Samsung Lazett Combo SCX-4216F User manual

SERVICE
DIGITAL LASER MFP
SCX-4216F
SCX-4116
SCX-4016
Manual
DIGITAL LASER MFP 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

Copyright(c) 2003.03

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Samsung Electronics
Precautions
Service Manual
1. Precautions
The cautions in the below are items needed to keep in mind when maintaining and servicing.
Please read carefully and keep the contents in mind to prevent accidents while servicing and to prevent
that the machine gets damage.
1.1 Warning for safety.
(1) Request the service by qualified service person.
The service for this machine must be performed by a service person who took the additional education of
this field. It is dangerous if unqualified service person or user tries to fix the machine.
(2) Do not rebuild it discretionary.
Do not attach or change pats discretionary. Do not dissemble, fix, and rebuilt it. If do, printer will abnormally
work and electric shock or a fire can be occurred.
(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, 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 nor-
mal 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 precautions 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 STRAHLAUSSETZEN.
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 LASERSTR LNING VED BNING, N R
SIKKERHEDSBRYDERE ER UDEAF 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
OLETALTTIINA N KYM TT M LLE LASER-
S TEILYLLE L KATSO S TEESEEN.

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Precautions
Samsung Electronics
Service Manual
1.2 Caution for safety
1.2.1 Precaution related noxious material
There is a possibility to get harm from noxious material if you ignore the below information.
(1) Do not touch the damaged LCD. This PRINTER has LCD in control panel. Noxious liquid to human body exists in the
LCD. If it is got into mouth, immediately see a doctor. If it is got into eyes or on skin, immediately wash off over 15
minutes with flowing water and see a doctor.
(2) The toner in a printer cartridge contains a chemical material, which might harm human body if it is swallowed.
Please keep children out of the toner cartridge.
1.2.2 Precaution related electric shock or fire
It is possible to get electric shock or burn by fire if you don't fallow the instructions of the manual.
(1) Use exact voltage. Please do use an exact voltage and wall socket. If not, a fire or an electric leakage can be
caused.
(2) Use authorized power code. Do use the power code supplied with PRINTER. A fire can be occurred when over
current flows in the power code.
(3) Do not insert many codes in an outlet. If do, a fire can be occurred due to flow over current in an outlet.
(4) Do not put water or extraneous matter in the PRINTER. Please do not put water, other liquid, pin, clip, etc. It can
cause a fire, electric shock, or malfunction. If it is happened, turn off the power and remove the power plug from
outlet immediately.
(5) Do not touch the power plug with wet hand. When servicing, do remove the power plug from outlet. And do not
insert or take off it with wet hand. Electric shock can be occurred.
(6) Caution when inserting or taking off the power plug. The power plug has to be inserted completely. If not, a fire
can be caused due to poor contact. When taking off the power plug, do grip the plug and take it off. If grip the line
and pull over, it could be damaged. A fire or electric shock could cause.
(7) Management of power code. Do not bend, twist, or bind it and place other materials on it. Also, do not fix it with
staples. If the power code gets damage, a fire or electric shock can be caused. Adamaged power code must be
replaced immediately. Do not repair the damaged part and reuse it. A repaired part with plastic tape can be
occurred a fire or electric shock. Do not spread chemicals on the power code. Do not spread insecticide on the
power code. A fire or electric shock can be occurred due to thinner(weak) cover of the power code.
(8) Check whether the power outlet and the power plug are damaged, pressed, chopped, or blazing fire or not. When
such inferiorities are found, repair it immediately. Do not make it pressed or chopped when moving the machine.
(9) Caution when thundering, and being flash of lightening. It causes a fire or electric shock. Take the power plug off
when thundering. Do not touch cable and device when thundering and being flash of lightening.
(10) Do avoid the place where is moisture or has dust. Do not install the printer in where have lots of dust or around
humidifier. Afire can be occurred. A plug part need to clean well with dried fabric to remove dust. If water drops
are dripped on the place covered with dust, a fire can be occurred.
(11) Avoid direct sunlight. Do not install the printer near to window where directly contacts to the sunlight. If the
machine contacts sunlight long time, the machine cannot work properly because inner temperature of the
machine is getting higher. A fire can be caused.
(12) Turn off the power and take off the plug when a smoke, strange smell, or sound from the machine. If you keep
using it, a fire can be occurred.
(13) Do not insert steel or metal piece inside/outside of the machine. Do not put steel or metal piece into a ventila-
tor. An electric shock could be happened.

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Samsung Electronics
Precautions
Service Manual
1.2.3 Precaution related handling the machine.
If you ignore this information, you could get harm and machine could be damaged.
(1) Do not install it on the different levels, or slanted floor.
Please confirm whether it is balanced or not after installation. If it is unbalanced, an accident can be hap-
pened due to the machine fell over.
(2) Be careful not to insert a finger or hair in the rotating unit.
Be careful not to insert a finger of hair in the rotating unit (motor, fan, paper feeding part, etc) while the
machine is operating. Once it happens, you could harm.
(3) Do not place a pot contains water/chemical or small metals. If those are got into the inner side of machine,
a fire or electric shock can be occurred.
(4) Do not install it in where lots of moisture or dust exists or where raindrop reaches. A fire or electric shock
can be caused.
(5) Do not place a candlelight, burning cigarette, and etc. on the machine. Do not install it near to heater. A
fire can be occurred.
1.2.4 Precaution when assembly/disassembly
When replace parts, do it very carefully. Do memorize the location of each cable before replace parts for
reconnecting it afterwards. Do memorize. Please perform the below before replace or disassembly the parts.
(1) Check the contents stored in the memory. All the information will be erased after replace main board. The
information needed to keep has to be written down.
(2) Before servicing or replacing electric parts, take off a plug.
(3) Take off printer cables and power code connected to printer.
(4) Do use formal parts and same standardized goods when replacing parts.Must check the product name,
part code, rated voltage, rated current, operating temperature, etc.
(5) Do not give an over-force when release or tighten up the plastic parts.
(6) Be careful not to drop the small parts such as screws in the printer.
(7) Be careful not to change the location of small parts such as screws when assembling and disassembling.
(8) Do remove dust or foreign matters completely to prevent fire of tracking, short, or etc.
(9) After finished repair, check the assembling state whether it is same as before the repair or not.

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Precautions
Samsung Electronics
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 commer-
cially available wrist strap device, which should be removed for your personal safety reasons prior to apply-
ing 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 electric-
ity sufficient to damage an ESD.

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Samsung Electronics
REFERENCE INFORMATION
Service Manual
2. Reference Information
This chapter describes the reference information for applying this training manual, and it is consist-
ed of the tool list, the abbreviation table, the outline of model, and so on.
2.1 Tool for Troubleshooting
The following tools are recommended for safe and smooth troubleshooting described in this service manual.
DVM(Digital Volt Meter)
Standard: Indicates more than 3 digits.
1
Tweezers
Standard: For general home use, small
type.
4
Software(Driver) installation CD
ROM
7
Cotton Swab
Standard : For general home use, for
medical service.
5
Cleaning Equipments a IPA
(Isopropyl Alcohol)dry cloth or a
soft stuff neutral detergent.
6
Electronic Scale
Standard: Equipment to check the weight
of consumables supplied by
Samsung Electronics.
(The gram unit can be mea-
sured.)
2
Driver
Standard : "-" type, "+" type (M3 long, M3
short, M2 long, M2 short).
3

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REFERENCE INFORMATION
Samsung Electronics
Service Manual
2.2 Acronyms and Abbreviations
The table in the below explains abbreviations used in this service manual.
The contents of this service manual are declared with abbreviations in many parts. Please refer to the
table.
AC Alternating Current
ADF Automatic Document Feeder
ASIC Application Specific Integrated Circuit
ASSY assembly
BIOS Basic Input Output System
CCD Charge Coupled Device
CMOS Complementary Metal Oxide Semiconductor
CN connector
CON connector
CPU Central Processing Unit
dB decibel
dbA decibelampere
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
EEPROM Electronically Erasable Programmable Read
Only Memory
EMI Electro Magnetic Interference
EP electrophotographic
EPP Enhanced Parallel Port
F/W firmware
GDI graphics device interface
GND ground
HBP Host Based Printing
HDD Hard Disk Drive
HV high voltage
HVPS High Voltage Power Supply
I/F interface
I/O Input and Output
IC integrated circuit
IDE Intelligent Drive electronics or Imbedded
Drive Electronics
IEEE Institute of Electrical and Electronics
Engineers. Inc
IPA 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
LSU Laser Scanning Unit
MB Megabyte
MHz Megahertz
NVRAM Nonvolatile random access memory
OPC Organic Photo Conductor
PBA Printed Board Assembly
PCL Printer Command Language , Printer Control
Language
PDL Page Discription Language
PPM Page Per Minute
PTL Pre-Transfer Lamp
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

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Samsung Electronics
REFERENCE INFORMATION
Service Manual
2.3 The Sample Pattern for the Test
The sample pattern shown in below is the standard pattern used in a factory.
The contents of the life span and the printing speed are measured with the pattern shown in below.
(The picture in the manual is 70% size of the actual A4 size.)
2.3.1 A4 5% Pattern

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REFERENCE INFORMATION
Samsung Electronics
Service Manual
2.3.2 A4 2% Pattern

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Samsung Electronics
REFERENCE INFORMATION
Service Manual
2.3.3 A4 IDC 5% Patten

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REFERENCE INFORMATION
Samsung Electronics
Service Manual

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Samsung Electronics
Specifications
Service Manual
3. Specifications
Specfications 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 Remarks
Major Features SCX-4016 Copier, Print, Scan Without ADF
SCX-4116 Copier, Print, Scan With ADF
SCX-4216F Copier, Print, Scan, Fax With ADF
Size (W*D*H) SCX-4016 474x436x353mm
SCX-4216F/4116 474x436x417mm
Weight SCX-4016 11.7 Kg (25.8 lbs) With Toner Cartridge
SCX-4216F/4116 13 Kg (28.8 lbs) With Toner Cartridge
LCD 16*2 Char
I/O Interface USB1.1 & IEEE1284
Power Consumption Printing 350W
Sleep Mode 20W
Power Switch Yes
* Noise Operating SCX-4016 Less than 52 dBA
SCX-4216F/4116 Less than 55 dBA
Standby SCX-4016 Less than 39 dBA
SCX-4216F/4116 Less than 39 dBA
Warm Up Less than 42 seconds
Approval Class B
Device Memory 16 MB (Printer : 8M, Fax : 4M,
Scan : 2M, System : 2M)
Internal N/W Connectivity N/A
3.2 Print Specification
Items Descriptions Remarks
** Print Speed Up to 17 PPM in A4 size, IDC 5% pattern Letter size, 5%
Character Pattern
Print Method Laser Scanning Unit + Electro Photography
Print Language SPL
Power Save Yes(5/10/15/30/45min.)
Resolution Normal Up to 600 x 600 DPI effective output
RET No
Toner Save Yes
Memory 8 MB
FPOT Stand by Approx. 12 seconds
Power Save Less than 54 seconds
Printable Area 207.6 X 270.6 mm (Letter)
Toner Save Yes
* Sound Pressure Level, ISO 7779
** Print speed will be affected by Operating System used, computing performance, application software,
connecting method, media type, media size and job complexity.

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Specifications
Samsung Electronics
Service Manual
3.3 Scan Specification
Items Descriptions Remarks
Halftone(Gray Scale) 256 level
Scan Method Color CCD ITU-T #1 Chart
*Scan Speed ADF Up to 25 Sec Text/Mixed Mode :
(seconds/scan) (SCX-4216F/4116) B/W Letter & 300dpi.
(USB)
Up to 72 Sec Photo Mode : Gray
Letter & 300dpi.
(USB)
Platen Up to 23 Sec
Resolution Optical Up to 600 x 600 DPI effective output
Enhanced USB Up to 4800 x 4800 DPI effective output
Parallel Up to 2400 x 2400 DPI effective output
Halftone 256 level
Scan Width Width Max.216mm (8.5")
Length(Adf) Max. 356mm (14.0")
Length(Platen) Max. 297mm (11.7")
Scan-to E-mail, Image, OCR, FAX, WEB
* Scan speed will be affected by Operating System used, computing performance, application software,
connecting method, media type, media size and job complexity.

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Samsung Electronics
Specifications
Service Manual
3.4 Copy Specification
Items Descriptions Remarks
Copy Quality Selection Text 600x300dpi
or Original Image type Auto 600x300dpi
selection Mode Photo 600x600dpi for Platen / 600x300dpi forADF
Other -
FCOT Platen Power Save Approx. 54 seconds
Stand by Approx. 12 seconds
ADF Power Save Approx. 54 seconds
Stand by Approx. 17 seonds
* Copy speed Text Mixed SDMC Up to 6 CPM in A4 size,
Up to 17 CPM in Letter size
/ Letter MDMC Up to 7 CPM in A4 size,
Up to 17 CPM in Letter size
Photo SDMC Up to 16 CPM
MDMC Up to 4 CPM
Resolution Scan Up to 600 x 600 DPI effective output
Print Up to 600 x 600 DPI effective output
Zoom Range 25% to 400 %
Multi Copy 1~99
Preset Yes
Contrast Control 3 level(by LED)
Copy Mode TEXT/MIXED/PHOTO
Collation Copy Yes(300dpi only) SCX-4216F/4116
Auto return to default mode Yes(after 1 minute)
N-up copy 2-up, 4-up SCX-4216F/4116
AutoFit Copy Yes Platen Only
Clone Yes Platen Only
Poster Yes Platen Only
* Copy speed will be affected by Operating System used, computing performance, application software,
connecting method, media type, media size and job complexity.

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Specifications
Samsung Electronics
Service Manual
3.5 Telephone Specification (SCX-4216F Only)
Items Descriptions Remarks
Handset No
On hook Dial Yes
Search Yes (Phone Book)
1-Touch Dial 10EA (3*4 Numeric Key)
Auto dial 100 locations (Using 3*4 buttons)
TAD I/F No
Tone/Pulse Selectable in Tech Mode
Pause No
Auto Redial Yes
Last Number Redial Yes
Distinctive Ring No
Caller ID No
External Phone Interface No
Report & List Print out Tx/Rx Journal Yes
Confirmation 2 types available
(with Image TCR, w/o image TCR)
Help List No
Auto Dial List Yes
System Data List List all user setting
Sound Control Ring Volume Yes(Off,Low,MED,HIGH)
Key Volume Yes(On,Off)
Speaker Yes(On,Off)

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Samsung Electronics
Specifications
Service Manual
3.6 Fax Specification (SCX-4216F Only)
Items Descriptions Remarks
Compatibility ITU-T G3
Communication System PSTN/PABX
Modem Speed 33.6 Kbps
TX Speed Approx. 3 sec
Compression MH/MR/MMR/JPEG
ECM Yes
Resolution Std Up to 203 x 98 DPI effective output
Fine Up to 203 x 196 DPI effective output
S.Fine Up to 300 x 300 DPI effective output
*Scan Speed (ADF) Std Approx. 5sec/LTR
Fine Approx.7.5sec/LTR
S.Fine Approx.7.5sec/LTR
Rx fax duplex print out No
Multiple page scan speed Approx. 7 ppm/LTR
Receive Mode Fax, TEL
Memory Capacity 4 MB (320 pages)
Optional Memory No
Max locations to 99 locations
store to 1 Group Dial
Fax Forward Yes (On/Off)
Broadcasting Up to 59 locations
Forced Memory TX No
Cover page No
Delayed fax Yes
Memory RX Yes
Functions Voice Request No
TTI Yes
RTI Yes
Polling No
Earth/Recall No
Auto Reduction Yes
RDC No
Junk Fax barrier Yes
Security Mode Yes
Battery Backup Yes (Min. 15 minutes) Back up Fax memory
and Real Time data
* Scan speed will be affected by Operating System used, computing performance, application software,
connecting method, media type, media size and job complexity.

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Specifications
Samsung Electronics
Service Manual
3.7 Paper Handling
3.8 Software
Items Descriptions Remarks
Capacity Main Tray 250sheets
(20lbs) Bypass Single Sheet
Optional Cassette No
Output Capacity 150Sheets/20lb, 1Sheet/Face up
Output Control Face down
Paper Size Main Tray
CST : A4,Letter,Legal, Folio,Executive,B5
Bypass Bypass : Envelope6 3/4,7 3/4, #9, #10,
DL,C5,B5
Paper Weight Main Tray 16~24 lb.
Bypass 16~32 lb.
Paper Path Standard output Bottom to Middle Front (FIFO)
Straight Through Face up, Single Sheet
Paper Size Max 216 x 356mm(8.5"x14")
Min 76 x 127mm(3"x5")
Output Stacker Paper Extension
Document Fixed
Input Guide Bypass Tray Adjustable
Main Tray Universal
Document Adjustable
ADF Paper Weight 12.5~28lb
Capacity 30 sheets(20lb)
Document Size Widtth 148mm - 216mm(5.8" - 8.5")
Document Size Length 127 mm - 356mm(5" - 14.0")
Items Descriptions Remarks
Compatibility DOS No
Win 3.x No
Win 95 Yes
Win 98&WinME Yes
Win NT 4.0 Yes
Win 2000 Yes
Win XP Yes WHQL for Printer Only
Mac Yes Mac Printer Only
Linux No
Driver Printer SPL
TWAIN Yes
PC-FAX No PC Fax is only avail-
able through PC
Modem

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Samsung Electronics
Specifications
Service Manual
3.9 Consumables
Items Descriptions Remarks
Type Single Cartridge
How to install Front door open and front loading
Toner Life Up to 1,000 Sheets Initial toner life could
Up to 3,000 Sheets be different accroding
to country
Level Sensor No
Toner Count Yes

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Specifications
Samsung Electronics
Service Manual