Samsung CLP-510, CLP-510N Service manual

SERVICE

SAMSUNG COLOR LASER
PRINTER

CLP-510 Series

CLP-510/510N

Manual

SAMSUNG COLOR LASER PRINTER CONTENTS

1. Precautions

2. Reference Information

3. Specifications

4. Summary of product

5. System Outline

6. Disassembly and Reassembly

7. Alignment and Adjustments

8. Troubleshooting

9. Exploded Views and Parts List

10. Block Diagram

11. Connection Diagram

© Samsung Electronics Co.,Ltd. August 2004

Printed in Korea.

VERSION NO. : 1.00 CODE : JC-0131A

* This Service Manual is a property of Samsung Electronics

Co.,Ltd. Any unauthorized use of Manual can be punished
under applicable International and/or domestic law.

* This service manual is also provided on the web,

the ITSELF system f Samsung Electronics Co., Ltd.

http://itself.sec.samsung.co.kr

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1-1

Precautions

Service Manual

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 GE FFNET .
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 LESPOSIZIONE AL
FASCIO.

PRECAUCION - RADIACION LASER IVISIBLE CUANDO SE ABRE.

EVITAR EXPONERSE AL RAYO.

ADVARSEL. - USYNLIG LASERSTR LNING VED BNING, N R

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

ADVARSEL. - USYNLIG LASERSTR LNING N R DEKSEL

PNES. STIRR IKKE INN I STR LEN.

UNNG EKSPONERING FOR STR LEN.

VARNING - OSYNLIG LASERSTR LNING 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 S TEESEEN.

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Precautions

Service Manual

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 recommend 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.

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Precautions

Service Manual

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. Take care when working with the covers(especially the top cover)
open as light is admitted to the OPC area and can damage the OPC Drum.

- Take care not to scratch the green surface of OPC Drum Unit.
If the green surface of the Drum Cartridge is scratched or touched the print quality will be compromised.

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Precautions

Service Manual

1.2.5 Disregarding this warning may cause bodily injury

(1) Take care - some parts may be hot.

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) Take care not to trap fingers or hair.

Take care when using a printer. It contains many rotating parts. Ensure that fingers, hair, clothing etc. do not
become caught in the mechanism as this could cause injury.

(3) When you move the printer.

This printer weighs 32kg 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 32Kg, 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.

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Precautions

Service Manual

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.

1.4 Super Capacitor or Lithium Battery Precautions

1. Exercise caution when replacing a super capacitor or Lithium battery. There could be a danger of explosion and
subsequent operator injury and/or equipment damage if incorrectly installed.

2. Be sure to replace the battery with the same or equivalent type recommended by the manufacturers.

3. Super capacitor or Lithium batteries contain toxic substances and should not be opened, crushed, or burned for
disposal.

4. Dispose of used batteries according to the manufacturer’s instructions.

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Precautions

Service Manual

MEMO

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Reference Information

Service Manual

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 Tools 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).

• T weezers

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

• Brush

• Software (Driver) installation CD ROM

Install Driver CD

Network S/W CD

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Reference Information

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Service Manual

2.2 Acronyms and Abbreviations

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.

ADC Analog-to-Digital-Conversion
AP Access Point
AC Alternating Current
ASIC Application Specific Integrated

Circuit
ASSY Assembly
BIOS Basic Input Output System
BLDC Motor Brushless DC Motor
CLBP Color Laser Beam Printer
CMOS Complementary Metal Oxide

Semiconductor
CMYK Cyan, Magenta, Yellow, Black
CN Connector
CON Connector
CPU Central Processing Unit
CTD Sensor Color Toner Density Sensor
dB Decibel
dBA A-Weighted decibel
dBm Decibel milliwatt
DC Direct Current
DCU Diagnostic Control Unit
DIMM Dual In-line Memory Module
DPI Dot Per Inch
DRAM Dynamic Random Access Memory
DVM Digital Voltmeter
ECP Enhanced Capability Port
ECU Engine Control Unit
EEPROM Electronically Erasable

Programmable Read Only Memory
EMI Electro Magnetic Interference
EP Electro photographic

EPP Enhanced Parallel Port
F/W Firmware
FCF/FCT First Cassette Feeder/First

Cassette Tray
FISO Front-In, Side-Out
FPOT First Print out Time
GDI Windows Graphic Device Interface
GIF Graphic Interchange Format
GND Ground
HBP Host Based Printing
HDD Hard Disk Drive
HTML Hyper Text Transfer Protocol
HV High Voltage
HVPS High Voltage Power Supply
I/F Interface
I/O Input and Output
lb Pound(s)
IC Integrated Circuit
ICC International Color Consortium
IDE Intelligent Drive Electronics or

Integrated Drive Electronics
IEEE Institute of Electrical and

Electronics Engineers. Inc
IOT Image Output Terminal (Color print-

er, Copier)
IP A Isopropy Alcohol
IPC Inter Process CommunicationEPP

Enhanced parallel Port
IPM Images Per Minute
ITB Image Transfer Belt
LAN local area network
LBP Laser Beam Printer

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Reference Information

Service Manual

LCD Liquid Crystal Display
LED Light Emitting Diode
LSU Laser Scanning Unit
MB Megabyte
MHz Megahertz
MPBF Mean Prints Between Failure
MPF/MPT Multi Purpose Feeder/Multi

Purpose Tray
NIC Network Interface Card
NPC Network Printer Card
NVRAM Nonvolatile Random Access

Memory
OPC Organic Photo Conductor
PBA Printed Board Assembly
PCL Printer Command Language ,

Printer Control Language
PCI Peripheral Component

Interconnect by Intel 1992/6/22, is

a local bus standard developed by

Intel and introduced in April, 1993 :

A60, B60 Pins
PCL5Ce Printer Command Language 5Ce-

Color
PCL6 Printer Command Language 6
PDF Portable Document Format
PDL Page Description Language
Ping Packet internet or Inter-Network

Groper
PPD Postscript Printer Discription
PPM Page Per Minute
PS Post Script
PS3 Post Script Level3
PTL Pre-Transfer Lamp

PWM Pulse Width Moduration
Q’ty Quantity
RAM Random Access Memory
RCP Remote Control Panel
ROM Read Only Memory
SCF/SCT Second Cassette Feeder/Second

Cassette Tray
SMPS Switching Mode Power Supply
SPGP Samsung Printer Graphic

Processor
SPL Samsung Printer Language
SPL-C Samsung Printer Language-Color
Spool Simultaneous Peripheral Operation

Online
SRS Software Requirment Specification
SURF Surface Rapid Fusing
SW Switch
sync Synchronous or Synchronization
T1 ITB
T2 Transfer Roller
TRC Toner Reproduction Curve
PnP Universal Plug and Play
U.I. User Interface
URL Uniform Resource Locator
USB Universal Serial Bus
VCCI Voluntary Control Council for

Interference Information

Technology Equipment
WECA Wireless Ethernet Compatibility

Alliance
Wi-Fi Wireless Fidelity

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

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Reference Information

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Service Manual

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Reference Information

Service Manual

2.4 A4 ISO 19752 Standard Pattern

This test page is reproduced at 70% of the normal A4 size

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Reference Information

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Service Manual

2.5 Wireless LAN

• This product can be used with a wireless LAN, (this is an 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

TM

- 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.

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

TM

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Specifications

Service Manual

3. Specifications

Specifications are correct at the time of printing. Product specifications are subject to change without notice.
See below for product specifications.

3.1 General Specifications

Items Descriptions

Print Method Non-impact Electro-photography
Developing system Non-Magnetic, Mono-Component Developing System
*Print Speed Mono Up to 24 PPM in A4, Up to 25 PPM in Letter size

Color Up to 6 PPM in A4, Up to 6 PPM in Letter size
Resolution Up to 1200 DPI effective output, True 600 X 600dpi
Source of Light Laser diode (LSU : Laser Scanning Unit)
Warm-Up Time More than 99 sec
First Print Time Mono 15 seconds (Ready to 1st page out)

Color 24 seconds (Ready to 1st page out)
Feed Method Cassette , MPT(Multi Purpose Tray), SCT(Second Cassette Tray)
Media Size 76 X 128mm (3 x 5”) to 216 X 356mm (8.5 X 14”)
Media Thickness Cassette : 16 ~24 lb , MPT : 16 ~ 43 lb
Dimension (W X D X H) 510 X 470 X 405 mm
Weight Net 25.5 Kg 56.2Lbs

Gross 32.0 Kg 70.5Lbs
**Acoustic Noise Stand by More than 40 dBA-TBD

Printing More than 48 dBA(Color)-TBD
Power save mode Available, Setting : 5min/10min/15min/30min/45min/60min/120min
Toner save mode Disable
Machine Life Mono : More than 300,000 pages, Color : More than 75,000 pages

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

method, media type, media size and job complexity.
* OHP/Cardstock/Envelope : Half Speed
** Sound Pressure Level, ISO 7779

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Specifications

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Service Manual

3.2 Controller Specification

3.3 Electrical Specification

Items Descriptions

Processor (CPU) Samsung SPGPm (CLOCK SPEED 120Mhz), 32-bit RISC core (ARM 946ES)
Memory FLASH ROM (PROGRAM) : 8MB flash

*RAM : 64MB (Expandable to 320MB : With Option
Option DIMM module : 64/128/256MB
100Pin SDRAM DIMM (Samsung Printer Only)

EEPROM (NVRAM) : 1024bytes
Emulation SPL-Color
Operating System Win 95/98/ME/NT4.0/2000/XP, Various Linux OS including Red Hat, Caldera, Debian,

Mandrake, Slackware, SuSE and Turbo Linux

Interface Parallel : IEEE 1284 Bidirectional (Korea, Russia, Asia only)

- Modes supported : Compatible, Nibble, Byte, ECP

USB (without HUB mode)

- USB 2.0 compliant -12/480 Mbps 1 port

Network Interface

- 10/100 Base TX
10/100 Base TX + 802.11b Wireless LAN

Interface switching Automatic
Interface time-out 5min (Max.)
Font Windows font, PS english font, PCL english font
Color Management ICC ICM V3.4

* Memory Slots : Standard Capacity is

64MB Option Capacity is 320MB (Max)
(100Pin 1 slot, 64MB/128MB/256MB)

Items Descriptions Remarks

Input Voltage Nominal input voltage 200-240 VAC / 100~127VAC

Input voltage range 180-264 VAC/ 90~132VAC
Nominal frequency 50/60 MHz
Frequency tolerance +3Hz

Power Consumption Printing :450W max (with SCF)

Power Save : 35W max

3.4 Environmental Range

Items Operating Storage

Temperature 15~32.5 ˚C(50-90 ˚F) -20~40 ˚C (-4~104 ˚F)
Humidity 20~80%RH 10~80%RH

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Specifications

Service Manual

3.5 Consumable & Maintenance Items

Items Descriptions Remarks

Periodic Replacing Parts Toner Cartridge(Black) initial (3,000 pages@5% coverage) User replace

replacement (7,000 pages@5% coverage)

Toner Cartridge(Cyan) initial (2,000 pages@5% coverage) User replace

replacement (5,000 pages@5% coverage)

Toner Cartridge(Magenta) initial (2,000 pages@5% coverage) User replace

replacement (5,000 pages@5% coverage)

Toner Cartridge(Yellow) initial (2,000 pages@5% coverage) User replace

replacement (5,000 pages@5% coverage)

OPC Unit mono : 50,000 pages User replace

color : 12,500 pages

ITB Unit(T1 Roller) mono : 50,000 pages User replace

color : 12,500 pages
Waste Toner Tank 3,000 images User replace
Fuser Unit simplex : 100,000 page (Mono) Engineer

duplex : 50,000 page
Transfer Roller(T2 Roller) simplex : 50,000 page Engineer

duplex : 25,000 page

Option SCT - Paper capacity : 500sheets

(Second Cassette Tray) - Paper weight : 60 ~ 90 g/m2/ 16 ~ 24 lbs
Network Printing - Ethernet 10/100baseTX + Wireless

- Protocols : TCP/IP, SPX/IPX, Ethertalk, SNMP, HTTP

1.1, DLC/LLC

- 8MB RAM Buffer for faster graphics performance

- 4MB Flash Memory for upgrade

802.11b Wireless LAN - IEEE802.3b support

- speed : 11, 5.5, 2 ,1Mbps

- WEP : 64bit, 128bit

- Operating range : 30m(Indoors) , 100m(Outdoors)

SDRAM DIMM - 64,128MB, 256MB 100Pin SDRAM DIMM(Use Samsung

Part Only)

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Specifications

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Service Manual

3.6 Paper handling Specifications

Paper Paper size 1st Cassette 2nd Cassette MP tray Duplex

A4 210 X 297 mm O O O O
Letter 216 X 279 (8.5 X 11") O O O O
Folio (Legal13") 216 X 330 (8.5 X 13") O O
Legal (Legal14") 216 X 356 (8.5 X14") O O
Executive 184 X 267 (7.25 X10.5") O
Statement 140 X 216(5.5 x8.5") O
ISO B5 176 X 250 O
JIS B5 182 X257 O
A5 148.5 X 210 O
A6 105 X148.5 O
Com-10 Envelope 105 X 241 (4.15 X 9.5") O
Monarch Envelope 98 X191 (3.87 X 7.5") O
DL Envelope 110 X 220(4.33 X 8.66") O
C5 Envelope 162 X 229 (6.38 X 9.01") O
C6 Envelope 114 X 162 (4.49 X 6.38") O
Transparency (OHP) A4 or Letter O
Label paper A4 or Letter O

3.6.2 Input Capacity

3.6.1 input Paper Size

Items Descriptions Remarks

Cassette(FCT) 250 sheets
MP tray Paper 100 sheets

Transparencies 30 sheets
Envelopes 10 sheets
Labels 10 sheets

Option Cassette(SCT) 500 sheets

3.6.3 Output Capacity

Items Descriptions Remarks

Face Down 250 sheets

O : Supported

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Samsung Electronics

Summary of product

Service Manual

4. Summary of Product

This chapter describes the functions and operating principles of the main components.

4.1 System Structure

4.1.1 Main Parts of System

HVPS

Eraser LampEraser Lamp

HVPS

DEV. - Black

DEV. - Yellow

OPC

Pick-up

Roller

DEV. - Magenta

DEV. - Cyan

CASSETTE

LSU

ITB Unit

Feeder

DUPLEX

T2 Roller

Fuser Unit

EXIT Unit

MPF Path

MPFMPT

DEV. - Black

DEV. - Yellow

OPC

Pick-up

Roller

DEV. - Magenta

DEV. - Cyan

SCF

SCT

FCT

LSU

Deve CoverDeve Cover

ITB Unit

Feeder

DUPLEX

T2 Roller

Fuser Unit

EXIT Unit

PTL

PTL

SCF Path

Pick-up

Roller

Pick-up

Roller

Pick-up

Roller

Pick-up

Roller

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Summary of Product

Samsung Electronics

Service Manual

>> Front View

Deve OEM

PBA

Panel PBA

Waster Toner Sensor

Waster Toner Motor

SMPSSMPS

Main DriveMain Drive

Fan Fan

Deve DriveDeve Drive

Deve Drive PBADeve Drive PBA

Duplex Cover

Open S/W

Duplex Cover

Open S/W

Deve Cover

Open S/W

Deve Cover

Open S/W

Main Conrtoller PBAMain Conrtoller PBA

>> Rear View

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Summary of product

Service Manual

1) OPC Unit

Images are created on the OPC unit using an electro-photographic process. The unit consists of:­* OPC Drum
* Waste Toner Ass'y used to collect waste toner remaining on the OPC drum,
* Charge Roller Assy

2) ITB Unit

ITB stands for Image Transfer Belt. An image developed on the OPC Drum is transferred first to the
ITB. This is called the T1 Transfer (Primary Image Transfer).
Images are built up in layers on the ITB.
First the Yellow (Y) colour image is created on the OPC and transferred to the ITB
Next the Magenta (M) colour image is created on the OPC and transferred to the ITB
Followed by the Cyan (C) and Black (K) images.

3) Transfer Roller

Once the complete, full colour, image, has been built up on the ITB the Transfer Roller is used to
transfer the image onto paper. This is called the T2 Transfer (Secondary Image Transfer)

4) FCT (First Cassette Tray)

It stores and automatically feeds print paper.
Pick-up Roller picks up paper, controls drive, feeds paper, removes static electricity, and so on.

> Spec.

* Paper arrange way : Side Registration
* Paper Direction : FISO (Front-in, Side-Out)
* Cassette Type : A4, Ltr
* Paper Discharge : Separation Claw
* Capacity : 250 Sheets (Standard paper 75mg/m? 20lb)
* Paper Size : A4, Letter
* Paper Weight (average) : 60~90g/m2(16~24lbs)
* Paper Type : General Printing Paper
* Additional Function : Paper Empty Sensor

5) SCT (Second Cassette Tray)

This additionally stores and automatically feeds printing paper. Its function is the same as the FCT
(First Cassette Tray)

> Spec.

* Paper arrangement : Side Registration
* Paper Direction : FISO (Front-in, Side-Out)
* Cassette Type : A4, Ltr
* Paper Discharge : Separation Claw
* Capacity : 500 Sheets (Standard paper 75mg/m220lb)
* Paper Size : A4, Letter
* Paper Weight (average) : 60~90g/m2(16~24lbs)
* Paper Type : General Printing Paper
* Additional Function : Paper Empty Sensor

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Summary of Product

Samsung Electronics

Service Manual

6) MPT (Multi Purpose Tray)

The Multi-Purpose Tray not only feeds general printing paper but is also used for many other kinds
of paper such as those paper sizes not supported by the cassette, envelopes, OHP, etc.

> Spec.

* Capacity : Cut Sheet : 100 Sheets (Standard paper 75mg/m220lb)
* OHP : 300 Sheets
* Envelope & Label & Card Stock : 10 Sheets
* Paper Arrangement : Side Registration
* Power : Main Motor (BLDC)
* Driving Management : Solenoid
* Paper Discharge : Friction Pad Method
* Paper Size : Legal, Folio, A4, Letter, Executive, JIS B5, A5, A6
* Paper Weight (Average) : 60~163g/m

2

* Paper Type : General, Label, Post Card, Transparency, Envelope, Card Stock (Tracing

Paper is not served)

* Additional Function : Paper Empty Sensor

7) Feeder

* Paper Arrangement : Side Registration.
* Power : Main Motor (BLDC)
* Paper Management : Solenoid

8) Duplex Unit

The Duplex Unit is used to reverse feed paper when printing on the second side (known as Double
sided or Duplex printing). The Duplex Unit is not an optional extra, it is built-in at manufacturing
time and is integral with the Transfer Roller.

> Spec.

* Power : Main Motor (BLDC)
* Paper Reverse Function: After the front side of the original document is printed, it is transferred

to the duplex unit in order to print the reverse side of original document. The motor drives
the exit roller in the reverse direction to feed the paper back into the machine.

9) Exit Unit

The Exit Unit guides paper that is just about to leave the print engine. Printed-paper is discharged
by the Exit Roller and Kicker into the Output Tray.

> Spec.

* Capacity : 250 sheets (Standard A4, 75g/m2)
* Paper Direction : Face Down
* Exit Drive Roller : It is driven by Main Motor (BLDC), and it rotates clockwise for normal

feed and antic-clockwise when reverse feeding for duplex printing.

* Bin Full Sensor : There is no Bin Full sensor fitted on this model.

10) Toner Cartridge

There are four toner cartridges, each containing a different colour ink : C (Cyan), M (Magenta), Y
(Yellow) , and K (Black).
Each one of these toner cartridge is independent and can be changed independently.

11) Fuser Unit

This unit consists of 2 Heat Lamps, 2 Heat Rollers, 2 Thermostats and a Thermister. It melts and
fuses the toner, transferred by the transfer roller onto the paper, by applying pressure and high
temperature to complete printing job.

12) LSU

This is a core part of LBP. It forms a latent image on the surface of OPC drum using a static
charge.
* Resolution: Real 600 dpi

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Samsung Electronics

Summary of product

Service Manual

13) Main Drive Unit

This motor drives, by way of a gearbox, the OPC unit, ITB unit, feeder unit, fuser unit, exit unit and
duplex unit.

> Spec.

* Power : 20W Max (24V)
* Drives : OPC unit, ITB unit, Fuser, Feeder, Duplex unit, Exit unit

14) DEVE Drive Unit

This motor drives, by way of a gearbox, the toner cartridges and ITB cleaning cam.

> Spec.

* Power : 20W Max (24V)
* Drives : DEV (4 Color)/ITB Cleaning)

15) SMPS (Switching Mode Power Supply)

This power supply uses the AC supply voltage to generate the DC voltages used by the system.
The SMPS has 4 output channels (+3.3V, +5V, +24V, +24VF).
The AC Heater Control Unit that supplies power to the fuser is also located on the SMPS.

16) HVPS (High Voltage Power Supply)

The HVPS creates the high voltages (Charger, Supply, T1, T2, Developer) used for the electro
photographic process. The high voltage is created from the 24V line from the SMPS. High Voltage
output is supplied to the toner cartridge, OPC drum unit, ITB unit, and Transfer roller.

17) Main Controller PBA

The Main controller PBA is very important as it is the heart of printer. It has several major function
blocks.
* CPU and SPGPm Block: This manages the printing order from the host, creates bitmap data for

the engine to print and controls various devices that are needed to operate the printer.
*Engine Control Block: This manages images and controls various kinds of I/O
* Memory Block : The operating system uses this to store video data and printing orders given by host.
* ROM Block : The printer OS and PDL Interpreter are stored here.
* In addition there are USB 2.0 Block, IEEE 1284 Block, Option Block, OPE Panel, etc.

18) DEVE Drive PBA

Each toner cartridge requires the HV Supply only when that colour image is being processed. This
unit takes its HV source from the HVPS and using 4 solenoids selects which cartridge is to receive
the Supply voltage. This section also contains the DEVE motor, DEVE clutch, and DEVE solenoid
drives. These are activated in sequence as required by the printing process.

19) DEVE OEM PBA

This detects new or used toner cartridges and also checks that cartridges are approved parts. If a
toner cartridge is not suitable for the machine an error message is displayed.

20) Waste Toner Ass’y

A cleaner blade on the OPC unit cleans waste toner from the OPC drum after every image is
transferred to the ITB. Once the complete image is transferred from the ITB onto paper the ITB
Cleaning Solenoid activates and a cleaning blade removes waste toner from the ITB. Waste toner
is transferred to the waste toner tank.
The error message "Waste Toner Tank Full/ Not Install" is indicated on the LCD Panel. Replace the
Waste Toner Tank immediately or the printer may be damaged

4-6

Summary of Product

Samsung Electronics

Service Manual

4.1.2 Motor & Fan Layout

Fan

1. Main Motor

2. DEVE Motor

4. Waste Toner Motor

Fan

1. Main Motor

2. DEVE Motor

4. Waste Toner Motor

NO. Name Description

1 Main Motor Drives the OPC unit, ITB unit, feeder unit, fuser unit, exit unit and

duplex unit.

2. DEVE Motor Drives C, M, Y and K toner cartridges and ITB cleaning cam.

3. Fan Forces cold air into the printer and takes out heat from the fuser.

4. Waste Toner Motor Transfers collected waste toner from the OPC drum and ITB to the
waste toner tank. (Refer to front view picture on 4-2 page)

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Samsung Electronics

Summary of product

Service Manual

14.1.3 Clutch & Solenoid Layout

>>Solenoid

Cartridge Solenoid(C, M, Y, K)

Duplex Solenoid

ITB Cleaning

Solenoid

Black Deve

Clutch

Black Deve

Clutch

Yellow Deve Clutch

Magenta Deve Clutch

Cyan Deve Clutch

Cartridge Solenoid(C, K, Y, M)

Yellow Deve Clutch

Magenta Deve Clutch

Cyan Deve Clutch

T2 Home SolenoidT2 Home Solenoid

MP Pick_up

Solenoid

MP Pick_up

Solenoid

Feed Regi

Clutch

Pick_up Solenoid

NO. Name Description

1. C DEVE solenoid Controls the High Voltage supply to the cyan cartridge.

2. K DEVE solenoid Controls the High Voltage supply to the black cartridge.

3. Y DEVE solenoid Controls the High Voltage supply to the yellow cartridge..

4. M DEVE solenoid Controls the High Voltage supply to the magenta cartridge.

5. Pick-up solenoid Controls the pick-up roller drive.

6. MP Pick-up solenoid Controls the MP pick-up roller drive.

7. Duplex solenoid When operating in duplex print mode, this reverses the direction

of paper feeding to feed paper into the duplex unit.

8. T2 Home solenoid This forces the transfer roller into contact with the ITB unit.

9. ITB cleaning solenoid This brings the cleaning blade into contact with the ITB unit

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Summary of Product

Samsung Electronics

Service Manual

>>Clutch

NO. Name Description

1. Yellow DEVE clutch Controls Yellow color toner cartridge drive

2. Magenta DEVE clutch Controls Magenta color toner cartridge drive

3. Cyan DEVE clutch Controls Cyan color toner cartridge drive

4. Black DEVE clutch Controls Black color toner cartridge drive

5. Feed Regi. Clutch Controls the location of picked-up paper

4.1.4 Sensor & Micro S/W Layout

NO. Name Description

1. Paper Empty Sensor(FCT) This sensor detects paper in the first (main) cassette.

2. Paper Empty Sensor(SCT) This sensor detects paper in the second (optional) cassette.

3. Paper Empty Sensor(MPT) This sensor detects paper in the multi-purpose tray.

4. Feed Sensor This sensor must operate within a certain time after paper pick­up otherwise a JAM is detected

5. ITB Home Sensor This detects the position of the image transfer belt, and in
dicates the start location for image writing. It is used to ensure
that all 4 colour images are correctly registered.

6. Waste Toner Sensor This detects whether the waste toner tank is mounted or not and
the amount of waste toner in the tank.

7. Exit Sensor This detects whether printing paper is discharged or not.

8. DEVE Cover Open S/W This detects the open/closed status of the DEVE Cover.

9. Duplex Cover Open S/W This detects the open/closed status of the Duplex Cover.

Note: * ITB Home Sensor is located in the ITB unit. If it develops a fault replace the ITB unit.

* Please, refer to the Chap. 7 Arrangement and Adjustment, "Paper Path diagram", for the location

of the paper empty sensor, feed sensor, and exit sensor.

* Please, refer to page 4-2 for the location of the waste toner sensor, DEVE cover open S/W, and

duplex cover open S/W.

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Samsung Electronics

Summary of product

Service Manual

4.1.5 Main Controller PBA

USB

CN24

CN27

CN28

CN29

CN30

CN31

CN32

CN33

DUPLEX

CN26

T2 HOME

BLDC1

TH1

FUSER_FAN

SMPS

MP_EMPT

MP SOL

FEED

CN25

PICK_UP

CN23

CLT_FEED

CN21

EMPT

CN1

CN16

SCF

CN12

LSU

CN6

OPC KEY

CN5

DEVE_DRIVERDEVE_DRIVER

CN14

LSU SW

CN17

WASTE TONER & EXIT

CN15

TH3

CN4

PANEL

LAN

CN7

HVPS

CN11

PTL & TH4

CN35

SOL_ITB_CLN

CN38

BLDC2

CN37

OEM_CONN

For Test

CN10

ITB

CN9

NIC

Option : NIC

4-10

Summary of Product

Samsung Electronics

Service Manual

RAM

DIMM

SPGPm

Main Control

FLASH MEMORY

OSC2 12MHz

(Reserved)

OSC1

12MHz

LPEC1

(ENGINE CONTROL)

OSC3

23.8807368MHz

U36

(Counter Memory)

4-11

Samsung Electronics

Summary of product

Service Manual

USB 2.0

SDRAM

64MB

EEPROM

4k bit

Flash Memory

2MB

NPC / (W-LAN)

Optional

Full Function

Engine

Control

Block

LPEC1

SDRAM DIMM

34MB~128MB

SPGPm

Panel

16x2 LCD

5pinUART

1) CPU BLOCK

This is the heart of the machine. A120MHz - 32bit RISC processor is used to manage commands
and data supplied by the host. This is converted into a bitmap image which is passed to the engine
block for printing. The CPU is also used to control various other devices e.g. the USB 2.0 Interface
chip.

2) SPGPm overview

* Package

- 272 pins PBGA

* Power

- 1.8V(Core), 3.3V(IO) power operation

- P1284 inputs : 5V tolerant

* Speed

- 120MHz core(ARM946ES) operation, 60MHz bus operation

- Supportable Engine Speed : under 30ppm

* Dual bus architecture for bus traffic distribution

- AMBAHigh performance Bus (AHB)

- System Bus with SDRAM

* Integrated ARM946ES

- 32-bit RISC embedded processor core

- 16KB instruction cache and 16KB data cache

- No Tightly Coupled Memory

- Memory Protection Unit & CP15 control program

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Summary of Product

Samsung Electronics

Service Manual

* Direct connection up to 4 Flash ROM banks

- Burst capability

- Programmable timing per bank

- Up to 16MB address per bank (Limited to 8MB per bank when nDREQ0 is enabled)

* Direct connection up to 6 I/O banks & 4 DMA I/O banks

- Programmable timing per bank

- Programmable recovery timing per bank for slow devices

- Up to 16MB address per bank (Limited to 8MB per bank when nDREQ0 is enabled)

* Direct connection up to 5 SDRAM arrays

- SDRAM controller supports PC-66, PC-100 and PC-133 SDRAMs running at 60MHz

- Up to 128MB per array, up to 512MB totally

- Wide support of various SDRAM configurations, including programmable band and column
address

- Programmable SDRAM refresh time interval

* 4 General Purpose DMA controllers

- Extensible architecture allows peripheral devices such as scan devices to have access to SDRAM
arrays through DMA channels

- 8bits, 16bits and 32bits Data Transfer Modes are supported

- IO to Memory, Memory to IO, Memory to Memory transfer support

* IEEE1284 compliant parallel port interface

- Compatible ECP communications are supported

- Direct support for IEEE1284 compliant data transceivers

* RSH

- Fully Hardware Rotator, Scaler and Halftoner support

- Variable Image Scaler and Image Halftoning Unit for PCL6

- Pattern & Gamma Table Memory : 1024 x 8, 256 x 8 x 4

* Graphic Execution Unit for Banding support of Printer Languages

- Support up to 256 Bit Block Transfer

- Scan Line Transfer

- Polygon Filling

- Enhanced Graphic Order

* Compression / Decompression

- CODEC : Simplified JBIG algorithm for band compression / decompression

- HCT : Halftone Compression Technology (Byte Run-Length Type)

- Independent use of both Codec, but enabling only one Codec is desirable for bus traffic

* UART

- 3 Independent Full Duplex UART channels

- Max 16 bytes FIFO to handle SIR Bit Rate Speed

- DMA support for RX and TX of Channel0

* Printer Video Controller for LBP engines

- 20MHz video rate are targeted

- Two different kinds of Printer Video Controller (Selected by Software)

- PVC : Printer Video Controller without RET Algorithm

- HPVC : Printer Video Controller with RET algorithm
(Line Memory & Lookup Table Memory : 512 x 8 , 4096 x 16)

- High performance DMA based Interface to Printer Engine

- Engine Controller

- Motor Control Unit

- Motor Speed Lookup Table Memory (128 x 16 x 2)

- Pulse Width Modulation Unit

- 4 Channels are supported

- ADC Interface Unit

- 3 ADC Channels are available

- ADC Core (ADC8MUX8) maximum clock frequency : 3 MHz

- Coversion time : 4.3us (@3MHz)

- LSU Interface Unit