Samsung SF-830, SF-835P Service Manual

Digital Laser MFP

SF-830/SF-835P Msys830/Msys835P ML-920

SERVICE

Digital Laser MFP

MANUAL

Contents

1. Precautions

2. Speciﬁcations

3. Disassembly

4. T roubleshooting

5. Exploded Views and Parts List

6. Block Diagram

7. Connection Diagram

8. Dual Line Option

- 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. -

ELECTRONICS

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.

Samsung Electronics Digital Printing CS Group

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

2-2 Printer Speciﬁcations (SF-835P Only) ...............................................................page(2-2)

2-3 Facsimile Speciﬁcation........................................................................................ page(2-2)

2-4 Scanner Speciﬁcation .........................................................................................page(2-3)

2-5 Copy Speciﬁcation...............................................................................................page(2-3)

2-6 Telephone Speciﬁcation ...................................................................................... page(2-4)

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

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

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

3-2 Cover Rear Ass’y ............................................................................................... page(3-2)

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

3-4 Scanner Ass'y ....................................................................................................page(3-3)

3-5 OPE Ass'y..........................................................................................................page(3-4)

3-6 ADF Upper Ass'y................................................................................................page(3-5)

3-7 Guide Lower Ass'y .............................................................................................page(3-6)

3-8 Housing Lower Ass'y..........................................................................................page(3-7)

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

• MP-Tray ............................................................................................................................page(3-9)

• Duplex Ass’y.....................................................................................................................page(3-10)

• Transfer Roller Ass’y.........................................................................................................page(3-10)

3-10 Fuser Ass'y.......................................................................................................page(3-11)

3-11 Exit Ass'y..........................................................................................................page(3-12)

3-12 Cover Paper Exit Ass'y..................................................................................... page(3-13)

3-13 Drive Ass'y .......................................................................................................page(3-14)

3-14 SMPS...............................................................................................................page(3-15)

3-15 LSU.................................................................................................................. page(3-16)

3-16 Main Frame Ass'y.............................................................................................page(3-17)

• Cover Exit Rear ................................................................................................................page(3-18)

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

• Feed Ass'y ......................................................................................................................page(3-20)

• Pick Up Ass'y ..................................................................................................................page(3-20)

• Main PBA..........................................................................................................................page(3-21)

3-17 SCF Ass’y ........................................................................................................page(3-22)

Samsung Electronics

Contents

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(4-7)

4-4-4 MEMORY CLEAR......................................................................................... page(4-7)

4-4-5 MAINTENANCE............................................................................................ page(4-8)

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(4-12)

4-5 Identify Sale Date...............................................................................................page(4-13)

4-6 ENGINE TEST MODE........................................................................................page(4-14)

4-6-1 To enter the Engine Test Mode...................................................................... page(4-14)

4-6-2 Diagnostc......................................................................................................page(4-14)

4-6-3 ENGINE PRINT ............................................................................................page(4-14)

4-7 Troubleshooting..................................................................................................page(4-15)

4-7-1 Print Quality .................................................................................................page(4-15)

• Abnormal Image Printing and Defective Roller.................................................................page(4-17)

• No Image ..........................................................................................................................page(4-18)

• All Black............................................................................................................................page(4-20)

• Vertical White Line (Band).................................................................................................page(4-21)

• Dark Image .......................................................................................................................page(4-22)

• Background.......................................................................................................................page(4-23)

• Ghost ................................................................................................................................page(4-24

• Black Dot..........................................................................................................................page(4-25)

• Horizontal Band ................................................................................................................page(4-26)

• Irregular Density................................................................................................................page(4-27)

• White Spot ........................................................................................................................page(4-28)

• Trembling at the End When OHP Printing.........................................................................page(4-29)

• Poor Fusing Grade............................................................................................................page(4-30)

4-7-2 Malfunction................................................................................................... page(4-31)

• No Power (LCD NO display LED Off)................................................................................page(4-33)

• Fuser Error........................................................................................................................page(4-34)

• Paper Jam (Mis-Feeding).................................................................................................page(4-35)

• Paper Jam(Jam 1).............................................................................................................page(4-36)

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

4-7-3 Toner Cartridge and Drum Cartridge Service ..............................................page(4-38)

4-7-3-1 Signs and Measures at Poor toner cartridge ..........................................page(4-39)

4-7-4 The cause and solutions of bad environment of the software......................page(4-42)

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4-7-4-1 The printer is not working (1) .................................................................page(4-42)

4-7-4-2 The printer is not working (2)..................................................................page(4-42)

4-7-4-3 Abnormal Printing ................................................................................... page(4-43)

4-7-4-4 SPOOL Error ..........................................................................................page(4-43)

Contents

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

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

5-2 Scanner Ass’y Exploded View & Parts List ........................................................page(5-5)

5-3 ADF UpperAss’y Exploded View & Parts List.....................................................page(5-7)

5-4 Scan Lower Ass’y Exploded View & Parts List...................................................page(5-9)

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

5-6 OPE Ass’y Exploded View & Parts List..............................................................page(5-14)

5-7 Cassette Ass’y Exploded View & Parts List ....................................................... page(5-16)

5-8 Exit Ass’y Exploded View & Parts List................................................................page(5-18)

5-9 Feeder Ass’y Exploded View & Parts List ..........................................................page(5-20)

5-10 MP Ass’y Exploded View & Parts List ..............................................................page(5-22)

5-11 Base Frame Exploded View & Parts List..........................................................page(5-24)

5-12 Pick-up Ass’y Exploded View & Parts List........................................................page(5-25)

5-13 Drive Ass’y Exploded View & Parts List ...........................................................page(5-26)

5-14 Main Frame Ass’y Exploded View & Parts List.................................................page(5-28)

5-15 Fuser Ass’y Exploded View & Parts List .......................................................... page(5-30)

5-16 SCF Ass’y Exploded View & Parts List ............................................................ page(5-32)

5-17 Screw............................................................................................................... page(5-34)

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

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

8. Dual Line Option........................................................................... page(8-1)

8-1 Introduction ........................................................................................................page(8-1)

8-1-1 Master Board Role........................................................................................page(8-1)

8-1-2 Slave Board Role..........................................................................................page(8-1)

8-2 Speciﬁcation.......................................................................................................page(8-1)

8-3 Dual Line Board Connector Pin Assignment...................................................... page(8-2)

8-4 Troubleshooting of Dual Line Board ...................................................................page(8-3)

8-4-1 Troubleshooting Flow Chart ..........................................................................page(8-3)

8-4-2 Dual Line Board error.................................................................................... page(8-3)

8-4-3 Modem interface error................................................................................... page(8-4)

8-4-4 LIU interface error.........................................................................................page(8-5)

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Precautions

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 equipment, such as auxiliary connectors, etc. Such alterations and modiﬁcations will void the manufacturer’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.

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 replacement 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.

6. Observe the original lead dress, especially near sharp edges, AC, and high voltage power supplies. Always inspect for pinched, out-of-place, or frayed wiring. Do not change the spacing between components and the printed circuit board.

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1-1

Precautions

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” components.

The techniques outlined below should be followed to help reduce the incidence of component damage caused by static electricity.

CAUTION : Be sure no pow er is applied to the chassis

or circuit, and observe all other safety precautions.

2. 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.

3. 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.

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 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 bef ore installing it. Most replacement ESDs are packaged with all leads shorted together by conductive foam, aluminum f oil, 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 f oot from a carpeted ﬂoor , can generate static electricity sufﬁcient to damage an ESD.

1-3 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 manufacturer.

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 manufacture’s instructions.

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Precautions

1-4 Tools 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.

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 consumables(toner cartridge) supplied by Samsung Electronics. (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

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Note : Mind your hands not to be touched when you

disassemble and reassemble PBA ASS'Y, such as the main board, SMPS, HVPS.

1-3

Speciﬁcation

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 (22.0 X 17.0 X 18.1 inches) 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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2-1

Speciﬁcation

2-2 Printer Speciﬁcations (SF-835P Only)

Item Description

Printing Method Laser Scanning Unit + Electro Photography Speed Single Side : 12 PPM

(Letter Size, 5% Character Pattern)

Duplex : 7.5 IPM(Images/Min) (Letter Size, 5% Character Pattern) Source of Light LSU(Laser Scanning Unit) Duplex Printing Yes(Default) Resolution(Horizontal X Vertical) True 600 X600 DPI , 1200 DPI Class Feed Method Cassette Type , By Pass Tray,

ADF(Automatic Document Feeder) Feed Direction FISO(Front-In Side-Out) Paper Capacity(Input) Cassette : 550 Sheets

By Pass Tray : 100 Sheets(based on 75g/ß Paper Capacity(Output) Face Down : 250 Sheets Effective Print Width 203 ± 1mm (8 inch)

≥ , 20lb)

2-3 Facsimile Speciﬁcation

Item Description

Standard Recommendation ITU-T Group3(ITU : International Telecommunications Union) Application Circuit PSTN or behind PABX

(PSTN : Public Switched Telephone Network.

PABX : Private Automatic Branch Exchange) Data coding(Compression) MH/MR/MMR/JBIG(Transmission) Modem speed 33600/28800/14400/12000/9600/7200/4800/2400 bps Transmission Speed Approximately 3 sec(33,600 bps) Effective Scanning Width 8.2 inches(208 mm) Halftone 256 Levels Paper Capacity(Input) ADF(Automatic Document Feeder) : 50Sheets(75g/ß FAX Mode Standard /Fine/Super Fine Memory 8 MB

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≥ )

2-4 Scanner Speciﬁcation

Item Description

Type Sheetfed(with ADF) Speed Mono : 1.25 msec/line, Color : 5 msec/line Device Color CIS (Contact Image Sensor) Module Interface IEEE1284(ECP Support)

USB(without HUB Mode) Compatibility TWAIN Standard , WIA Optical Resolution(H X V) 300 X 300 dpi Halftone 256 Levels Effective Scan width 8.2 inches(208 mm)

Speciﬁcation

2-5 Copy Speciﬁcation

Item Description

Mode B/W Quality Text/Photo/Mixed

Mono Copy Speed

Optical Resolution (H x V) 300 X 300 dpi Multi Copy 999 pages Maximum Original Size Legal Maximum Page Size Legal Paper Type Selection Plain , Legal , Cardstock , Transparency Zoom Range ADF : 25~200 %(1% Step)

NOTE : (1) Speed claims based on the test chart : Letter size. SDMP : Single Document Multiple Printout MDSP : Multiple Document Single Printout

(1)

ADF (MDSP) : Text/mixed : Approx. 7 cpm : Photo : Approx. 3 cpm

Samsung Electronics

2-3

Speciﬁcation

2-6 T elephone Speciﬁcation

Item Description

1Touch Dial 50 EA(1~25 , shift key + 26~50) Speed Dial 200 EA Tone/Pulse Tone only user modeTone/Pulse selectable in tech mode.

2-7 Consumables

Item Description

Type Separate type

(Toner Cartridge / Drum Cartridge)

Life Toner Cartridge 6,000 sheets

( 5% coverage pattern, simplex normal mode )

Drum Cartridge 15,000 sheets

(simplex normal mode )

Samsung Electronics2-4

Disassembly and Reassembly

3. Disassembly and Reassembly

3-1 General Precautions on Disassembly

When you disassemble and reassemble components, you must use extreme caution. The close proximity of cables to moving parts makes proper routing a must. If components are removed, any cables disturbed by the procedure must be restored as close as possible to their original positions. Before removing any component from the machine, note the cable routing that will be affected.

Whenever servicing the machine, you must perform as follows:

1. Check to verify that documents are not stored in memory.

2. Unplug the power cord.

3. Use a ﬂat and clean surface.

4. Replace only with authorized components.

5. Do not force to remove or planten plastic-material components.

6. Make sure all components are in their proper position.

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3-1

Disassembly and Reassembly

3-2 Cover Rear Ass’y

1. Open the Side cover. 2. Remo ve he f our screws securing the Cov er Rear Ass’y.

Cover Rear Ass’y

3-3 Rear Cover

1. Remo ve the six screws securing the Rear Cover . 2. Separate the Rear Cover from the Base Frame and Scanner Ass'y.

3-2

Samsung Electronics

3-4 Scanner Ass'y

Disassembly and Reassembly

1. Before you remove the Scanner Ass'y,

you should remove:

- Cover Rear Ass’y (see page 3-2)

- Rear Cover (see page 3-2)

2. Remove the six screws and take out the Shield

Main Upper.

4. Open the Side Cover Ass'y ﬁrst to open the Front Cover, in the other words, close the Front Cover ﬁrst to Assembly it.

5. Unplug the one connector from the Main Board and remove two screws.

3. Remove the three screws, as shown below.

6. Pull up the Scanner Ass'y in the direction of arrow.

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3-3

Disassembly and Reassembly

3-5 OPE Ass'y

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

- Rear Cover (see page 3-2)

- Scanner Ass'y (see page 3-3)

2. Remove the two screws securing the Scanner Ass'y.

3. Pull the OPE Ass'y as shown below.

5. Remove nine screws securing the OPE PBA to the OPE Cover.

6. Remove the Contact Rubber from the unit.

4. Unplug the two connector from the OPE Ass'y.

3-4

7. Remove the Key Pad from the unit.

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3-6 ADF Upper Ass'y

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

- Rear cover (see page 3-2)

- Scanner Ass'y (see page 3-3)

- OPE Ass'y (see page 3-4)

Disassembly and Reassembly

3. Remove the Ground Cable and unlatch the Link Tray from the Cover Gear, as shown below.

Cover Gear

2. Open the ADF Upper Ass'y.

Link Tray

4. Remove the ADF Upper Ass'y, as shown below.

ADF Upper Ass’y

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3-5

Disassembly and Reassembly

3-7 Guide Lower Ass'y

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

- Rear Cover (see page 3-2)

- Scanner Ass'y (see page 3-3)

- OPE Ass'y (see page 3-4)

- ADF Upper Ass'y (see page 3-5)

2. Remove the four serews securing the Guide Lower Ass'y.

4. Pull the Input Tray and remove it.

Input Tray

5. Take out the Housing Upper ADF, as shown below.

3. Push the

part to the arrow direction (to the inner), unlatch the part to the arrow direction and remove Guide Lower Ass'y.

Guide Lower Ass’y

Housing Upper ADF

3-6

Samsung Electronics

3-8 Housing Lower Ass'y

Disassembly and Reassembly

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

- Rear Cover (see page 3-2)

- Scanner Ass'y (see page 3-3)

- OPE Ass'y (see page 3-4)

- ADF Upper Ass'y (see page 3-5)

- Guide Lower Ass'y (see page 3-6)

2. Unplug the tw o connectors and FFC Cable from the Scan Board.

FFC Cable

4. Unlatch the Exit Roller gear part and remove it, as shown below.

Exit Roller

5. Unlatch the Scan Roller gear part and remove it, as shown below.

Scan Roller

3. Remove the seven screws securing the ADF Lower Ass'y.

6. Unlatch the ADF Roller gear part and remove it, as shown below.

ADF Roller

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3-7

Disassembly and Reassembly

7. Pull the both side and remo ve the Pic k up Roller , as shown below.

Pick up Roller

8. Remove the two screws and pull the CIS Cable. Take out the CIS Ass'y.

10. Remove the four screws securing the ETC Motor Ass'y and remove it.

11. Unlatch the Cover Switch and remove it, as shown below.

Cover Switch

CIS Ass’y

9. Remo ve the one scre w securing the CIS Brack et and take out the CIS.

CIS

CIS Bracket

12. Unlatch the both side and remove the Scan Board.

3-8

Samsung Electronics

3-9 Side Cover Ass'y

Disassembly and Reassembly

1. Remove the two screws to release the Stopper(Main Frame side) securing the Side Cover to the Main Frame.

* MP-Tray

1. Pull the both side of the part to dissemble it.

2. Completely open the Side Cover Ass’y, and after pull the part to the arrow direction (to the top), pull the part to the arrow direction (inner side)

2. As the part, make the Tray-Case and the Tray-Link in rectangular position to dissemble the Tray-Case from the T ra y Link. The Tray Link locates at an angle of 45˚ from the Side Cover Ass’y and then remove the Tray Link.

MP Tray

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Tray Link

Tray-Case

3-9

Disassembly and Reassembly

* Duplex Ass’y

1. Unite the part and home to the projection part of the Side Cover assembly, and widen them from each other to dissemble the Side Cover Ass’y.

Deplex Ass’y

* Transfer Roller Ass’y

1. Take out the Transfer Roller, as shown below.

3-10

Samsung Electronics

3-10 Fuser Ass'y

Disassembly and Reassembly

1. Before you remove the Fuser Ass'y, you should be power off and remove:

- Side Cover Ass'y (see page 3-9)

2. Remove the one screw and take out the Cover Sheet Connector.

3. Unplug the one connector.

6. Remove the two screws and take out the Halogen Lamp.

Halogen Lamp

5. Remove the four screws and take out the Thermostat.

Thermostat

4. Remo v e the three scre ws and tak e out the Fuser Ass'y.

Samsung Electronics

7. After remove the two screw and open the Lower Ass’y froward tack out the Heat Roller Ass’y from Upper Fuser Ass’y.

Heat Roller

3-11

Disassembly and Reassembly

3-11 Exit Ass'y

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

- Rear Cover (see page 3-2)

- Cover Rear Ass’y (see page 3-2)

- Scanner Ass'y (see page 3-3)

- Side Cover Ass'y (see page 3-9)

2. Remove three screws, unplug four connectors and unlatch the Dummy Base Frame, as shown below.

3. Pull the Exit Ass'y and remove it.

3-12

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3-12 Cover Paper Exit Ass'y

Disassembly and Reassembly

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

- Rear Cover (see page 3-2)

- Cover Rear Ass’y (see page3-2)

- Scanner Ass'y (see page3-3)

2. Remove two screws and Co ver Paper Exit Ass'y, as shown below.

Cover Paper Exit Ass’y

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3-13

Disassembly and Reassembly

3-13 Drive Ass'y

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

- Rear Cover (see page 3-2)

- Shield Main Upper (see page 3-2)

2. Unplug the two connectors.

(Main Motor:9pin, Duplex Solenoid : 2pin)

3. Remo ve the one screw and take out the Fan and Dust Fan.

Fan

Dust Fan

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

Drive Ass’y

3-14

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3-14 SMPS

Disassembly and Reassembly

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

- Rear Cover (see page 3-2)

- Cover Rear Ass’y (see page 3-2)

- Scanner Ass'y (see page 3-3)

- Side Cover Ass'y (see page 3-9)

- Exit Ass'y (see page 3-12)

- Cover Paper Exit Ass'y (see page 3-13)

2. Remove three screws and take out the Shield SMPS Upper.

3. Unplug the all connectors.

4. Remove the SMPS, as shown below.

SMPS

Samsung Electronics

3-15

Disassembly and Reassembly

3-15 LSU

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

- Rear Cover (see page 3-2)

- Cover Rear Ass’y (see page 3-2)

- Scanner Ass'y (see page 3-3)

- Side Cover Ass'y (see page 3-9)

- Exit Ass'y (see page 3-12)

2. Unplug the two connectors.

3. Remo ve the three screws and tak e out the LSU.

LSU

3-16

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3-16 Main Frame Ass'y

Disassembly and Reassembly

1. Bef ore you remove the LSU, you should remove:

- Rear Cover (see page 3-2)

- Cover Rear Ass’y (see page 3-2)

- Scanner Ass'y (see page 3-3)

- Side Cover Ass'y (see page 3-9)

- Exit Ass'y (see page 3-12)

- Cover Paper Exit Ass’y(see page 3-13)

- SMPS (see page 3-15)

- LSU (see page 3-16)

2. Remove one screw in the Channel Base Frame from the bellow section of the Cover Dummy Lower, and then remove the rest of the ﬁve screws to dissemble the Dummy Scan Lower.

Dummy Base Frame

Cam Jam Remove

4. Unplug the all connectors.

Front Cover

3. Remove the Locker Deve.

5. Remove the seven screws and take out the Main Frame Ass'y.

Main Frame Ass’y

Cover Motor Bracket

Lock Deve

Samsung Electronics

3-17

+ 170 hidden pages