Samsung SF-530 Series User manual

SERVICE
SAMSUNG FACSIMILE
SF-530/531P
Manual
FACSIMILE CONTENTS
1. Precautions
2. Specifications
3. Disassem ly and Reassem ly
4. Trou leshooting
5. Exploded Views and Parts List
6. Block Diagram
7. Connection Diagram

ELECTRONICS
© Samsung Electronics Co.,Ltd. September 2001
Printed in Korea.
VERSION NO. : 1.00 CODE : JC-0059A
This service manual is also provided on the web,
the ITSELF system Samsung Electronics Co., Ltd.
http://itself.sec.samsung.co.kr

This manual is stated and
provided for service description.
All rights reserved. Any parts of the
information in this manual are prohibited
from free duplication, use or translation
without prior written approval except in
cases allowed by the Copyright Act.
Specifications are subject to change without
prior notice.
Copyright (c 2001. 9.
Samsung Electronics Digital Printing CS Group

Precautions
1-1
Samsung Electronics
1. Precautions
Please read the following carefully to prevent any accidents and not to damage the unit during service.
1-1 Safety Precautions
1-2 Precautions on Disassembly and Reassembly
1. Safety Precautions
There are some electric or machinery parts with safety
related property. If the parts replaced are different from
the original, the safety may not function. Even if the part
could allow higher voltage than that of the part used, do
not replace it and use a regular product clarified in spec-
ifications.
2. Becareful not toleave a switch,a coveror a safetydevice
out when reinstalling or assembling the product after
repair.
3. Replacing Precautions
Do not change or add parts as you like. You cannot ben-
efit from such a remodeled product at your will during the
term of guarantee.
4. You must replace overheated or damaged parts or cords
with regular products. Please solve the problem causing
any damage or overheating and troubles beforehand.
Especially mind the safety on the part with this
mark.
You must use regular parts described in specifica-
tions for the parts inflammable and where the cur-
rent can be flown. Otherwise any hazard such as
an electric shock or a fire could occur.
LASER STATEMENT (LASERTURVALLISUUS)
WARNING : NEVER OPERATE AND SERVICE THE PRINTER
WITH THE PROTECTIVE COVER REMOVED
FROM LASER/SCANNER ASSEMBLY. THE
REFLECTIVE BEAM, ALTHOUGH INVISIBLE, CAN
DAMAGE YOUR EYES.
Class 1 laser product
Luokan 1 laserlaite
Klass 1 laser apparat
Allonpituus 770-795nm
Teho 0.3mW±0.03mW
CAUTION
VORSICHT
ATTENTION
ATTENZIONE
PRECAUCION
CAUTION : Avoid exposure to invisible laser radiation when the
development unit is not installed.
INVISIBLE LASER RADIATION WHEN
THIS COVER OPEN. DO NOT OPEN
THIS COVER.
UNSICHTBARE LASERSTRAHLUNG,
WENN ABDECKUNG GEOFFNET.
NIGHT DEM STRAHL AUSSETZEN.
REYONNEMENT LASER INVISIBLE EN CAS
D’OUVERTURE. EXPOSITION DANGERUSE AU
FAISCEAU.
RADIAZIONE LASER INVISIBLE IN CASO DI
APERTURA. EVITARE L’ESPOSIZONE LA FASCIO.
REDIACION LASER INVISIBLE CUANDO SE
ABRE. EVITAR EXPONERSE AL RAYO.
Very careful precautions should be taken when replacing
parts. Before replacing, please check cables because you
cannot put the cables that you removed for replacing parts
into the proper place if you would not make sure of where
they were connected and in which condition.
Please do the following before disassembling
for a repair or replacement of parts.
1. Pull out paper cassette, printer cartridge installed.
Especially careful not to be scratched by the surface of
developer or not to expose them to light.
2. Turn the power switch off.
3. Take out the power plug, printer cable from the printer.
4. Use only the same type of part as original when replacing
parts.
5. Do not force to open or fasten plastic material compo-
nents.
6. Be careful that small parts such as screws should not get
in the printer.
7. When disassembling, assembling, also observe small
components are located in place.
8. Ifyou uncover and turnthe machine overto replace some
parts, toner or paper particles may contaminate the LSU
window. Protect the LSU window with clean paper.
Releasing Plastic Latches
Many of 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.

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 sta-
tic electricity.
1. Immediately before handling a semiconductor compo-
nent or semiconductor-equipped assembly, drain off any
electrostatic charge on your body by touching a known
earth ground. Alternatively, employ a commercially avail-
able wrist strap device, which should be removed for your
personalsafety reasons priorto applying powerto theunit
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 pre-
vent electrostatic charge buildup in the vicinity of the
assembly.
3. Use only a grounded tip soldering iron to solder or desol-
der ESDs.
4. Use only an “anti-static” solder removal device. Some sol-
der 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 dam-
age 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 compa-
rable 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 com-
pletely plugged or soldered into the circuit.
9. Minimize bodily motions when handling unpackaged
replacement ESDs. Normal motions, such as the brush-
ing together of clothing fabric and lifting one’s foot from a
carpeted floor, can generate static electricity sufficient to
damage an ESD.
1-3 ESD Precautions
Precautions
1-2 Samsung Electronics
CAUTION:
Be sure no power is applied to the chassis or cir-
cuit, and observe all other safety precautions.

Precautions
1-3
Samsung Electronics
1-4 Tools for Troubleshooting
The following tools are recommended for safe and smooth troubleshooting described in this service manual.
DCU(Diagnostic Control Unit)
Standard: Test equipment to diagnose the Laser
printer supplied by Samsung Electronics.
DVM(Digital Volt Meter)
Standard: Indicates more than 3 digits.
Electronic Scale
Standard: Equipment to check the weight of con-
sumables(toner cartridge) supplied by Samsung
Electronics. (The gram unit can be measured.)
Driver
Standard: "-" type, "+" type (M3 long, M3 short,
M2 long, M2 short).
Pinset
Standard: For general home use, small type.
Cotton Swab
Standard: For general home use, for medical ser-
vice.
Cleaning Equipments a IPA(Isopropyl
Alcohol)dry cloth or a soft stuff neutral
detergent.
Software(Driver) installation CD ROM
Mind your hands not to be touched when
you disassemble and reassemble PBAASS'Y,
such as the main board, SMPS, HVPS.
Note
1
2
3
4
5
6
7
8

ITEMS FAX MFP REMARKS
SF-530 SF-531P
2.Specifications
Samsung Electronics 2-1
General Size(W*D*H) 370 X 356 X 195 mm
Weight 6.9 Kg (With accessories)
Power Rating AC 110V ~ 120V ± 15%, 50/60Hz ± 3Hz
AC 220V ~ 240V ± 15%, 50/60Hz ± 3Hz
Operating Environment Temperature : 10 ~ 32˚C
Humidity : 20 ~ 85% RH
LCD 16*1 Char 16*1 Char
Interface NA ECP(IEEE1284), USB
Halftone 64 Level 64 Level
Life 50000 Pages 50000 Pages
Power Power Button No No
Input Voltage 110V~120V, 220V~240V 110V~120V, 220V~240V
Power Idle 10 W/H 10 W/H
Consumption Max 140 W/H 140 W/H
Power Save Mode OFF, 15, 30, 60 Min OFF, 15, 30, 60 Min
Print Print Method Laser Laser
Speed 8ppm (FAX Print Out) 8ppm ( PC Print & Fax Print)
Resolution Normal NA 600 x 600 DPI
Print language No PrinThru
Toner Save 30 ~ 50 % 30 ~ 50 %
Scan Scan Method CIS CIS
Quick Scan Speed 6 sec 3 sec
Resolution 200 x 200 DPI 300 x 300 DPI
Scan Width Max 216 mm 216 mm
Effective 210 mm 210 mm
Scan Length Max 1000 mm 1000 mm
(Std Mode : 365 mm) (Std Mode : 365 mm)
Copy Speed 8 ppm 8 ppm
Resolution 600 x 600 DPI 600 x 600 DPI
Zoom Range 50 ~ 130 % 50 ~ 200%
Collate/Reverse Yes Yes
Multi Copy 1 ~ 99 1 ~ 99

2-2 Samsung Electronics
Specifications
ITEMS FAX MFP REMARKS
SF-530 SF-531P
Telephone Handset Yes Yes
1-Touch Dial 20 EA 20 EA
Speed Dial 80 EA 80 EA
Group Dial 20 EA 20 EA
Caller ID Yes
(Germany, France, Canada, Australia, New Zealand, US)
TAD No
TAD I/F Yes
Tone/Pulse Tone : US, UK, Korea
Tone/Pulse : ETC
No Power Operation No
Earth/Recall Yes
External Phone Transfer Yes
FAX Compatibility ITU G3
Communication System PSTN/PABX
Modem Speed 33.6Kbps Fax Modem
TX Speed 3sec Using CCitt #1 Chart
with Standard Resolution
Compression MH/MR/MMRc
Rcv. Mode TEL, FAX, AUTO, ANS/FAX
ECM Yes
DRPD Yes USA, New Zealand,
Australia, SEMI only
Resolution Std 203*98dpi
Fine 203*196dpi
S.Fine 203*392dpi
Memory Capacity 2MB
Optional Memory None
Functions Voice Request Yes
TTI Yes
RTI Yes
Polling Yes
Flash Yes
Auto Reduction Yes
Broadcasting 20 EA (99 locations) 20 EA(98 locations)
Forced Memory Yes
Delay TX 20 Locations 19 locations
Memory RX Yes
RDC Yes
Battery B/U Yes (Max 20 Min)

Paper ASF Type BIN
Handling Input Capacity 150 Sheets / 20Ib
Optional Cassette No
Output Capacity 100Sheets / 20Ib
Output Control Face up
Bypass No Yes
Media Type Plain Paper Plain, Coated, Transparency,
Envelop, Card, Post Card,
Label
Media Size A4, Letter, Legal • Paper : A4, Letter, Legal, Envelop : Manual
Folio, Executive, feeding only
B5, A5
• Envelop : 6 3/4, 7 3/4, #9,
#10, DL, C5,
B5, Baronial
Media Weight 16~24Ib 16~43Ib
ADF Input Capacity 20 Sheets / 20Ib
Media Weight 12.5 ~32Ib
Software Compatibility DOS No
Win 3.x No
Win 95 No Yes
Win 98 No Yes
Win NT 4.0 No Yes
Win 2000 No
Provide After Launch Win 2000
Driver Printer No Samsung PrinThru
TWAIN No Samsung ScanThru (TWAIN)
PC-FAX No Samsung FaxThru
Media CD-ROM No Yes
Diskette No No
Y2K Compliant Yes Yes
Including Software No Print/Scan/Copy/Driver,
PC-Fax/ E-mail/ OCR Software
Special Direct E-mail Send No Yes
Features Fax Forward Yes
Toner Save Yes
Reprint No Yes (Only Last PC Print)
2-up FAX Receive Yes
Scan to PC-FAX No Yes
Toner Life Initial 1,000 Pages
Using 4% Coverage Pattern
Cartridge Running 2,500 Pages Using 4% Coverage Pattern
Toner Sensor Support Yes
Method Software Dot Counting
Lock Key (With Printer & OEM) Yes
Maintena ADF Rubber 10K Pages Scan
nce Cycle Paper Feeding Roller 50K Pages Printer
Transfer Roller 60K Pages Print
Fuser Unit 50K Pages Print
Samsung Electronics 2-3
Specifications
ITEMS FAX MFP REMARKS
SF-530 SF-531P

3-1
Samsung Electronics
3. Disassembly and Reassembly
3-1 General Precautions on Disassembly
When you disassemble and reassemble compo-
nents, 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 per-
form as follows:
1. Check to verify that documents are not stored in
memory.
2. Be sure to remove the toner cartridge before you
disassemble parts.
3. Unplug the power cord.
4. Use a 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.

3-2 Cradle
1. Push the lever and remove the cradle as shown
below.
3-3 White Roller
1. Open the OPE cover.
2. Push the bushing on the end of the Roller slightly
inward, then rotate it until it reaches the slot.
Then lift, the Roller out.
Note : Check the Roller for any dirt. If dirty, wipe it off with
soft cloth dampened with water. If the Roller is
heavily worn, replace it with a new one.
3-2
Samsung Electronics
Disassembly and Reassembly
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Control Panel
Bushing
White Roller
A
B

3-4 OPE Cover
1. Pull the cover release button on both sides of the
machine, and open the front cover.
2. Remove two stoppers holding the front cover unit and
unplug one connector and one wire.
3. Pull the bottom left end of the cover downward to
unlatch the front cover unit and remove the cover
from the main frame.
4. Remove two screws securing bracket scan board,
then take out the bracket scan board.
5. Unplug two connectors and one wire from the scan
board.
6. Lift the OPE cover.
Samsung Electronics
3-3
Disassembly and Reassembly
1
2
1
2

7. Remove the stopper holding the OPE cover.
8. Unlatch the bottom ends, then remove the OPE
cover.
3-4
Samsung Electronics
Disassembly and Reassembly
1
2

3-5 ADF Rubber
1. Open the OPE unit.
2. Insert a flat blade screw driver and pinset into the slot
as shown below, and release the latches. Take out the
Holder Rubber, Sheet ADF and the Rubber ADF.
Notes : • When you reassemble the them, be sure that
the RubberADF and Holder Rubber fit into the
guide boss and the Holder Rubber latches fit
into the corresponding hole. Then push firmly
until it clicks.
3. Clean the surface of the rubber pad with IPA (Isopropyl
Alcohol).After wiping it, be sure to dry it. Checktherub-
ber wear. If the wear reaches 1/2 its original thickness,
replace it with a new one.
Samsung Electronics
3-5
Disassembly and Reassembly
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Holder Rubber
Rubber ADF
Guide Boss
Holder Rubber
Rubber ADF
Pinset or
Screw Driver
Safely Precautions :
Do not force to open or fasten plastic material
components.
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Rubber ADF
Guide Boss
Holder Rubber

3-6 OPE Board
1. Before you remove the OPE board, you should
remove:
– OPE cover (see page 3-3)
2. Remove four screws securing the OPE board.
3. Release two latches securing the both side of the
LCD and the two of four latches securing the board.
Then remove the OPE board.
3-6
Samsung Electronics
Disassembly and Reassembly
3-7 Lever Sensor Doc.
1. Unlatch the lever sensor Doc from the scan upper
frame and take it out.
3-8 Lever Sensor Scan
1. Push the both sides of Lever sensor Scan inward,
then unlatch and take out the sensor Scan from the
scan upper frame.

3-9 Scan Board
1. Before you remove Scan board, you should remove:
– Bracket scam board (see page 3-3)
2. Unplug all the connectors from the scan board and
remove the board.
Samsung Electronics
3-7
Disassembly and Reassembly
3-10 Scan Motor
1. Before you disassemble Scan Motor, you should
remove:
– OPE cover (see page 3-3)
– Bracket scan board (see page 3-3)
2. Unplug one connector from the scan board.
3. Remove three screws, then remove the motorAss’y
from the main frame.
4. Take out the gear from the Motor Ass’y.
5. Remove two screws and remove the motor.

3-11 ADF Roller
1. Before you remove the ADF Roller, you should
remove:
– OPE cover (see page 3-3)
2. Remove two screws securing the guide paper and
remove the guide paper.
3. Remove ADF Roller from the scan front frame.
3-8
Samsung Electronics
Disassembly and Reassembly
Guide Paper
ADF Roller
3-12 CIS
1. Remove one screw and push CIS as shown below
and lift it. 2. Separate the Dummy CIS from CIS.
CIS
tape

3-13 Rear Cover
1. Remove two screws.
2. Push the metal clip on the parallel port down and
remove the rear cover from the main frame.
Samsung Electronics
3-9
Disassembly and Reassembly
3-14 Top Cover
1. Before you remove the ADF Roller, you should
remove:
– OPE cover (see page 3-3)
– Rear cover (see above)
2. Remove two screws securing the top cover from the
back side of the machine.
3. Remove two screws and slide the left and right paper
guides fully inward. Then spread the bottom of the top
cover and lift the cover to remove.
Paper guides

3-15 Tray
1. Before you remove the tray, you should remove:
– OPE cover (see page 3-3)
– Rear cover (see page 3-9)
– Top cover (see page 3-9)
2. Take out the tray from the main frame.
3-10
Samsung Electronics
Disassembly and Reassembly
3-16 LSU
1. Before you remove the LSU, you should remove:
– All covers (see page 3-3, 3-9)
2. Remove three screws securing the LSU.
3. Unplug two connectors from the LSU and remove the
LSU.

3-17 Transfer Roller
1. Pull the cover release button on both sides of the
machine, and open the front cover.
2. Lift the transfer Roller using a proper tool (-Driver) and
take out the Roller.
Samsung Electronics
3-11
Disassembly and Reassembly
3-18 Engine Board
1. Before you remove the Engine board, you should
remove:
– All covers (see page 3-3, 3-9)
– LSU (see page 3-10)
2. Unplug five connectors and remove one screw from
the engine board, then remove the board.