Samsung SF-830 Bedienungsanleitung

Digital Laser MFP

SF-830/SF-835P

1. Precautions

2. Speciﬁcations

3. Disassembly

4.Troubleshooting

5. ExplodedViews and Parts List

6. Block Diagram

7. Connection Diagram

Digital Laser MFP Contents

SERVICE

MANUAL

ELECTRONICS

This service manual is also provided on the web,

the ITSELF system Samsung Electronics Co., Ltd.

“http://itself.sec.samsung.co.kr”

Printed in Korea.

VERSION NO. : 1.00 CODE :

This manual is stated and

provided for service description.

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.

Samsung Electronics Digital Printing CS Group

Contents

Samsung Electronics 1

Contents

1. Precautions................................................................................... page(1-1)

1-1 Safety Precautions.............................................................................................page(1-1)

1-2 ESD Precautions................................................................................................page(1-2)

1-3 Super Capacitor or Lithium Battery Precautions................................................page(1-2)

1-4 Tools for Troubleshooting....................................................................................page(1-3)

2. Speciﬁcations............................................................................... page(2-1)

2-1 Printer.................................................................................................................page(2-1)

2-2 Facsimile............................................................................................................page(2-2)

2-3 Scanner..............................................................................................................page(2-2)

2-4 Copier.................................................................................................................page(2-3)

2-5 Power Supply .....................................................................................................page(2-3)

2-6 Dimension..........................................................................................................page(2-4)

2-7 Telephone...........................................................................................................page(2-4)

2-8 Packaging...........................................................................................................page(2-4)

2-9 Environmental Condition....................................................................................page(2-4)

3. Disassembly and Reassembly ................................................... page(3-1)

3-1 General Precautions on Disassembly...............................................................page(3-1)

3-2 Rear Cover .........................................................................................................page(3-1)

3-3 Scanner Ass'y ....................................................................................................page(3-2)

3-4 ADF Ass'y............................................................................................................page(3-6)

3-5 OPE Ass'y .........................................................................................................page(3-8)

3-6 Side Cover Ass'y ..............................................................................................page(3-9)

3-7 Fuser Ass'y..........................................................................................................page(3-11)

3-8 Exit Ass'y.............................................................................................................page(3-12)

3-9 Cover Paper Exit Ass'y........................................................................................page(3-12)

3-10 Drive Ass'y ........................................................................................................page(3-13)

3-11 SMPS................................................................................................................ page(3-14)

3-12 LSU...................................................................................................................page(3-15)

3-13 Main Frame Ass'y..............................................................................................page(3-16)

• Cover Exit Rear.................................................................................................................page(3-17)

• MP Ass'y ..........................................................................................................................page(3-18)

• Feed Ass'y ........................................................................................................................page(3-19)

• Pick Up Ass'y....................................................................................................................page(3-19)

• Main PBA..........................................................................................................................page(3-20)

Contents

Samsung Electronics2

4. Maintenance &Troubleshooting ................................................. page(4-1)

4-1 Preventative Maintenance..................................................................................page(4-1)

4-2 Error Messages..................................................................................................page(4-2)

4-3 User Mode...........................................................................................................page(4-4)

4-4 Tech Mode...........................................................................................................page(4-5)

4-4-1 How to Enter Service Mode..........................................................................page(4-5)

4-4-2 Setting-up System in Tech Mode ..................................................................page(4-6)

4-4-3 SYSTEM DATA..............................................................................................page(4-8)

4-4-4 MEMORY CLEAR.........................................................................................page(4-8)

4-4-5 MAINTENANCE............................................................................................page(4-9)

4-4-6 REPORT/HELP.............................................................................................page(4-11)

4-4-7 Firmware Upgrade........................................................................................page(4-12)

4-4-7-1 Local Machine.........................................................................................page(4-12)

4-4-7-2 Remote FAX.............................................................................................page(4-13)

4-5 ENGINE TEST ...................................................................................................page(4-13)

4-5-1 To enter the Engine Test Mode....................................................................page(4-13)

4-5-2 Diagnosti......................................................................................................page(4-14)

4-5-3 ENGINE PRINT ............................................................................................page(4-14)

4-6 Troubleshootion..................................................................................................page(4-15)

4-6-1 Scanner........................................................................................................page(4-15)

4-6-1-1 COPY......................................................................................................page(4-15

4-6-1-2 PC-Scan .................................................................................................page(4-16)

4-6-2 FAX(only SCX-5312F)..................................................................................page(4-17)

4-6-2-1 FAX/TELEPHONE Precautions ..............................................................page(4-17)

4-6-3 Print Quality .................................................................................................page(4-18)

• Abnormal Image Printing and Defective Roller.................................................................page(4-20)

• No Image ..........................................................................................................................page(4-21)

• All Black............................................................................................................................page(4-23)

• Vertical White Line (Band).................................................................................................page(4-24)

• Dark Image .......................................................................................................................page(4-25)

• Background.......................................................................................................................page(4-26)

• Ghost ................................................................................................................................page(4-27

• Black Dot..........................................................................................................................page(4-28)

• Horizontal Band ................................................................................................................page(4-29)

• Irregular Density................................................................................................................page(4-30)

• White Spot ........................................................................................................................page(4-31)

• Trembling at the EndWhen OHP Printing.........................................................................page(4-32)

• Poor Fusing Grade............................................................................................................page(4-33)

4-6-4 Malfunction...................................................................................................page(4-44)

• No Power (LCD NO display LED Off)................................................................................page(4-36)

• Fuser Error........................................................................................................................page(4-37)

• Paper Jam (Mis-Feeding).................................................................................................page(4-38)

• Paper Jam(Jam 1).............................................................................................................page(4-39)

• Engine Error......................................................................................................................page(4-40

4-6-5 Toner Cartridge Service................................................................................page(4-41)

Contents

Samsung Electronics 3

4-6-5-1 Signs and Measures at Poor toner cartridge ..........................................page(4-42)

4-6-6 The cause and solutions of bad environment of the software.......................page(4-45)

4-6-6-1 The printer is not working (1) .................................................................page(4-45)

4-6-6-2 The printer is not working (2)..................................................................page(4-45)

4-6-6-3 Abnormal Printing...................................................................................page(4-46)

4-6-6-4 SPOOL Error ..........................................................................................page(4-46)

5. Exploded View & Parts List

5-1. Main Exploded View & Parts List........................................................................page(5-2)

5-2. Platen Ass'y Exploded View & Parts List............................................................page(5-5)

5-3. ADF ASS'Y Exploded View & Parts List.............................................................page(5-9)

5-4. Side Cover Ass'y Exploded View & Parts List ....................................................page(5-12)

5-5. Cassette Ass'y Exploded View & Parts List........................................................page(5-14)

5-6. Exit Ass'y Exploded View & Parts List................................................................page(5-16)

5-7. Feeder Ass'y Exploded View & Parts List...........................................................page(5-18)

5-8. MP Ass'y Exploded View & Parts List.................................................................page(5-20)

5-9. Base Frame Exploded View & Parts List............................................................page(5-22)

5-10.Pick-up Ass'y Exploded View & Parts List.........................................................page(5-24)

5-11. Drive Ass'y Exploded View & Parts List............................................................page(5-26)

5-12. Main Frame Ass'y Exploded View & Parts List.................................................page(5-28)

5-13. FuserAss'y Exploded View & Parts List...........................................................page(5-30)

5-14. Screw ..............................................................................................................page(5-32)

6. Block Diagrams ............................................................................ page(6-1)

7. Connection Diagram .................................................................... page(7-1)

Precautions

Samsung Electronics 1-1

1. Precautions

Follow these safety, ESD, and servicing precautions to prevent personal injury and equipment damage.

1-1 Safety Precautions

1. Be sure that all built-in protective devices are in

place.Restore any missing protective shields.

2. Make sure there are no cabinet openings

through which people-particularly children- might

insert ﬁngers or objects and contact dangerous

voltages.

3. When re-installing chassis and assemblies, be

sure to restore all protective devices, including

control knobs and compartment covers.

4. Design Alteration Warning:Never alter or add to

the mechanical or electrical design of this equip-

ment, such as auxiliary connectors, etc. Such

alterations and modiﬁcations will void the manu-

facturer’s warranty.

5. Components, parts, and wiring that appear to

have overheated or are otherwise damaged

should be replaced with parts which meet the

original speciﬁcations. Always determine the

cause of damage or overheating, and correct any

potential hazards.

6. Observe the original lead dress, especially near

sharp edges, AC, and high voltage power sup-

plies. Always inspect for pinched, out-of-place,

or frayed wiring. Do not change the spacing

between components and the printed circuit

board.

7. Product Safety Notice:Some electrical and

mechanical parts have special safety-related

characteristics which might not be obvious from

visual inspection. These safety features and the

protection they provide could be lost if a replace-

ment component differs from the original. This

holds true, even though the replacement may be

rated for higher voltage, wattage, etc.

8. Components critical for safety are indicated in

the parts list with symbols .

Use only replacement components that have the

same ratings, especially for ﬂame resistance and

dielectric speciﬁcations. A replacement part that

does not have the same safety characteristics as

the original may create shock, ﬁre, or other

safety hazards.

Precautions

Samsung Electronics1-2

1-2 ESD Precautions

1. 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” compo-

nents.

The techniques outlined below should be fol-

lowed 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 pre-

cautions.

2. Immediately before handling a semiconductor

component or semiconductor-equipped assem-

bly, drain off any electrostatic charge on your

body by touching a known earth ground. Alterna-

tively, 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.

3. After removing an electrical assembly equipped

with ESDs, place the assembly on a conductive

surface, such as aluminum or copper foil, or con-

ductive foam, to prevent electrostatic charge

buildup in the vicinity of the assembly.

4. Use only a grounded tip soldering iron to solder

or desolder ESDs.

Use only an “anti-static” solder removal device.

Some solder removal devices not classiﬁed as

“anti-static” can generate electrical charges sufﬁ-

cient 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 pro-

tective packaging until immediately before install-

ing 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 replace-

ment 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 unpack-

aged replacement ESDs.Normal motions, such

as the brushing together of clothing fabric and

lifting one’s foot from a carpeted ﬂoor, can gener-

ate static electricity sufﬁcient to damage an ESD.

1-3 Super Capacitor or Lithium Battery Precautions

1. Exercise caution when replacing a super capaci-

tor 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 manufac-

turer.

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 manu-

facture’s instructions.

Precautions

Samsung Electronics 1-3

1-4 Tools forTroubleshooting

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.

Driver

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

long, M2 short).

Pinset

Standard: For general home use, small type.

Electronic Scale

Standard: Equipment to check the weight of consum-

ables(toner cartridge) supplied by Samsung Electron-

ics.(The gram unit can be measured.)

Cotton Swab

Standard: For general home use, for medical service.

Cleaning Equipments a IPA(Isopropyl

Alcohol)dry cloth or a soft stuff neutral

detergent.

Software(Driver) installation CD ROM

Note

: Mind your hands not to be touched when you

disassemble and reassemble PBA ASS'Y,

such as the main board, SMPS, HVPS.

Speciﬁcation

Samsung Electronics 2-1

2. Speciﬁcation

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

See below for product speciﬁcations.

2-1 General Speciﬁcations

Item Description

Type of Unit Desktop

Operation System Win95/98/ME/ NT /2000/XP

Duplex Printing Yes(Default)

Interface IEEE1284(Nibbel/ECP)

USB(without HUB mode)

CPU 66 MHz(KS32C61200)

Emulation PCL6 (SF-835P Only)

Warming up Time 41 Sec (Stand-By), 25˚C

Absolute Storage Condition Temperature : -20°C ~ 40°C, Humidity :10% RH ~ 95% RH

Operating Condition Temperature : 10˚C ~ 32˚C, Humidity : 20% RH ~ 80 % RH

Recommended Operating Condition Temperature :16°C ~ 30°C, Humidity :30% RH ~ 70% RH

Dimension(W X D X H) 560 X 433 X 459 mm

Weight About 22.5 Kg(with CRU)

Acoustic Noise Less than 56/47 dB(Copy/Printing mode)

Power Rating AC 100VAC ~ 127VAC ± 15 %, 50/60Hz ± 3Hz

AC 220VAC ~ 240VAC ± 15 % , 50/60Hz ± 3Hz

Power Consumption Avg. 320Wh ( No load Condition)

Power Save Consumption Avg. 25Wh

Recommended System Requirement Pentium II 233 Mhz, 64 MB RAM, 120MB(Hard Disk)

Minimum System Requirement Pentium II 400Mhz, 128 MB RAM, 220MB(Hard Disk)

LCD 16 characters X 2 lines

Memory 4 Mbyte for ﬂash Memory , 20 Mbyte for DRAM

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