Mbytes 64 Mbytes Up to 286 Mbytes Optional PostScript and PCL Fonts Yes Yes Yes Default Resolutions ( dpi) 600 x 600 dpi 600 x 600 dpi 600 x 600 dpi 500-Sheet Feeder Optional Optional Optional Network Interface Optional Standard Standard Automatic 2-Sided Printing ( Duplex) Optional Optional Standard HDD Optional Optional Optional Wire Less N/W( 802.11b) Optional Optional Optional Duplex Unit Optional Optional Standard

Item Part Number

32 Mbytes additional RAM memory ML-05MB/SEE 64 Mbytes additional RAM memory ML-05MC/SEE 128 Mbytes additional RAM memory ML-05MD/SEE 256 Mbytes additional RAM memory ML-05ME/SEE Network Interface Card ( NIC) Duplex Unit 500-Sheet Feeder ( includes tray) Standard-Capacity Print Cartridge ( 6,000 pages @ 5% area coverage) ML-3560D6 High-Capacity Print Cartridge ( 12,000 pages @ 5% area coverage) ML-3560DB

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4.2 System Layout

❶ Cassette ❷ Duplex ❸ MPF ❹ Print Cartridge ❺ LSU ❻ Fuser ❼ SMPS & HV PS Board ❽ Duplex Solenoid

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4.2.1 Feeding

It is consists of a basic cassette, an MP tray for supplying different types of media : envelope, label special paper, duplex unit, and parts related to paper transferring.

1) Separation method

Separate it from the friction pad mounted to the center of the cassette and apply retard roller that uses a spring clutch. Afeed roller uses an electronic clutch to control driving power.

2) Basic cassette

It takes a center loading method and applies 'friction pad separating method.' It means that there is a paper sensor, but a paper size is detected after detecting the first paper by software. Both the side guide and the rear guide can be adjusted for for various types of papers from A5 to legal size paper. It has a paper existence sensing function ( Capacity: 500 sheets of general paper) , paper arranging function, various size papers accepting function, SCF paper path function, and displaying function of paper remaining amount. In the front side, there is a paper level indicator.

3) Pick-up roller

It has functions such as a paper pickup function, driving control function, paper feeding function, and removing electronic static function.

4) Retard roller

It takes an arrangement method which uses a stopper roller and a weight without electric actuator. It has paper separating function, driving control function, and multi feeding prevention function.

6) Registration roller

It has a paper arranging function, paper transferring function, paper detecting function, jam removing function, and so on.

7) MP tray

It has a paper arranging function, paper transferring function, jam removing function, and so on. It uses rubbing pad method to feed 100 sheets of general papers and 10 envelops. It is possible to extend to 300mm for accepting a legal size paper.

8) Duplex unit

It has paper transferring function, paper guide function, jam removing function, paper sensing function, and main board supporting function. It is designed for basic attachment, and the duplex feeding takes a side feeding method. Usable papers are A4, letter, and legal size paper. For removing a jam occurred in a front part, it is designed to open a cassette and a guide. It is designed to open a rear cover to remove a jam in a rear part. If a face up tray is open, the duplex option cannot be used.

9) SCF (Second Cassette Feeder)

It is the same method with the main cassette, and the capacity is 500 sheets. It has a separate driving mechanism. It is designed for a common use with a main cassette.

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Samsung Electronics

4.2.2 Transfer

It consists of a PTL ( Pre-transfer Lamp) and a transfer roller. A PTL sheds light on an OPC drum, lowers an electric potential of an OPC drum's surface, and improves the efficiency of the transfer. A transfer roller transfers toner on an OPC drum to the paper. Life span: Print over 150,000 sheets ( In 16~27 )

4.2.3 Driver Ass'y

By driving the motor, the system takes power. It consists of a main motor for feeding fuser and duplex reverse turn, and a deve-motor for a toner cartridge.

- Main Motor : DC 24V , Rated RPM : 1380 rpm

- Deve Motor : DC 24V , Rated RPM : 1407 rpm

4.2.4 Fuser

It is consisted of a heat lamp, heat roller, pressure roller, thermistor and thermostat. It sticks the toner on a paper by heat and pressure to complete the printing job.

- E-coil Heator : 1,300 Watt

50W

1) Thermostat

When a heat lamp is overheated, a Thermostat cuts off the main power to prevent over-heating.

- Non-Cotact type Thermostat

3) Heat roller

The heat roller transfers the heat from the e-coil to apply a heat on the paper. The surface of a heat roller is coated with Teflon, 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 Teflon. When a paper passes between a heat roller and a pressure roller, toner adheres to the surface of a paper permanently.

5) 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

- A fuser power is cut off when a front cover is opened

- Maintain a temperature of fuser cover's surface under 80( C for user, and attach a caution label at where customer can see easily when customer open a rear cover.

4.2.5 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, and turning principle of polygon mirror. The OPC drum is turned 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. In other words, after the /HSYNC signal is detected, the image data is sent to the LSU to adjust the left margin on

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Samsung Electronics

4.2.6 Print Cartridge

By using the electronic photo process, it creates a visual image. In the print cartridge, the OPC unit and the toner cartridge unit are in a body. The OPC unit has OPC drum and charging roller, and the toner cartridge unit has toner, supply roller, developing roller, and blade ( Doctor blade)

- Developing Method: Non-contacting method

- Toner : Non magnetic 1 component pulverized type toner

- The life span of toner : 6,000 or 12,000 pages ( LSA Pattern/A4 standard)

- Toner remaining amount detecting sensor : Yes

- OPC Cleaning : Cleaning blade type

- Management of disusable toner : Collect the toner by using Cleaning Blade

- OPC Drum protecting Shutter : Yes

- Classifying device for toner cartridge : ID is classified by interruption of the frame channel.

Cleaning Roller

Cleaning Blade

-650V

0.15mW

200V

-1.25KV

= -460V

= 1520V, f = 2.5KHz, Duty(-) = 32%

+5.0kV

-50V

Summary of Product

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Samsung Electronics

4.3 Engine H/W Specifications

4.3.1 ML-3560 (PCL) Main Board

The Engine Board and the Controller Board are in one united board.

4.3.1.1 Asic(SPGP V3)

• RM1020E (I-Cache : 32KB, D-Cache-32KB)

• 32-bit RISC embedded processor core

• Dual bus architecture for bus traffic distribution

AMBA High performance Bus ( AHB) System Bus with SDRAM

• SDRAMC

- 32 Bits Only, 100MHz

- 5 Banks ( Up to 128MB per Bank)

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• ROMC - 4 Banks ( Up to 16MB per Bank)

• IOC - 6 Banks ( Up to 16MB per Bank)

• DMAC - 4 Channels

• IEEE1284 compliant parallel port interface

• Printer Video Controller for LBP engines

• Graphic Execution Unit for Banding support of Printer Languages

• HCT / JBIG (Encoding / Decoding)

• Fully Hardware Rotator, Scaler and Halftoner support

• Printer Video Controller for LBP engines

- PV C : Printer V ideo Controller without RETAlgorithm

- HPV C : Printer V ideo Controller with RET algorithm( Line Memory & Lookup Table Memory : 512 x 8,4096 x 16) Dual / Single Beam, LV DS Pad ( V DO, HSYNC)

• PCI Controller

- 32Bits, 33/66MHz

- PCI Local Bus Specification rev. 2.2 compliant

- Host /Agent Mode ( Support 4 Devices in Host Mode)

• NAND Flash Controller

- 8/16 Bits, H/W ECC Generation

- Auto Boot Mode ( using internal SRAM, 4KB)

• Engine Controller

- LSU Interface unit

- Step Motor : 2 Channels

- PWM : 8 Channels

- ADC : 6 Channels

• USB 2.0 Interface

• Package : 496pins PBGA

• Power : 1.2V ( Core) , 3.3V ( IO) power operation

• Speed : 400MHz core( ARM10) operation, 100MHz bus operation

Summary of Product

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4.3.1.2 Memory

• Nand Flash Memory : It stores System Program and downloads the System Program through PC Interface, and in case

of model for export it compresses the PCLfont, then stores it.

- Capacity : 32M byte

• SDRAM : It is used as Swath Buf fer,System Working Memory Area,etc.when printing. It stores Font List,compressed into Flash memory,on DRAM and uses it as PCL font in case of model for export.

- Capacity : 32M Byte( Basic) ,up to 256Mbyte ( User Option)

- Type : SDRAM 100MHz/133MHz ,16bit

4.3.1.3 Others

The Option PBA can be mounted for supporting the serial communication.

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4.3.1.4. SPGP V3 Internal Block Diagram

CLOCK & RESET

GENERATOR

3PLL

Dual/Single Beam

HPVC

7200x16

1024x8

Dual Beam

PVC

Parallel Port

Interface

SDRAM

CONTROLLER

(5CH)

HCT

JBIG

256x3.2x7

1024x8x2

GRAPHIC

EXECUTION

UNIT

ROTATOR/

SCALER/

HALFTONER

1024X8, 256X8

ENGINE

CONTROLLER

LSU I/F

PULSE WIDTH

MODULATOR

MOTOR

CONTROLLER

2X2X128X16

ADC/DAC

MISC & BIST

CONTROLLER

ENGINE

COMM. I/F

INTERRUPT

CTRL

TIME CONTROL

UNIT(6CH)

SYSTEM

BUS

ARBITER

ROM

CONTROLLER

PCI BRIDGE

PCI 2.2

NAND Flash

CONTROLLER

ARM1020E

EXTERNAL

DMA CONTROLLER

(4CH)

CONTROLLER

SFR BUS

INTERFACE

DECODER

SYSTEM BUS

INTERFACE

ETHERNET

UART(5CH)

12C CONTROLLER

AHB

AMBA

BUS

TEST &

JTAG

ADDR/

DATA

MLIX

RTC

Summary of Product

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Samsung Electronics

4.3.1.5 Sensor Input Circuit

• Paper empty sensing

1. Cassette paper empty( Tray1)

- ‘Empty Sensor’detects whether the paper is in the Tray1.

2. MP paper empty( MP Tray)

- ‘MP empty sensor’detects whether the paper is in the MP Tray.

• When ‘Auto’ mode is Setting

If the ‘MP Tray’and ‘Tray’are all empty, ‘Paper empty Tray1’ messeage is displayed on the LCD panel.

• Feed sensing

The feed sensor detects that the entering paper from Tray1 or Tray2. When ‘Jam at top, open top cover’message is displayed on the LCD panel, the feed sensor should be checked.

• Paper exit sensing

The exit sensor detects that ‘Jam at exit’ error. When the paper sticks into the exit part, ‘Jam at Exit Open top cover’message is displayed on the LCD panel.

• Cover open sensing

The cover open switch is on the top frame, it dectects whether top cover is open or closed. When top cover is open, ‘Close Open’ message is diplayed on the LCD panel.

• Motor driving

There are two BLDC motors. The one is for developer driving and the other is for other driving part operating.

• Output tray sensor

The output tray sensor detects that the exit paper out for output tray.

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4.3.2 SMPS & HVPS board

The SMPS supplies DC Power to the System. It takes 110V /220V and outputs the +3.3V , +5V +24V to supply the power to the main board. The HV PS board creates the high voltage.

Summary of Product

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4.3.2.1 HVPS (High Voltage Power Supply)

• Transfer High Voltage (THV+)

- Input V oltage : 24 V DC 15%

- Output V oltage : MAX +5.0KV 5 %, ( Duty V ariable)

- Input contrast of the V oltage stability degree : under 5 %( fluctuating input 21.6V ~26.4V ) Loading contrast : 5 %or less

- Output V oltage Rising Time : 100 ms Max

- Output V oltage Falling Time : 100 ms Max

- Fluctuating transfer voltage with environmental various : +600 V ~5 KV

- Environment Recognition Control Method : The THV -PWM ACTIV E is transfer active signal. It detects the resistance by recognizing the voltage value, F/B, while permits the environmental recognition voltage.

- Output V oltage Control Method : T ransfer Output V oltage is outputted and controlled by changing Duty of

THV PWM Signal.

• Charge Voltage (MHV)

- Input V oltage : 24 V DC 15%

- Output V oltage : -1.1KV ~ -1.6KV DC 3%

- Output V oltage Rising Time : 50 ms Max

- Output V oltage Falling Time : 50 ms Max

- Output Loading range : 30 ~1000

- Output Control Signal( MHV -PWM) : CPU is HV output when PWM is Low

• Cleaning Voltage (THV-)

- The ( +) Transfer V oltage is not outputted because the THV PWM is controlled with high.

- The ( -) Transfer V oltage is outputted because the THV -Enable Signal is controlled with low

- The output fluctuation range is big because there is no Feedback control.

- Output V oltage : -1.0KV 15%( when cleaning, 200M

• Developing Voltage (DEV) <DC>

- Input V oltage : 24 V DC 15%

- Input contrast of the output stability degree : 3 % or less Loading contrast : 3 % or less

- Output V oltage Rising Time : 50 ms Max

- Output V oltage Falling Time : 50 ms Max

- Output Loading range : 10M ~1000

- Output Control Signal ( DEV Vdc-PWM) : the CPU output is HV output when PWM is low.

<AC>

- Input V oltage : 18Vdc

- Output V oltage : PWM Control ( Vp-p, VAC)

- Input Contrast : 3 %

- Output Control Signal : The CPU is HV Output when Dev VAC Vp-p, DEV AC ph/M, VAC On-Off is low.

• Supply

- Output V oltage : ZENER using, DEV

- Input contrast of the output stability degree : under 3 % Loading contrast : 3% or less

- Output V oltage Rising Time : 50 ms Max

- Output V oltage Falling Time : 50 ms Max

- Output Loading range : 10 ~1000

- Output Control Signal ( DEV Vdc-PWM) : the CPU is HV output when PWM is low.

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Samsung Electronics

4.3.2.2 SMPS (Switching Mode Power Supply)

t is the power source of entire system. SMPS has three output channels. Which are 3.3V , +5V and +24V .

• AC Input

- Input Rated V oltage : 220 ~ 240V AC / 110 ~ 127V AC

- Input V oltage fluctuating range : 198 ~ 254V AC / 99 ~ 135V AC

- Rated Frequency : 50/60 Hz

- Frequency Fluctuating range : 47 ~63 Hz

• Rated Output Power

• Power Consumption

• Length of Power Cord :1830 50mm

• Power Switch :Use

NO ITEM CH1 CH2 CH3 CH4

1 CHANNEL NAME +3.3V +5V +24.0V S 24.0V F 2 CONNECTOR PIN CON 3 CON 3 CON 3

3.3V PIN:9,11,13 5V PIN:15,17 24V PIN:1,3,5 GND PIN:21 GND PIN:19 GND PIN:23,25,27

3 Rated Output 3.3V 5% +5V 5% +24V 10%+15% +24V 10%+15%

( 3.13~3.47V ) ( 4.75~5.25V ) ( 21.6~27.6V ) ( 21.6~27.6V ) 4 Max.Output Current 2.0A 1.0 A 3.8A 0.7A 5 Peak Loading Current 2.5 A 1.5 A 4.0 A 1.0A 6 RIPPLE NOISE V oltage Under 100mV p-p Under 150mV p-p Under 500mV p-p Under 500mV p-p 7 Maximum output 6.6W 4.0W 67.2W 16.8W 8 Peak output 6.6W 5.0W 91.2W 16.8W 9 Protection for loading Fuse Protection Rugulator Fuse Protection, Short protection

shortage and or Shut down short protection Shut down overflowing current ( 2.5~5.0A) ( 5.5~7.5A) ,

Drop( Trp -10%)

NO Item System

1 Stand-By A V G : 80 Wh 2 PRINTING A V G : 600 Wh 3 Sleep-Mode A V G : 12 Wh under ( Basic model)

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• Feature

- Insulating Resistance :50 or more ( at DC 500V )

- Insulating revisiting pressure : Must be no problem within 1 min.( at 1500V ac, 10mA)

- Leaking Current : under 3.5mA

- Running Current : under 40A PEAK ( AT 25 , COLD ST AR T) under 60APEAK ( In other conditions)

- Rising Time : within 2Sec

- Falling Time : over 20ms

- Surge : Bi-wave 6kV 12ohm ( Com) Bi-wave 3kV 2ohm ( Nor)

• Environment Condition

- Operating temperature range :0 40

- Maintaining temperature range :-25 85

- Preserving Humidity Condition :30% ~ 90%RH

- Operating atmospheric pressure range : 1atm

4.3.2.3 Fuser control

• When the power voltage of the machine is too high or too low Fuser on is stopped to protect the fuser .

• When the AC is not applied to the fuser control circuit, the fuser does not work then ‘Fuser low heat error’ would be

occured.

• When the temperature of the fuser is too high, ‘Engine over heat’error occurs if the cooling operation is not sufficient.

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Samsung Electronics

4.3.3 Engine F/W

4.3.3.1.Control Algorithm

• Feeding

If feeding from a cassette, the drive of the pickup roller is controlled by controlling the solenoid. The on/off of the solenoid is controlled by controlling the general output port or the external output port. If feeding from a manual feeder, decide to insert the paper according to the operation of the manual sensor, and by driving the main motor, insert the paper in front of the feed sensor. While paper moves, occurrence of Jam is judged as below.

• Driver

By gearing,the main motor drives the rollers such as feeding roller, driven by deve-Motor, fuser roller, and exiting roller. The step motor is controlled for the such acceleration section and steady section. In the initial stage of the motor run, appoint the acceleration section to prevent the step-out of the motor . It is controlled by the A3977 motor driver IC. The step signal and the enable signal are sent to make the phase for driving the motor in CPU.

• Transfer

The charging voltage,developing voltage and the transfer voltage are controlled by PWM ( Pulse Width Modulation) . The 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 recognition. The resistance value of the transfer roller is changed due to the surrounding environment or the environment of the set, and the voltage value, which changes due to the environments, is changed through AD converter . The voltage value for impressing to the transfer roller is decided by the changed value.

ITEM Description

JAM 0

JAM 1

JAM 2

DUPLEX JAM 1

DUPLEX JAM2

- After pick up, paper cannot be entered due to paper is not fed.

After pick up, paper entered but it cannot reach to the feed sensor in certain time due to slip, etc.

- After pick up, if the feed sensor is not on, re-pick up. After re-picking up, if the feed sensor is not on after certain time, it is JAM 0.

* 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 cannot pass the feed sensor after a certain time.( The feed sensor cannot be OFF)

- After the leading edge of the paper passes the feed sensor, the paper cannot reach the exit sen sor after certain time.( The exit sensor cannot be ON)

* The paper exists between the feed sensor and he exit sensor

- After the trailing edge of the paper passes the feed sensor, the paper cannot pass the exit sensor after certain time.

- After the trailing edge of the paper passes the exit sensor, the leading edge of the paper cannot reach the duplex sensor after certain time.

- After the leading edge of the paper passes the duplex sensor, the leading edge of the paper can not reach the feed sensor after certain time.

Summary of Product

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• Fusing

The temperature change of the heat roller’s surface is changed to the resistance value through the thermistor. By converting the voltage value, which impressed to the resistance, to the digital value through the AD converter, the temperature is decided. The AC power is controller by comparing the target temperature to the value from the thermistor. If the value from the thermistor is out of controlling range while controlling the fusing,the error stated in the below table occurs.

• Lamp Method

=>This can be changed in the future.

• LSU

The LSU is consisted of the LD ( Laser Diode) and the polygon motor control. When the printing signal occurs, it turns on the LD and drives the polygon motor. When the detector detects the beam, Hsync occurs. When the polygon motor speed becomes strady , Lready occurs. If two conditions are satisfied, the status are not satisfied, the error shown in below occurs.

Error Description LCD Display

Open Heat Error When warming up, it has been lower than 60 over 35 seconds Engine Fuser Error Low heat Error - Standby Engine Low Heat Error

It has been lower than 130 over 10 seconds

- Printing Up to 2 consecutive pages :

It has been lower than 155 over 7 seconds.

From 3 consecutive pages :

It has been 25 lower than the fixed fusing temperature over 7 seconds.

Over Heat Error It has been higher than 230 over 10 seconds

Engine Over Heat Error

Error Type Description LCD Display

Polygon Motor Error Whenthe polygon motor speed doesn’t become steady LSU not Ready Hsync Error The polygon motor speed is steady but the Hsync is not generated HSYNC Erorr

Disassembly and Reassembly

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Samsung Electronics

5. Disassembly and Reassembly

5.1 General Precautions on Disassembly

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 print cartridge before you disassemble parts.

3. Unplug the power cord.

4. Use a flat 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.

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Samsung Electronics

5.2 Transfer Roller

1. Open the Open Cover. 2. Hold the lever at both ends of the roller, then remove the roller.

* Do not grab the Transfer Roller shown in picture (A).

It may cause a malfunction due to a foreign object.

* Hold the both side of the Transfer Roller shown in picture (B) when replacing it.

Transfer Roller

(A) (B)

Transfer Roller

Holder

Open Cover

Disassembly and Reassembly

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Samsung Electronics

5.3 MPF Ass’y

1. Open the MPF Ass'y.

2. Remove two springs from the Knock Up Plate Ass'y.

3. Remove the Tray Link from the MP Cover.

4. Push the MP Cover and remove it, as shown below .

Tray Link

MPF Ass’y

MP Cover

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Samsung Electronics

5.4 Holder Pad Ass'y

1. Before you remove the Holder Pad Ass'y, you should

remove : -MPFAss'y (Refer to the5.3)

2. Unplug the connector and remove the three screws,

as shown below.

3. Remove the Photo Interrupter and the MPActuator, as shown below.

5. Remove MP Cover in the direction of arrow, as shown below.

* NOTICE : Do not separate the spring from the MP Pick Up

Rack for convenience of assembling. Locate the hook section of the spring that is connected to the Knock Up Plate Ass'y as shown in the outside for convenience of assembling.

Tray Link

Knock Up Plate Ass’y

MP Pick Up Rack

Friction Pad

MP Actuator

Holder Pad Ass’y

Disassembly and Reassembly

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Samsung Electronics

5.5 Retard Ass'y

1. Remove the Roller Ass'y, as shown below.

*NOTICE : When you reassemble the Retard Roller Ass'y

Make sure that the let and of the Retard Roller fits into the Retard Shaft.

2. Releasse the lock as shown below and take out the retard Ass’y.

Retard Ass’y

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Samsung Electronics

5.6 Feed2 Idle Unit

1. Before you remove the Feed2 Idle Unit, you should remove :

- Holder Pad Ass'y (Refer to the 5.4)

2. Remove four screws. Then lift the Idle Unit, as shown below.

Feed2 Idle Unit

Disassembly and Reassembly

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Samsung Electronics

5.7 Cover Right

1. Pull the Cassette out of the printer.

2. Remove the Cover Dummy and Cover Control Box.

3. Remove two screws and take out the right side, as shown below.

Cassette

Cover Right

Cover Control Box

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Samsung Electronics

5.8 Main PBA

1. Before you remove the Main PBA, you should remove: - Cover Right (Refer to the 5.7)

2. Unplug the all Connectors, as shown below.

3. The Connectors are located, as shown below.

4. Remove two screws and take out the Dummy Bracket.

5. Remove six screws and take out the Main PBA.

Duplex

SMPS/HVPS PBA

PTL

Cover Open

Thermistor

LSU

Toner Sensor

DEVE Motor

DPX_SOL

Key Panel

HDD(Optional)

Network Card

Main Motor

Exit Sensor

Connector PBA

Memory(Optional)

USB Port

P1284 Port

SCF

Key Panel

Dummy Bracket

Main PBA

Disassembly and Reassembly

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Samsung Electronics

5.9 Main Drive Ass'y

1. Before you remove the Main Drive Ass'y, you should remove : - Cover Right (Refer to the 5.7)

2. Unplug the two Connectors from the Main Motor Ass'y and the Connector PBA.

3. Remove the E-ring and take out the Clutch.

4. Remove six screws and take out the Main Drive Ass'y .

5. When separating the Main Motor Ass'y , disconnect the Connector from the Main Motor Ass'y , remove four screws, and then remove the Main Motor Ass'y.

Connector PBA

Main Drive Ass’y

Clutch

E-Ring

Main Motor Ass’y

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Samsung Electronics

5.10 DEVE Drive Ass'y

1. Before you remove the DEVE Drive Ass'y, you should remove : - Cover Right (Refer to the 5.7)

2. Unplug the Connector from the DEVE Motor Ass'y.

3. Remove four screws and take out the DEVE Drive Ass'y .

4. When separating the DEVE Motor Ass'y, disconnect the Connector from the DEVE Motor Ass'y, remove four screws, and then remove the DEVE Motor Ass'y.

DEVE Drive Ass’y

DEVE Motor Ass’y

Disassembly and Reassembly

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Samsung Electronics

5.11 Connector PBA

1. Before you remove the Connector PBA, you should remove : - Cover Right (Refer to the 5.7)

2. Unplug the all Connectors from the Connector PBA and take it out.

3. The Connectors are located, as shown below.

Connector PBA

MP Solenoid

Cassette Open S/W

Main Solenoid

Main PBA

Main Clutch

MP Empty

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5.12 Solenoid

1. Before you remove the Solenoid, you should remove:

- Cover Right (Refer to the 5.7)

- Main Drive Ass'y (Refer to the 5.9)

2. Unplug the MP Solenoid Harness and the Main Solenoid Harness from the Connector PBA.

3. Remove one screws and take out the MP Solenoid.

4. Remove one screws and take out the Main Solenoid.

*NOTICE : It is not necessary to disassemble the Main Drive

Ass'y to remove the MP Solenoid.

MP Solenoid

Main Solenoid

MP Solenoid

Connector PBA

Main Solenoid

Disassembly and Reassembly

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5.13 Rear Cover

1. Open the Rear Cover, and then take out the Stopper . 2. Remove the Rear Cover in the direction of arrow

ie Stopper

Rear Cover

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Samsung Electronics

5.14 Cover Left

1. Pull the Cassette out of the printer.

2. Remove two screws and take out the left side.

3. Take out the Cover Left.

Cassette

Cover-Left

Disassembly and Reassembly

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5.15 Top Cover

1. Before you remove the Top Cover, you should remove:

- Rear Cover (Refer to the 5.14)

- Cover Right (Refer to the 5.7)

- Cover Left (Refer to the 5.13)

2. Open the MPF Ass'y, the Rear Cover, the Open Cover.

3. Unplug the two Connectors after you remove the three screws from the Main PBA.

4. Unlatch both ends of the T op Cover .

5. Unlatch the hook and take out the Top Cover .

Open Cover

MPF Ass’y

Key Panel

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Samsung Electronics

6. Remove six screws and then take out the LCD Panel and the Key Panel.

LCD Panel

Key Panel

5.16 Open Cover

1. Before you remove the Open Cover, you should remove:

- Top Cover (Refer to the 5.15)

2. Remove two screws and take out the Stopper.

3. Take out the Open Cover, as shown below.

Stopper

Open Cover

Disassembly and Reassembly

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5.17 Inner Cover

1. Before you remove the Inner Cover, you should remove:

-MPFAss'y (Refer to the5.3)

- Top Cover (Refer to the 5.15)

2. Remove two screws and take out the Inner Cover.

Inner Cover

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Samsung Electronics

5.18 Fuser Ass'y

1. Before you remove the Fuser Ass'y, you should remove:

- Rear Cover (Refer to the 5.14)

2. Pull the Locking Lever. Then take out the Fuser Ass'y, as shown below.

3. Remove two screws and take the Thermostat out of the Fuser Ass'y.

4. Remove two screws securing the Electrode L, R and remove it, as shown below.

5. Remove two screws securing the Fuser Upper Unit and remove it, as shown below.

Thrmistor Connector

Fuser Ass’y

Harness L

Bush

Electrode

Harness R

Thermostat

Fuser Upper Unit

Fuser Lower Unit

Disassembly and Reassembly

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6. Remove two screws securing the Release Lever L,R and remove it, as shown below.

7. Remove two screws and take out the Gear Bracket.

8. Take out the Heat Roller Ass'y, as shown below.

9. Remove the screw securing the Thermistor and remove it, as shown below.

Gear Bracket

Release Lever L

Pressure Roller

Cover-Fuser Lower

Release Lever R

Cover-Fuser Upper

Bearing

Heat Roller Ass’y

Fuser Gear

Thermistor

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Samsung Electronics

5.19 Duplex Solenoid Ass'y

1. Before you remove the Exit Solenoid Ass'y, you should remove:

- Top Cover (Refer to the 5.15)

2. Unplug the Duplex Solenoid Harness from the Main PBA.

3. Remove three screws and take out the Exit Solenoid Ass'y .

4. Remove spring pin and remove two screws and take out the Exit Solenoid.

Duplex Solenoid

Spring pin

Duplex Solenoid

Ass’y

Disassembly and Reassembly

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Samsung Electronics

5.20 Exit Roller

1. Before you remove the Exit Roller, you should remove:

- Top Cover (Refer to the 5.15)

2. Take out the Actuator.

3. Remove the Exit Roller and Bearing, as shown below.

4. Release the Exit Gear, as shown below.

5. Remove the Duplex Exit Roller as same method.

6. Release the Duplex Exit Gear, as shown below.

Exit Gear

Bearing

Actuator

Duplex Exit Roller

Bearing

Exit Roller

Rack-Exit Roller

Bearing

Holder

Bearing

Duplex Exit Gear

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Samsung Electronics

1. Before you remove the LSU, you should remove:

- Rear Cover (Refer to the 5.14)

- Cover Right (Refer to the 5.7)

- Cover Left (Refer to the 5.13)

- Top Cover (Refer to the 5.15)

2. Remove the Cover-Frame Exit and unplug the

Connector from the Main PBA, as shown below.

3. Remove three screws and take out the LSU.

Cover Frame Exit

LSU

5.21 LSU

LSU

Disassembly and Reassembly

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Samsung Electronics

5.22 DC Fan

1. Before you remove the DC Fan, you should remove:

- Cover Right (Refer to the 5.7)

- Cover Left (Refer to the 5.13)

- Cover Rear (Refer to the 5.14)

2. Unplug the two Connectors from the Toner Sensor PBA.

3. Remove the screw for taking out the Stopper , and then take out the DC Fan.

Toner Sensor PBA

Out Full

DC Fan

Stopper

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Samsung Electronics

5.23 Toner Sensor PBA

1. Before you remove the LSU, you should remove:

- Top Cover (Refer to the 5.15)

- LSU (Refer to the 5.21)

2. Unplug the all Connectors from the Toner Sensor PBA.

3. Remove two screws and take out the Toner Sensor PBA.

4. Remove the screw securing the Cover Open PBA and remove it. Then unplug the Connector from the Main PBA, as shown below.

5. Remove three screws and take out the LSU Lower Cover.

Cover Open PBA

Harness Cover

Cover Open

Toner Sensor PBA

HV Small Spring

Toner Sensor PBA

LSU Lower Cover

Disassembly and Reassembly

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Samsung Electronics

5.24 REGI Ass'y

1. Before you remove the REGI Ass'y , you should remove:

- Top Cover (Refer to the 5.15)

2. Unplug the Harness and remove four screws, as shown below.

3. Release the lock as shown below and lift up the Gear Cap.

4. Take out the REGI Ass'y, as shown below.

5. Unplug the Harness, remove the screw and take out the PTL PBA.

REGI Ass’y

PTL Upper

Terminal

PTL PBA

Gear Cap

PTL PBA

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Samsung Electronics

5.25 MP Pick Up Ass'y

1. Before you remove the MP Pick Up Ass'y, you should remove:

- MPFAss'y (Refer to the5.3)

- Main Drive Ass'y (Refer to the 5.9)

- Top Cover (Refer to the 5.15)

- Inner Cover (Refer to the 5.17)

2. First of all remove two screws. Lift up the MP Pick Up Shaft for taking out the MP Pick Up Rack.

3. Remove the locking equipment rotate the Bearing in the direction of arrow.

4. Remove the screw securing the Bracket and remove the Gear Ass'y, as shown below.

5. Slide the Cam to the right by pulling on the MP Pick Up Shaft, as shown below.

Gear ass’y

Bearing

Bracket

MP Pick Up Rack

Bearing

Idle-Cam

Disassembly and Reassembly

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Samsung Electronics

6. First lift the left side of the Shaft and then remove the Shaft.

7. Push the Idle toward the ends of Shaft then take out the Housing, as shown below.

Idle

Housing

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Samsung Electronics

5.26 Pick Up & Feed2 Assy

1. Before you remove the Pick Up Ass'y, you should remove:

- Main Drive Ass'y (Refer to the 5.9)

- Right Cover (Refer to the 5.7)

2. Remove the Gear-Pick Up Cam, as shown below.

3. Remove the locking equipment rotate the Bearing in the direction of arrow, as shown below.

4. Release the Pick Up Gear and remove the locking equipment rotate the Bearing in the direction of arrow, as shown below.

5. Remove four screws securing the Bottom Cross Bar and remove it.

Bearing

Feed2 Gear

Gear-Pick Up Cam

Bearing

Retard Idle Gear

Battom Cross Bar

Disassembly and Reassembly

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Samsung Electronics

6. Remove the Actuator as shown below .

7. Remove four screws securing the Guide-P-Front. Then take out the Pick Up Unit, as shown below.

8. Remove two screws securing the Guide-M-Support and remove it.

9. Remove the Feed1 Ass'y, as shown below.

10. Remove the Feed2 Ass'y, as shown below.

Guide-M-Support

Guide-P-Front

Actuator

Bushing Feed

Guide-M-Support

Pick Up Unit

Pickup Roller Ass’y

Bearing

E-ring

Shaft

Ground-P-Pickup

Feed1 Roller Ass’y

Bearing

Guide-M-Support

Shaft

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Samsung Electronics

1 1. Remove four screws securing the Feed2 Unit and

remove it, as shown below.

12. Remove the Roller Unit, as shown below.

Pick Up Frame

Roller Unit

Feed2 Unit

Disassembly and Reassembly

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5.27 Engine Shield

1. Remove the Guide-P-Front.(Refer to the 5.16.7)

2. Remove six screws and slightly lift the Engine Shield, as shown below.

3. Remove the Duplex Guide L, R, as shown below.

4. Unplug the all Connectors from the Engine PBA. Then take out the Engine Shield Ass'y .

5. Remove four screws and take out the Engine PBA out of the Shield.

Engine Shield Ass’y

Guide-Duplex L

Guide-Duplex R

Engine PBA

Shield

Alignment & Adjustments

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Samsung Electronics

6. Alignment and Adjustments

This chapter describes the main functions for service, such as the product maintenance method, the test output related to maintenance and repair, DCU using method, Jam removing method, and so on. It includes the contents of manual.

6.1 How to use EDC (Engine Diagnostic Control) Mode

6.1.1 EDC Setup

EDC(Engine Diagnostic Control, EDC will be used below) is considered to test and check whether each functions of machinery and h/w module are normal or not. All of the test function are able to be controlled by the keys and LCD window on the panel without any other kits. It’s developed for related engineers, not for users.

Press ’OK’key & Power On

Diagnostic Mode Press Menu Key

"MENU" key

[Main Menu] "OK" key

Option Interface

[Function] Tray3 Interface

Tray3 Interface "OK" key Pass (Fail):Vx.x.x

"Arrow" key

"CANCEL" key

"Arrow" key

[Function] Duplex Interface

Pass (Fail):Vx.x.x

Duplex Interface "OK" key

[Main Menu] "OK" key

Test Pattern

[Function]

Simplex Printing

Test : Simplex? "OK" key "OK" key

"Arrow" key

[Function]

Duplex Printing

Test : Duplex? "OK" key "OK" key

Printing...[PageNum]

Engine Diagnostic Control UI Flow Chart

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Samsung Electronics

"CANCEL" key

"OK" or "CANCEL" key

"CANCEL" key

[Main Menu] "OK" key Motor & Fan

[Function] Main Motor

Main Motor "OK" key Running Test On/Off

"Arrow" key

[Function] Dev. Motor

Dev. Motor "OK" key Running Test On/Off

[Function] Laser Motor

Laser Motor "OK" key Running Test On/Off

[Function] Duplex Motor

Duplex Motor "OK" key Running Test On/Off

[Function] Tray3 Motor

Tray3 Motor "OK" key Running Test On/Off

[Function] Main Fan Fan-Main "OK" key Running Test On/Off

[Function] SMPS Fan Fan-Smps "OK" key Running Test On/Off

[Function] Duplex Fan

Fan-Duplex "OK" key Running Test On/Off

[Main Menu] "OK" key

Solenoid/Clutch

[Function] Tray1 Solenoid

ON/OFF

Tray1 Solenoid "OK" key

"Arrow" key

[Function] Tray2 Solenoid

ON/OFF

Tray2 Solenoid "OK" key

[Function] Tray3 Solenoid

ON/OFF

Tray3 Solenoid "OK" key

[Function] Regi. Clutch

ON/OFF

Regi. Clutch "OK" key

[Function] Duplex Solenoid

ON/OFF

Duplex Solenoid "OK" key

[Function] Tray3 Clutch

ON/OFF

Tray3 Clutch "OK" key

Alignment & Adjustments

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Samsung Electronics

[Main Menu] "OK" key

Sensors

[Function] T2 Paper : Letter

Paper Size Sensor "OK" key T3 Paper : A4

"Arrow" key

[Function] T1 Paper Sensor

Tray1 NP Sensor "OK" key With (W/O Paper)

[Function] T2 Paper Sensor

Tray2 NP Sensor "OK" key With (W/O Paper)

[Function] T3 Paper Sensor

Tray3 NP Sensor "OK" key With (W/O Paper)

[Function] Duplex Sensor

Duplex Sensor "OK" key With (W/O Paper)

[Function] Cover Sensor

Cover Open Sensor "OK" key Opened(Closed)

[Function] Feed Sensor

Feed Sensor "OK" key With (W/O Paper)

[Function] Exit Sensor

Exit Sensor "OK" key With (W/O Paper)

[Function] Out Bin

Full(not Full)

Output Sensor "OK" key

[Main Menu] "OK" key

HVPS

[Function] Dev Bias DC

Dev Bias DC "OK" key ON (OFF)

"Arrow" key

[Function] Dev Bias AC

Dev Bias AC "OK" key ON (OFF)

[Function] Charge Roll Volt

Charge Roll Volt "OK" key ON (OFF)

ON (OFF)

[Function] Transfer Roll(+)

Transfer Roll(+) "OK" key

"CANCEL" key

[Function] Fuser Door Sensor

Opened (Closed)

Fuser Door Sensor "OK" key

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Samsung Electronics

"CANCEL" key

ON (OFF)

[Function] Transfer Roll(-)

Transfer Roll(-) "OK" key

[Function] Pre Trans. Lamp

Pre Trans. Lamp "OK" key ON (OFF)

[Main Menu]

Laser Scanning

"OK" key

[Function] Laser Diode 0

Laser Diode 0 "OK" key ON (OFF)

"Arrow" key

[Function] Laser Diode 1

Laser Diode 1 "OK" key ON (OFF)

[Function] L Motor & Ready

L Motor & Ready "OK" key Pass (Fail)

[Main Menu] "OK" key

Fuser

[Function] Fuser Temp.

"Arrow" key Fuser Control "OK" key T:170, C:xxx

[Main Menu] "OK" key

OPC Cycle

[Function] Total OPC Cycle

"Arrow" key Read OPC Cycle "OK" key xxxx

[Main Menu]

Option Interface

Alignment & Adjustments

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Samsung Electronics

6.1.2 Entrance method for EDC

In order to enter the “EDC” mode, the entering method should be special because this mode is developed for the related engineers, not for end users.

- Entering the mode, the message, “Diagnostic Mode (Top Line)” is displayed.

- In this mode, an operator should press the ‘Menu’ Key to search each function he would like to test.

• Usage

1. Checking whether printer is powered off or not.

2. Pressing the ‘OK’key and turn on the power.

3. Continue to press the button until the message “Diagnostic Mode” is displayed.

4. Wait until the message “Press Menu key” is displayed. And then when the message is displayed, press the ‘Menu’ key.

5. Ausage method for a function you would like to test is following.

6.1.3 Interface (Options)

This function is to check a communication state between the main controller and the option controller.

• Usage

1. Press the Arrow Keys ( / ) until finding [Main Menu]/ Option Interface message on the panel.

2. Press the OK Key for executing this function, when it is found.

3. Searching the sub function for testing by Arrow Key.

4. When the desired function is found, press the OK key to test.

5. The sub function is following.

- [Function]/MANUAL TRAY Interface

- [Function]/Duplex Interface

• Function

* The procedure and content above can be changed according to the situation.

Function Name Description Display(LCD) Remarks

Optional Tray

Interface

After it is in the correct mode, a message is displayed on the panel. If the I/F is normal, Pass message will be displayed and abnormal, Fail displayed.

Pass (Fail): x.x.x

Tray3

Xs are

version.

Duplex

Interface

After it is in the correct mode, a message is displayed on the panel. If the I/F is normal, Pass message will be displayed and abnormal, Fail displayed.

Duplex Interface Pass

(Fail):x.x.x

Xs are

version.

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Samsung Electronics

6.1.4 Test pattern and paper path

- This function is to check a total print process state for engine side.

- In the EDC mode, a test pattern can be printed. While the printing job is processing, a location of a paper is continuously displayed on LCD.

• Usage

1. Press the Arrow Keys ( / ) until finding [Main Menu]/ Print Pattern message on the panel.

2. Press the OK Key , when it is found.

3. Searching the sub function for testing by Arrow key

4. When the desired function is found, press the OK key to test.

5. The sub function is following.

- [Function]/Simplex Print

- [Function]/Duplex Print

• Function

If printing the test image, the printer continues to print the test image until pressing the stop button.

* The procedure and content above can be changed according to the situation.

6.1.5 Motor and Fan

These functions are to check a current status (normal or not) of the motors and the fans.

• Usage

1. Press the

Arrow Keys ( / ) until finding [Main Menu]/ Motor/ Fan at main menu mode.

2. Press the

OK key, when it is found.

3. Searching the sub function for testing by Arrow key

4. Press the OK key, when it is found.

5. Press the OK key for execution or the Cancel key for stop for the selected sub function.

6. The sub function is following.

- [Function]/Main Motor

- [Function]/Dev. Motor

- [Function]/Laser Motor

- [Function]/Duplex Motor

Function Name Description Display(LCD) Remarks

Simplex Print When the operator selects this mode, the page is

printed out by simplex mode.

Simplex Print <Example>

Simplex Print

Duplex Print When the operator selects this mode, the page is

printed out by duplex mode.

Duplex Print <Example>

Duplex Print

Alignment & Adjustments

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Samsung Electronics

- [Function]/MANUAL TRAY Motor

- [Function]/Main Fan

- [Function]/Cru Fan

- [Function]/SMPS Fan

- [Function]/Duplex Fan

• Function

* The procedure and content above can be changed according to the situation.

Function Name Description Display(LCD) Remarks

Main Motor When the operator executes this function by pressing

OK key , the main motor is running, and it is stopped

when Cancel key is pressed.

Main Motor

Running Test On/Off

Dev Motor When the operator executes this function by pressing

OK key , the Dev motor is running, and it is stopped

when Cancel key is pressed.

Dev Motor

Running Test On/Off

Laser Motor The laser motor function processes just like the main

motor function.

Laser Motor Running

Test On/Off

Duplex Motor The Duplex motor function processes just like the

main motor function.

Duplex Motor

Running Test On/Off

Optional Tray Motor

The MANUAL TRAY motor function processes just like the main motor function.a When a MANUAL TRAYis not installed, this function is not processed and Tray3 Not Installed is shown.

Tray3

Motor Running T est

On/Off

Main Fan When the operator executes this function by pressing

OK key , the main fan is running, and it is stopped

when Cancel key is pressed.

Main Fan

Running Test On/Off

SMPS Fan When the operator executes this function by pressing

OK key , the SMPS fan is running, and it is stopped

when Cancel key is pressed.

Smps Fan

Running Test On/Off

Duplex. Fan The duplex-fan function processes just like the fan-

main function.

Duplex Fan

Running Test On/Off

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Samsung Electronics

6.1.6 Solenoid and Clutch

These functions are to check a current state (normal or not) of the solenoids and clutches.

• Usage

1. Press the Arrow Keys ( / ) until finding [Main Menu]/ Solenoid/Clutch message on the panel.

2. Press the OK Key , when it is found. 3 Searching the sub function for testing by Arrow key

4. Press the OK key, when it is found.

5. Press the OK key for execution or the Cancel key for stop for the selected sub function.

6. The sub function is following.

- [Function]/Tray1 Solenoid

- [Function]/MP Tray Solenoid

- [Function]/MANUAL TRAYSolenoid

- [Function]/Regi. Clutch

- [Function]/ Duplex Solenoid

- [Function]/ MANUAL TRAYClutch

• Function

* The procedure and content above can be changed according to the situation.

Function Name Description Display(LCD) Remarks

Tray1 Solenoid When the operator executes this function, the Tray1

Solenoid is turned on for 200ms, and then it is automatically stopped.

Tray1 Solenoid

ON/OFF

MP Tray Solenoid

When the operator executes this function, the MP Tray Solenoid is turned on for 200ms, and then it is automatically stopped.

MP Tray Solenoid

ON/OFF

Optional Tray Solenoid

When the operator executes this function, the MANUAL TRAYsolenoid is turned on for 200ms, and then it is automatically stopped. a When the MANUALTRAY is not installed, this function is not processed and

Tray3 Not installed is shown

Tray3

Solenoid ON/OFF

Regi. Clutch When the operator executes this function, the Regi

Clutch is turned on for 200ms, and then it is automatically stopped.

Regi. Clutch ON/OFF

Duplex Solenoid When the operator executes this function, the Duplex

Solenoid is turned on for 200ms, and then it is automatically stopped.

Duplex Solenoid

ON/OFF

Optional Tray Clutch

When the operator executes this function, the Optional Tray Clutch is turned on for 200ms, and then it is automatically stopped.

Tray3

Clutch ON/OFF

Alignment & Adjustments

Service Manual

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Samsung Electronics

6.1.7 Sensors

These Functions are to check a current state (normal or not) of the Sensors.

• Usage

Paper Size Sensor

1. Press the Arrow Keys ( / ) until finding [Main Menu]/ Sensors message on the panel.

2. Press the OK Key , when it is found.

3. Press the Arrow keys until finding [Function]/ Paper Size Sensor .

4. Press the OK Key , when it is found.

5. Pull out a tray (2 or 3, not 1) you would like to test.

6. Check the message, MPTray: Out (MANUAL TRAY: Empty/Out) is displayed.

7. Fill the tray with one or more papers.

8. Put the tray back.

9. Check the message on the LCD window. (The top line for MP Tray and the bottom line for MANUAL TRAY)

10. Compare the paper message on the window with the real paper size.

The other sensors

1. Press the Arrow Keys ( / ) until finding [Main Menu]/ Sensors message on the panel.

2. Press the OK Key for executing this function, when it is found.

3. Searching the sub function for testing by Arrow key

4. Press the OK key, when it is found.

5. The sub function is following.

- [Function]/Tray1 Paper Sensor

- [Function]/MP Tray Paper Sensor

- [Function]/Manual Tray Paper Sensor

- [Function]/ Duplex Sensor

- [Function]/ Cover Sensor

- [Function]/ Feed Sensor

- [Function]/ Exit Sensor

- [Function]/ Output Bin Sensor

- [Function]/ MP Tray Out Sensor

- [Function]/ Manual Tray Out Sensor

- [Function]/Fuser Door Sensor

6. Check the message that is displayed on the LCD window for the state of each sensor as touching the sensor s actuator.

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Samsung Electronics

• Function

Paper Size Sensor

The other sensors

Sensor Description Example Remarks

Message Real Paper

Paper Size Sensor

After a tray is filled with papers, confirm the paper size and compare it with the real size.

MP Tray: Letter Manual Tray: LEGAL

Letter LEGAL

Sensor Description Display (LCD) Remarks

Before touching After touching

Tray1 Paper Sensor

After the tray 1 is pulled out, touch the sensor and confirm the message is changed or not.

Tray1 Paper Sensor W/Out Paper

Tray1 Paper Sensor With Paper

MP Tray Paper Sensor

After the MP Tray is pulled out, touch the sensor and confirm the message is changed or not.

MP Tray Paper SensorW/Out Paper

MP Tray Paper SensorWith Paper

Duplex Sensor

After the back cover is opened, push a paper into the duplex path and confirm the message is changed or not.

Duplex Sensor W/Out Paper

Duplex Sensor With Paper

Cover Sensor

After the cover is open, touch the sensor and confirm the message is changed or not.

Cover Sensor Opened

Cover Sensor Closed

Feed Sensor

After the cover is open and the toner cartridge is out, touch the sensor and confirm the message is changed or not.

Feed Sensor W/Out Paper

Feed Sensor With Paper

Exit Sensor After the back cover is open, push a paper into

the exit path and confirm the message is changed or not.

Exit Sensor W/Out Paper

Exit Sensor With Paper

Out BinSensor

Touch the sensor in the output Bin and confirm the message changed.

Output Bin Not Full

Output Bin Full

MP Tray Out Sensor

Remove the MP Tray and confirm the message changed.

MP Tray In MP Tray Out

Manual Tray Out Sensor

Remove the MANUAL TRAYand confirm the message changed.

Manual Tray In Manual Tray

Out

* The procedure and content above can be changed according to the situation.

6.1.8 HVPS

These functions are to check whether the control for HVPS is normal or not.

• Usage

1. Press the Arrow Keys ( / ) until finding [Main Menu]/ HVPS message on the panel.

2. Press the OK Key , when it is found.

3. Searching the sub function for testing by Arrow key

4. Press the OK key, when it is found.

5. The sub function is following.

- [Function]/Dev. Bias DC

- [Function]/Dev. Bias AC

- [Function]/Charge Roll Volt

- [Function]/Transfer Roller(+)

- [Function]/Transfer Roller(-)

- [Function]/Pre Trans. Lamp

6. Press the OK Key for executing or the Cancel key for stopping of the sub function.

Alignment & Adjustments

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Samsung Electronics

Sensor Description Display (LCD) Remarks

Before touching After touching

Fuser Door Sensor

After the rear cover is open, touch the fuser door sensor and confirm the message.

Fuser Door Senor Closed

Fuser Door Senor Opened

• Function

* The procedure and content above can be changed according to the situation.

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6-12

Samsung Electronics

Function Name Description Display(LCD) Remarks

Dev Bias DC Dev bias DC is supplied after the execution (link with

OK Button) key is chosen and stops when the Cancel Button is chosen.

Dev Bias DC On / Off

Dev Bias AC Dev bias AC is supplied after the execution (link with

OK button key is chosen and stops when the Cancel button is chosen.

Dev Bias AC On / Off

Charge Roll Voltage

Charge roller voltage is supplied after the execution (Link with OK button) key is chosen and stops when the Cancel button is chosen.

Charge Roll Volt On / Off

Transfer Roller (+)

Transfer positive voltage is supplied after the OK button is chosen and stops when the Cancel button is chosen.

Transfer Roll(+) On / Off[%d]

[%d] is the value of the ADC

Transfer Roll (-) Transfer negative voltage is supplied after the OK but-

ton is chosen and stops when the Cancel button is chosen.

Transfer Roll (-) On / Off

Pre Transfer Lamp

The Pre-Transfer Lamp is on after the OK button is chosen and stops when the Cancel button key is chosen. It is possible to confirm the lamp is on after the cover is opened and the cartridge is removed.

Pre Trans. Lamp On / Off

6.1.9 Laser Scan Unit

These functions are to check a current state (normal or not) of the Laser Scanning Unit.

• Usage

1. Press the Arrow Keys ( / ) until finding [Main Menu]/ Laser Scanning message on the panel.

2. Press the OK Key , when it is found.

3. Searching the sub function for testing by Arrow key

4. Press the OK key, when it is found.

5. The sub function is following.

- [Function]/Laser Diode 0

- [Function]/Laser Diode 1

- [Function]/L Motor & Ready

6. Press the OK Key for executing or the Cancel key for stopping of the sub function.

• Function

* The procedure and content above can be changed according to the situation.

Alignment & Adjustments

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Samsung Electronics

Function Name Description Display(LCD) Remarks

Laser Diode_0

Laser Diode0 On is displayed, when the laser diode is on. On the other case Laser Diode0 Off is displayed.

Laser Diode0 On ( Off )

Laser Diode_1

Laser Diode1 On is displayed, when the laser diode is on. On the other case Laser Diode1 Off is displayed.

Laser Diode1 On ( Off )

L Motor & Ready

When Laser Scanning Unit is ready to print (Laser diode on, Stable polygon motor speed) the message, Laser Ready is displayed. On the other case Laser Error

L Motor & Ready Laser Ready (Laser Error)

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Samsung Electronics

6.1.10 Fuser

This function is to check a current state (normal or not) of the fuser.

• Usage

1. Press the Arrow Keys ( / ) until finding [Main Menu]/ Fuser message on the panel.

2. Press the OK Key , when it is found.

3. Confirm the message, [Function]/ Fuser Temp. .

4. Press the OK Key .

5. Set the temperature with arrow keys. (Default: 170 , Range: 150 -190 )

6. Press the OK Key for executing or the Cancel key for stopping this function.

7. Compare a target temperature with a real temperature.

• Function

* The procedure and content above can be changed according to the situation.

6.1.11 Opc Cycle

-This function is to check a total rotating number of OPC drum as of the entering point. The entering point means the time when the power is on, not the initial point of the OPC Cycle test.

• Usage

1. Press the

Arrow Keys ( / ) until finding [Main Menu]/ OPC cycle message on the panel.

2. Press the OK Key , when it is found.

3. Confirming the

[Function]/ Read OPC cycle message, press the OK key .

4. Press the

Cancel key for stopping this function.

• Function

* The procedure and content above can be changed according to the situation.

Function Name Description Display(LCD) Remarks

Fuser Temp.

When Target Temp is displayed, Input a temperature you would like to set with the arrow keys ( / ) and Press the Ok key . The target temperature and a real temperature will be displayed on the bottom line.(Default T is 170)

Fuser Temp. T: 170, C: XX

Function Name Description Display(LCD) Remarks

Read OPC Cycle

A total rotating number of OPC drum is displayed on the bottom line of LCD window, when the process is on.

Total OPC-Cycle XXXX

Alignment & Adjustments

Service Manual

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Samsung Electronics

6.2 Paper Path

❶ Cassette ❷ Duplex ❸ MPF ❹ Print Cartridge ❺ LSU ❻ Fuser ❼ SMPS & HVPS Board ❽ Duplex Solenoid

Service Manual

Alignment & Adjustments

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Samsung Electronics

• Simplex

1) Apaper is fed from a cassette or MPF by a printing order.

2) The fed paper passes a paper feeding sensor.

- If the sensor does not operate after feeding the paper, the Jam0 occurs.

3) The paper passes a paper exit sensor, and it comes out from a machine.

- If the tailing edge of the paper does not come out from a machine after the leading edge of the paper passes the sensor, then certain time later, a Jam2 occurs.

• Duplex

1) Apaper is fad from a cassette or MPF by a printing order.

2) The fed paper passes a paper feeding sensor.

- If the sensor does not operate after feeding the paper, a Jam0 occurs.

3) The paper that passes a paper exit sensor takes several printing processes, and moves to a paper exit sensor.

- If the sensor does not operate after certain time, a Jam 1 occurs.

4) If the paper does not discharge until the paper passes an exit roller and a Roller-Exit-F/Down, a Jam 2 occurs.

5) The printing paper starts to be printed for duplex only by reversing rotation by an exit motor. The printing paper enters to a machine through an exit roller, and reaches to duplex sensor.

- If the printing paper cannot reach to the duplex sensor after certain time, a duplex Jam 1 occurs.

6) The printing paper that passes the duplex sensor reaches to a feed sensor again and a printing operation is tried over again.

- If the printing paper cannot reach to a feed sensor after certain time later, a duplex Jam 2 occurs.

<Jam 2>

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6.2.1 Clearing Paper Jams

When a paper jam occurs,the display on the control panel shows the message indicating the corresponding location of the paper jam.

6.2.1.1 Tips for A voiding Paper Jams

By selecting the correct paper types, most paper jams can be avoided. If a paper jam occurs, follow the steps outlined in

• Ensure that the adjustable guides are positioned correctly.

• Do not overload the tray . Ensure that the paper is below the paper capacity mark on the right inside of the tray.

• Do not remove the paper from the tray while printing.

• Flex, fan and straighten the paper before loading.

• Do not use creased, damp or highly curled paper.

• Do not mix paper types in the input tray.

• Use only recommended print media.

• Ensure that the recommended print side is facing down when loading paper into the input tray.

6.2.1.2 In the Paper Feed Area(Jam 0)

• In the T ray1

1. Slide out the Tray1 to expose the jammed paper.

2. Remove any misfed paper by pulling it out by the visi ble edge from the tray.Make sure that all of the paper is properly aligned in the tray .

NOTE : If the jammed paper is not invisible or if there is resis-

tance when you pull the paper,remove the tray from the printer and carefully pull the jammed paper free from the printer.

3. Slide the tray back into the printer.

4. Open and close the top cover to resume printing.

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• In the Optional MP Tray

1. Pull the optional MP Tray out of the printer.

2. If you see the jammed paper,remove the paper from the tray.

3. If you cannot find the jammed paper in the MP Tray ,pull the Tray1 half way out of the printer,and remove the paper.

4. Slide the trays back into the printer. Open and close the top cover.Printing can be resumed.

• In the Multi-Purpose Tray

1. Open the Multi-Purpose Tray.

2. Carefully remove the jammed paper from the tray.

3. Open and close the top cover.Printing can be resumed.

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6.2.1.3 Around the Print Cartridge (Jam1)

1. Open and close the top cover,and the jammed paper should exit the printer.

If not,continue to Step 2.

2. Open the top cover and remove the print cartridge.

CAUTION : To prevent damage to the print cartridge,do not

expose it to light for more than a few minutes.Place a piece of paper over the top of the print cartridge to shield it while it is out of the printer.

3. Carefully lift up the guide feed.

4. Gently pull the jammed paper towards you to remove it from the printer .

If the jammed paper is not visible or there is resistance when you pull the paper,go to “In the Paper Exit Area ”.

5. Flip down the guide feed and reinstall the print cartridge.

NOTE : If the print cartridge is difficult to reinstall,make sure

that the guide feed has been flipped back down into position.

6. Close the top cover.Printing can be resumed.

Gu ide Feed

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Samsung Electronics

NOTE

6.2.1.4 In the Paper Exit Area (Jam 2)

1. If a long portion of the paper is visible,pull it straight out. If not,continue to Step 2.

2. Open the rear output tray.

3. Loosen the paper if it is caught in the feed rollers. Then gently pull the paper out.

4. Close the rear output tray.

5 Open and close the top cover .Printing can be resumed.

>> In case the roller of fuser assembly is contaminated, clean it as follows

1. In case for Fuser Cleaning Select as follows: Menu -> Setup -> Maintenance -> Fuser Cleaning

In case for OPC Cleaning

Select as follows: Menu -> Setup -> Maintenance -> OPC Cleaning

>> If contamination is still found, do clean in accordance with above method several times.

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6.2.1.5 In the Duplex Area

• Duplex Jam 1

1. Open the rear output tray. 2. Remove the jammed paper.

3. Close the rear output cover.

4. Open and close the top cover .Printing can be resumed.

• Duplex Jam 2

1. Pull the duplex unit out of the printer . 2. Locate the jammed paper and remove it.

3. Insert the duplex unit into the slot.

4. Open and close the top cover. The printer will resume printing.

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6.3 Sample Pattern

This product has the several sample patterns for maintenance. With the sample patterns, check the existence of the abnormality. The patterns help to regularly maintain the product.

6.3.1 Information Pages

Your printer comes with a set of information pages that helps you solve printing problems and obtain the best results from your printer. You can access these pages from the printer’s front panel.

To print information pages:

1. On the printer’s front panel, press the Menu button, then press the Enter button to select Information.

2. Select Info Pages, then press the Enter button. Slect key( ), tind to intormation menu. Press Enter key, sutch to intormation page. Press Enter key, the printing.

* 3. Select the appropriate information page, then press the Enter button to print.

* If installed The HDD, select press(1~3 times), then display intormation menu.

Note : Print the “Menu Map” to see other information pages available for printing.

6.3.2 Demo Pages

Your printer comes with a set of sample pages which demonstrate different functions. To print sample pages:

1. On the printer’s front panel, press the Menu button, then press the OK button to select Information.

2. Select Demo Pages, then press the OK button.

3. Select the desired sample page, then press the OK button to print.

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6.4 Periodic Defective Image

If the delinquent image regularly occurs in the printed-paper, it is due to delinquent or damaged roller. Refer to the table in below and check the condition of the roller.

No Roller Defective image Typical defect

1 OPC Drum 95 mm white spot on black image or black spot 2 Charge Roller 38 mm black spot 3 Supply Roller 45 mm light or dark horizontal image band 4 Developing Roller 43 mm horizontal image band 5 Transfer Roller 55 mm image ghost 6 Heat Roller 126 mm Black spot and image ghost 7 Pressure Roller 126 mm black spot on the backside

OPC Drum Charge Roller

Supply Roller Developing Roller

Transfer Roller Heat Roller

Pressure Roller Cleaning Roller

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7. Troubleshooting

7.1 The cause and solution of Bad image

7.1.1 Vertical Black Line and Band

• Description

1. Straight thin black vertical line occurs in the printing.

2. Dark black vertical band occur in the printing.

Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer

Check and Cause Solution

1. Deformed Doctor-blade or cleaning-blade, in print cartridge

2. Scratched surface of the charge roller in the print cartridge.

3. Partly depression or deformation on the surface of the transfer roller .

1. If causes 1 and 2 occur in the print cartridge, replace the print cartridge and try to print out.

2. Replace the transfer roller if occurred as No. 3.

7.1.2 Vertical White Line

• Description White vertical voids in the image.

Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer

Check and Cause Solution

1. Foreign matter stuck onto the window of internal lenses of LSU mirror .

2. Foreign matter or toner particles between the print cartridge roller and blade.

(In case the life of the print cartridge has been expired, white lines or light image occur in front of the image.)

3. It may occur when Burr and foreign substances are on the window of the print cartridge frame.

4. If the fuser is defective, voids occur periodically at the top of a black image.

5. It may occur when foreign substances are on the OPC Drum.

6. Partly depression or deformation on the surface of the transfer roller

1. Foreign matter stuck onto the window : Clean the LSU window with recommended cleaner(IPA) Clean the window with a clean cotton swab.

2.. Replace the print cartridge.

3. No 3. : Remove the foreign matter and burr of the exposure window. (print cartridge)

4. No. 4. : Open the front cover and check ribs that corresponds to the position of the voids. Remove if found.

5. If the problems are not solved, replace the print cartridge.

6. Replace the transfer roller if occured as NO.6

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7.1.3 Horizontal Black Band

• Description

1. Dark or blurry horizontal stripes occur in the printing periodically. (They may not occur periodically.)

Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer

Check and Cause Solution

1. Bad contacts of the voltage terminals to print cartridge.

2. The rollers of print cartridge may be

stained.

Charge roller = 38mm Supply roller = 45mm Develop roller = 43mm

Transfer roller = 55mm

1. Clean each voltage terminal of the Charge, Supply, Develop and Transfer roller.

(remove the toner particles and paper particles)

2. Clean the right Gear that has relatively small gap of the teeth in the OPC.

3. If the malfunction persists, replace the print cartridge.

7.1.4 Black/White Spot

• Description

1. Dark or blurry black spots occur periodically in the printing.

2. White spots occur periodically in the printing.

Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer

Check and Cause Solution

1. If dark or blurry black spots occur periodically, the rollers in the print cartridge may be contaminated with foreign matte or paper particles.

( Charge roller : 38 mm interval

OPC drum : 95 mm interval)

2. If faded areas or voids occur in a black image at intervals of 95 mm, or black spots occur elsewhere, the OPC drum surface is damaged.

3. If a black image is partially broken, the transfer voltage is abnormal or the transfer roller's life has expired.

1. Run OPC cleaning Mode Print and run the Self-test 2 or 3 times.

2. In case of 95 mm interval unremovable in 1, cleanly remove foreign substances stuck on the OPC location equivalent to black spots and white spots with a dry duster.

3. The transfer roller guarantees 150,000 sheets printing in normal environment. If the roller's life is expired, replace it.

4. In case of 95 mm interval unremovable in 1, take measures as to replace the

cartridge and try to print out.

5. Clean the inside of the set against the paper particles and foreign matter in order not to cause the trouble.

7.1.5 Light Image

• Description The printed image is light, with no ghost.

Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer

Check and Cause Solution

1. Develop roller is stained when the toner of print cartridge is almost consumed.

2. Ambient temperature is below than 10°C.

3. Bad contact caused by the toner stains between the high voltage terminal in the HVPS and the one in the set.

4. Abnormal output from the HVPS. (Run self-test and check 1~4)

5. Check warranty out.

1. Check if the Toner Save mode is off. Check if the density is light.

2. No 1 : R

eplace the print cartridge and try to

print out.

3. No 2 : Wait 30 minutes after printer is pow-

ered on before you start printing.

4. No3 : Clean up the contaminated area by

the toner.

5. Replace the HVPS if the problems are not

solved by the above four instructions.

6. Replace print cartridge.

7.1.6 Dark Image or a Black Page

• Description The printed image is dark.

Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer

Check and Cause Solution

1. No charge voltage in the engine board.

2. Charge voltage is not turned on due to the bad contacts between power supply in the side of the print cartridge and charge terminal of HVPS.

3. VD0 signal of the Main PBA is Low state.

4. Case back side the cleaning blade of print cartridge.

1. Check the state of the connector which connects the engine board and HVPS.

2. Clean the high voltage charge terminal.

3. Replace the HVPS if not solved by the above direction 1 and 2.

4. Replace the LSU Unit or Main PBA.

5. Replace print cartridge.

Troubleshooting

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7.1.7 Uneven Density

• Description Print density is uneven between left and right.

Check and Cause Solution

1. The pressure force on the left and right springs of the transfer roller is not even, the springs are damaged, the transfer roller is improperly installed, or the transfer roller bushing or holder is damaged.

2. The life of the print cartridge has expired.

3. The toner level is not even on the print cartridge roller due to the bad blade.

1. Replace both the left and right Spring Holder.

2. Occur in the print cartridge gently shake the

cartridge.

3.Replace the

cartridge and try to print

out.

7.1.8 Background

• Description Light dark background appears in whole area of the printing.

Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer

Check and Cause Solution

Does character exist less than 2% coverage per a page, and hasn’t it been used long time? (see the configuration sheet)

Is a recycled print cartridge be used?

Has the life span of the print cartridge ended?

Is the movement(Up and Down) of the transfer roller smooth?

5. Is the HVPS normal?

The

cartridge is basically designed to print 12,000 pages with 5% coverage. If it prints more than 15,000 pages with 2% coverage, a background can occur.

The A/S is not guaranteed if using a recyled the print cartridger.

Replace the print cartridge when the life span of it has been ended.

Clean the bushing part of the transfer roller.

5. If the problem is still not solved, replace the print cartridge.

Troubleshooting

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Samsung Electronics

7.1.9 Ghost (1)

• Description Ghost occurs at 95 mm intervals of the OPC drum in the whole printing.

Digital Printer

95 mm

Check and Cause Solution

1. Bad contacts caused by contamination from toner particles between high voltage terminal in the main body and the electrode of the

cartridge.

2. Bad contacts caused by contamination from toner particles between high voltage terminal in the main body and the one in the HVPS board.

3. The life of

cartridge is expired.

4. Transfer roller lifetime(150,000 sheets) has expired.

5. Abnormal low temperature(below 10°C).

6. Damaged cleaning blade in the

cartridge.

1. Clean the terminals when contaminated by toner particles.

2. Occur in the

cartridge, replace the

cartridge and try to print out.

3. Replace the engine board if not solved by the above directions 1-2.

4. If not solved by the direction 3, check the transfer roller lifetime and replace it.

5. Wait about 1 hour after power on before using printer.

6. Occur in the

cartridge, replace the

cartridge and try to print out.

7.1.10 Ghost (2)

• Description

Ghost occurs at 95 mm intervals of the OPC drum in the whole printing. (When printing on card stock or transparencies using manual feeder)

Digital Printer

95 mm

Check and Cause Solution

When printing on card stock thicker than nor mal paper or transparencies such as OHP, higher transfer voltage is required.

Select Card stoc or OHP Film on paper type menu from the software application and after using returning to the original mode is recommended.

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Samsung Electronics

7.1.11 Ghost (3) : Fuser

• Description Ghost occurs at 126 mm intervals.

Digital Printer

126 mm

Check and Cause Solution

The temperature of the fuser is maintained high.

1. Disassemble the fuser and remove the contaminated toner particles on the roller and clean the foreign matter between Thermistor and Heat roller . (Caution: can be deformed)

7.1.12 Stains on the Face of Page

• Description The background on the face of the printed page is stained.

Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer

Check and Cause Solution

1. Toner leakage due to improperly sealed print cartridge.

2. If the transfer roller is contaminated, stains on the face of page will occur.

1. Replace the

cartridge, and clean to

the toner powder of machine.

2. If the transfer roller is contaminated, run OPC Cleaning Mode Print 2 or 3 times. And perform Self-Test 2 or 3 times to remove contamination.

Troubleshooting

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Samsung Electronics

7.1.13 Stains on Back of Page

• Description The back of the page is stained at 55 or 126 mm intervals.

Digital Printer

55 or 126 mm

Check and Cause Solution

1. 55mm : Transfer roller is contaminated.

2. 126mm : Pressure roller is contaminated.

1. Perform the OPC Cleaning Mode Print 2 or 3 times. Run Self-Test to remove the contamination of the transfer roller.

2. Replace the transfer roller if contaminated severely .

3. Disassemble the fuser and clean the H/R(Heat Roller) and P/R(Pressure roller). And check the area between H/R and Thermistor. If contaminated, clean the area not to be deformed.

7.1.14 Blank Page Print out (1)

• Description Blank page is printed.

Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer

Check and Cause Solution

Bad ground contacts in OPC and/or

cartridge.

Check if

the Ground-OPC

is defective(

set

inside left side).

2. Remove contamination of the terminals of the

cartridge and the unit.

7.1.15 Blank Page Print out (2)

• Description

1. Blank page is printed.

2. One or several blank pages are printed.

3. When the printer turns on, several blank pages print.

Check and Cause Solution

1. Bad ground contacts in OPC and/or

cartridge.

2. Abnormal solenoid.

1. Remove contamination of the terminals of the

cartridge.

2. Perform the engine self test using EDC Mode to

check if the Solenoid is normal.

3. If not solved by the above directions 1-2, Replace the engine board.

4. Turn the power off, delete the data of PC and try printing again.

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Samsung Electronics

7.2 The cause and solution of the bad discharge

7.2.1 Wrong Print Position

• Description Printing begins at wrong position on the paper.

Check and Cause Solution

Wrong sense time caused by defective feed sensor actuator.

Replace the defective actuator

7.2.2 JAM 0

• Description

1. Paper is not exited from the cassette.

2. Jam-0 occurs if the paper feeds into the printer.

Check and Cause Solution

1. Check the Main clutch by using EDC Mode.

2. Check if the pad is loose due to bad sealing of the side-pad.

3. Check the surface of the roller-pickup for foreign matter.

4. If continuous clusters occur, check whether the assembly slot between shaft-pickup and housing-pickup opens or is broken away.

5. If the paper feeds into the printer and Jam 0 occurs, perform EDC Mode to check feed-sensor of the engine board.

1. Replace the Main clutch.

2. Replace the side-pad Assembly Lor R, if necessary.

3. Clean with soft cloth dampened with IPA(Isopropyl Alcohol) or water.

4. Replace the Main PBA and/or Sensor.

Troubleshooting

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Samsung Electronics

7.2.4 JAM 2

• Description

1. Recording paper is jammed in front of or inside the fuser.

2. Recording paper is stuck in the discharge roller and in the fuser just after passing through the Actuator-Feed.

Check and Cause Solution

1. If the paper is completely fed out of the printer, but Jam 2 occurs : Exit sensor is defective.

• After the paper is completely dis-

charged, actuator Exit should return to the original position to shut the photo-sensor. Sometimes it takes longer hour than it should and does not return.

2. If the paper is rolled in the Fuser Roller:

• This occurs when a Guide claw is

broken away or transformed.

• It occurs when the Spring of a Guide

claw is broken away or transformed.

• It occurs when the Heat-Roller or Pressure-Roller is seriously contaminated with the toner .

3. Paper is accordion in the fuser.

1. Check if the exit sensor actuator is defective.

• Check if the actuator exit is deformed

(Check if the lever part is deformed in shape).

• Check whether burrs occur in the

assembly part of the actuator exit or not and if the actuator is smoothly operated.

• Check if foreign matter and wire get

caught in the actuator exit's operation.

2. If the paper is stuck in the fuser : dis-

assemble the fuser and remove the jammed paper, and clean the surface of the pressure roller with dry gauze.

3. Remove the jammed paper after disassembling the fuser : Clean the surface of the pressure roller with dry gauze.

• Remove the toner particles stained

on the rib.

• Check the assemblage and perfor-

mance of the exit.

7.2.3 JAM 1

• Description

1. Recording paper is jammed in front of or inside the fuser.

2. Recording paper is stuck in the discharge roller and in the fuser just after passing through the Actuator-Feed.

Check and Cause Solution

1. If the recording paper is jammed in front of or inside the fuser.

2. If the recording paper is stuck in the discharge roller and the fuser just after passing through the ActuatorFeed, Feed Actuator may be defective.

1. Replace the SMPS or Exit-Sensor.

2. Replace the Main PBA.

3. Reassemble the Actuator-Feed and Spring-Actuator if the movement is bad.

Samsung ML-3560 Service Manual. Parts List

Specifications and Main Features

Frequently Asked Questions

User Manual

SERVICE