Samsung ML-2150 Manuel utilisateur

SERVICE

LASER PRINTER

ML-2150

ML-2151N

ML-2152W

Manual

LASER PRINTER 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

1-1

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 prevent

any damages to the 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 parts discretionary. Do not disassemble, fix, and rebuilt it. If you do, printer will not

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 LESPOSIZIONE 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 DENNADEL

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.

2-1

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.

Driver

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

M2 short).

Cotton Swab

Standard : For general home use, for medical ser-vice

Software(Driver) installation CD ROM

3Cleaning Equipments a IPA(Isopropyl

Alcohol)dry cloth or a soft stuff neutral

detergent

Spring Hook

Standard : For general use

Tweezers

Standard : For general home use, small type.

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.)

Keep your hands not to be touched when

you disassemble and reassemble PBA

ASS'Y, such as the main board, SMPS,

HVPS.

3-1

Samsung Electronics

Specifications

Service Manual

3. Specifications

Product specifications are subject to change without notice.See below for product specifications.

3.1 General Specifications

ITEM DESCRIPTION

Print Method Non-impact Electro-photography

Development system Non-Magnetic, Mono-Component Toner

Transfer system Conductive roller transfer

Fuser Unit(Toner fix) Pressure and Heating with Lamp

*Print Speed Up to 20 PPM in A4 size, IDC 5% pattern

Up to 21 PPM in A4 size, IDC 5% pattern

Resolution Up to 600 x 600 DPI

Up to 1200 x 1200 DPI

Source of Light Laser diode (LSU : Laser Scanner Unit)

Warm-Up Time Power-on boot : 50 seconds or less

First Print Time 13 seconds or less

Feed Method Cassette & Manual , Option Feeder(SCF)

Media Size 76mm * 128mm(3 * 5”) to 216mm * 356mm(8.5 *14”)

Media Thickness Cassette : 16 ~ 28 lb, Manual : 16 ~43lb

Dimension(W X D X H) 480 X 522 X 516mm / 18.9 X 20.6 X 20.3 inch (without option cassette)

Weight Net : 13 Kg

Gross : 15.5 Kg

**Acoustic Noise Stand by : Less than 35 dB

Printing: Less than 53 dB

Sleep mode : Background Noise

Power save mode Enable

Toner save mode Enable

Consumption Parts Pick Up Roller Up to 100,000 pages

Transfer Roller Up to 100,000 pages

Fuser Assembly Up to 100,000 pages

Optional Parts SCF Paper Capacity : 500 Sheets

NIC Ethernet 10/100 base TX

(Ml-2150:Optional Protocols : TCP/IP, SPX/IPX, Ethertalk, SNMP,

ML-2151N : Basic) HTTP1.1, DLC/LLC

16MB RAM Buffer for faster graphics performance

2MB Flash Memory for upgrade

Throughput : 200 ~ 300K TCP/IP

SDRAM DIMM 16, 32, 64, 128MB 100PIN SDRAM DIMM

Postscript Flash ROM 4MB

802.11b Wireless LAN IEEE802.3b supportT

(ML-2152W Basic) Speed : 11, 5.5, 2, 1 Mbps

Protocol : CSMA/CD

Operation range : 30m(Indoors), 150m(Outdoors)

4-1

Samsung Electronics

SUMMARY OF PRODUCT

Service Manual

4. Summary of Product

This chapter describes the functions and operating principal of the main component.

4.1 Printer Components

4.1.1 Front View

Toner cartridge

(needed to access the

control board to install

printer options)

(Face down)

(500-sheet paper feeder)

Control Panel

Top Cover

Paper level indicator

Control board cover

Multi-Purpose Tray

Output Support

Top output tray

Tray1

Optional Tray2

5-1

Samsung Electronics

Disassembly and Reassembly

Service Manual

5. Disassembly and Reassembly

5.1 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 remov-

ing 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. 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.

6-1

Samsung Electronics

ALIGNMENT & ADJUSTMENTS

Service

Manual

6. Alignment and Adjustments

This chapter describes the main functions for service, such as the product maintenance

method, the test output related to maintenance and repair, DCU using method, Jam removing

method, and so on. It includes the contents of manual.

6.1 How to use EDC (Engine Diagnostic Control) Mode

6.1.1 EDC Setup

• EDC(Engine Diagnostic Control, EDC will be used below) is considered to test and check whether each functions of

machinery and h/w module are normal or not.All of the test function are able to be controlled by the keys and LCD

window on the panel without any other kits.

• It’s developed for related engineers, not for users.

6.1.2 Entering/Exiting Method For EDC

<1> Outline

• The method for entering “EDC” mode is especial because it is intended for technicians and not users

• After Entering the mode, the message, “Engine EDC Mode” is displayed.

• On the mode, an engineer should press the “Menu Key” to search each function he would like to test.

• Turn the power off, after the test is entirely end.

<2> Usage

1. Power off the printer.

2. Pressing the “Select key”, power the printer on.

3. Keep pressing it until the message, “Engine EDC Mode” is shown on the panel.

4. Follow the usage for a function you would like to use.

5. Turn the power off, after the test is complete.

6.1.3 Usage & Function of Key on OPE

6.1.4 Usage & Function of LCD

Key Function Description Remarks

Menu Menu To enter the main Menu

Arrow (right) Search a Menu/ Input Data To search a Menu and input a data

Arrow (left) Search a Menu/ Input Data To search a Menu and input a data

Select Execute / Select To execute a function

Cancel Stop / Cancel To stop a function

Upper Level Move To move to the upper level

Line Characters Description Remarks

Top 16 Make engineers recognizing a test location.

[Main Menu] or [Function] is displayed.

Bottom 16 Make engineers recognizing a menu or function to be tested

A menu or function name displayed

7-1

Samsung Electronics

TROUBLESHOOTING

Service Manual

7. Troubleshooting

7.1 The cause and solution of Bad image

7.1.1 Vertical Black Line and Band

• Description 1. Straight thin black vertical line occurs in the printing.

2. Dark black vertical band occur in the printing.

Digital P inter

Check and Cause Solution

1. Damaged develop roller in the Toner car-

tridge. Deformed Doctor-blade or clean-

ing-blade.

2. Scratched surface of the discharge roller

in the toner cartridge.

3. Partly depression or deformation on the

surface of the transfer roller.

1. If causes 1 and 2 occur in the toner car-

tridge, replace the toner cartridge and try

to print out.

2. Replace the transfer roller if occurred as

No. 3.

7.1.2 Vertical White Line

• Description White vertical voids in the image.

Digita Printer

Check and Cause Solution

1. Foreign matter stuck onto the window of

internal lenses of LSU mirror.

2. Foreign matter or toner particles between

the toner cartridge roller and blade.

(In case the life of the toner cartridge has

been expired, white lines or light image

occur in front of the image.)

3. It may occur when Burr and foreign sub-

stances are on the window of the toner

cartridge frame.

4. If the fuser is defective, voids occur peri-

odically at the top of a black image.

5. It may occur when foreign substances

are on the OPC Drum.

1. Foreign matter stuck onto the window :

Clean the LSU window with recommend-

ed cleaner(IPA) Clean the window with a

clean cotton swab.

2.. Replace the toner cartridge.

3. No 3. : Remove the foreign matter and

burr of the exposure window.

(toner cartridge)

4. No. 4. : Open the front cover and check

ribs that corresponds to the position of

the voids. Remove if found.

5. If the problems are not solved, replace

the toner cartridge.

8-1

Samsung Electronics

EXPLODED VIEW & PARTS LIST

Service Manual

8. Exploded Views and Parts List

8.1 Main Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(8-2)

8.2 Base-Houshing Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(8-6)

8.3 Frame Assembly (0~32) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(8-7)

Frame Assembly (33~67) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(8-8)

8.4 Fuser Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(8-13)

8.5 Main Driver Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(8-16)

8.6 Exit Driver Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(8-17)

8.7 Regi Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(8-18)

8.8 SMPS Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(8-19)

8.9 Cassette Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(8-21)

8.10 SCF Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(8-23)

8-2

EXPLODED VIEW & PARTS LIST

Samsung Electronics

Service Manual

8.1 Main Assembly

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3-2

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3-4

3-5

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24 2

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