Samsung All In One Printer Ml 1651n User Manual

LASER PRINTER

ML-1650Series

ML-1650 / ML-1651N

Manual

SERVICE

LASER PRINTER

CONTENTS

1. Precautions

2. Specifications

3. Disassembly and Reassembly

4. Troubleshooting

5. Exploded Views and Parts List

6. Block Diagram

7. Connection Diagram

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

Precautions

1. Precautions

Please read the following carefully to prevent any accidents and not to damage the unit during service.

1-1 Safety Precautions

Read each caution carefully:

Especially mind the safety on the part with

this mark.

1. Do not use this printer near water or when exposed to

inclement weather.

You must use regular parts described in specifi-

cations for the parts inflammable and where the

current can be flown. Otherwise any hazard

such as an electric shock or a fire could occur.

2. Do not place this printer on an unstable cart, stand or

table; the product may fall, causing serious damage

to the product.

3. Slots and openings in the cabinet are provided for

ventilation. To ensure reliable operation and to protect

the printer from ever heating, do not block or cover

any of these openings. Do not place the printer in an

enclosure unless the enclosure provides adequate

ventilation.

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.

4. Never push objects of any kind into the printer through

the cabinet ventilation slots as they may touch dan-

gerous high voltage points, create short circuits,

cause a fire, or produce an electrical shock. Never

spill liquid of any kind on the printer.

Class 1 laser product

Luokan 1 laserlaite

Klass 1 laser apparat

5. Do not place the printer in a location where someone

may trip on the cords.

Allonpituus 770-795nm

Teho 0.3mW±0.03mW

6. Select a work surface that is large enough to hold the

printer.

7. Position the printer within six feet of the computer and

within five feet of an electrical outlet.

INVISIBLE LASER RADIATION WHEN

THIS COVER OPEN. DO NOT OPEN

THIS COVER.

CAUTION

8. Operate this printer using the power source (110V,

220V, etc) indicated on the marking label. If you are

not sure of the type of power source available, consult

your dealer or local power company.

UNSICHTBARE LASERSTRAHLUNG,

WENN ABDECKUNG GEOFFNET.

NIGHT DEM STRAHL AUSSETZEN.

VORSICHT

REYONNEMENT LASER INVISIBLE EN CAS

D’OUVERTURE. EXPOSITION DANGERUSE AU

FAISCEAU.

ATTENTION

9. If you need to use an extension power cord with this

printer, make sure that it uses a three-wire grounded

cord and that the total ampere ratings for all of the

products using the extension do not exceed the

extension cord ampere rating. Also, make sure that

the total of all products plugged into the wall outlet

does not exceed 15 amperes.

RADIAZIONE LASER INVISIBLE IN CASO DI

APERTURA. EVITARE L’ESPOSIZONE LA FASCIO.

ATTENZIONE

REDIACION LASER INVISIBLE CUANDO SE

ABRE. EVITAR EXPONERSE AL RAYO.

PRECAUCION

10. Do not allow anything to rest on the power cord or

data communications cable.

CAUTION : Avoid exposure to invisible laser radiation when the

development unit is not installed.

11. Unplug this printer from the wall outlet before clean-

ing. Do not use liquid cleaners or aerosol sprays. Use

a damp cloth for cleaning.

12. Do not touch the surface of the photo-sensitive drum

as marks or scratches may impair print quality.

13. Do not expose the drum unit to direct light for pro-

longed periods.

14. Use only standard papers, OHP films, and approved

envelopes. Feed OHP films though the manual feed

slot only. See specifications for approved papers and

envelopes.

15. Other than replacing consumables such as paper

and toner, refer all questions to qualified service per-

sonnel.

Samsung Electronics

1-1

Precautions

1-2 Precautions on Disassembly and Reassembly

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.

7. When disassembling, assembling, also observe small

components are located in place.

8. If you uncover and turn the machine over to replace

some parts, toner or paper particles may contaminate

the LSU window. Protect the LSU window with clean

paper.

Please do the following before disassembling for a repair

or replacement of parts.

Releasing Plastic Latches

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 replac-

ing 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.

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.

Samsung Electronics

1-2

Precautions

1-3 Tools for Troubleshooting

The following tools are recommended for safe and smooth troubleshooting described in this service manual.

DCU(Diagnostic Control Unit)

Driver

1 _{Standard: Test equipment to diagnose the Laser}

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

M2 long, M2 short).

printer supplied by Samsung Electronics.

Pinset

Standard: For general home use, small type.

Cotton Swab

Standard: For general home use, for medical ser-

DVM(Digital Volt Meter)

2 _{Standard: Indicates more than 3 digits.}

vice.

Ground

Cleaning Equipments a IPA(Isopropyl

7 _{Alcohol)dry cloth or a soft stuff neutral}

detergent.

Software(Driver) installation CD ROM

Electronic Scale

3 _{Standard: Equipment to check the weight of con-}

sumables(toner cartridge) supplied by Samsung

Electronics. (The gram unit can be measured.)

Mind your hands not to be touched when

you disassemble and reassemble PBA ASS'Y,

such as the main board, SMPS, HVPS.

Note

Samsung Electronics

1-3

Specifications

2. Specifications

ML-1650

ML-1651N

Engine

Speed

17 PPM(Letter) , 16PPM(A4)

Resolution

First Print Time

1200 * 1200

Tray 1 : Less than 14 seconds

Tray 2 : Less than 17 seconds

Less than 40 seconds

Warm-Up Time

Power Consump.

Dimension(W * D * H)

Weight

Print : 300 W, Sleep mode : Less than 20 W

361 x 409 x 294.5 mm

12.4 Kg/27.3lb (SET)

Acoustic Noice

Power Rating

Stand by : Less than 35 dB, Operating : Less than 49dB

AC 100~127V , 50 Hz

AC 220~240V , 60 Hz

Controller

Processor

Memory

Power PC (166 MHz)

Standard : 16Mbyte

RAM

Option DIMM Module ; 16, 32,64,128M byte

4 Mbyte (16M bit x 2 : Program) Flash Memory

512 bytes

ROM

EEPROM

Emulation

Interface

PCL6, PS 3(Option)

IEEE1284, USB, Network

OS Support

Windows 95/98/2000/Me/NT,

Linux(Radhat 6.0 ↑), iMac(Mac OS 8.0 ↑)

N/W

Option

Default

Input

550 sheets (75g/m2)

100 sheets (75g/m2)

20 sheets (OHP)

10 sheets (Letter, card)

25 sheets (Label)

250 sheets

Cassette

MP Tray

Paper

Output

Face down

Face up

100 sheets

Media Type

A4, Letter. Legal, Executive, B5, A5, Folio, 7 3/4(Monarch),

#10, DL, C5, C6, B5

Single Cartridge

8,000 sheets (Set : 4,000 sheets)

60,000 sheets

Type

Toner

Life

Cartridge

Pick up Roller

Feed Roller

Transfer Roller

Fuser

60,000 sheets

125,000 sheets

40,000 sheets

Key & LED

LCD

3Key, 4LEDs

User interface

Toner Save

Reprint

YES

YES(Button)

Samsung Electronics

2-1

Specifications

ML-1650

ML-1651N

Environment

Operation Environment

Storage Environment

10 ~32˚c (50˚F ~ 90˚F)

20 ~ 80 % RH

Temperature

Humidity

-200 ~40˚c (4˚F ~ 104˚F)

10 ~90 % RH

Temperature

Humidity

Network Operating Systems

Windows 95/98 and Windows NT (3.51, 4.x )

Netware (3.x, 4.x), NDS and Bindery Mode /RPRINT,

PSERVER Mode

UNIX and Apple Talk

Network

Network Protocols Supported

TCP/IP : Windows 95/98, Windows NT, UNIX

IPX/SPX : Windows 95/98, Novell Netware

DLC/LLC : Windows 95/98, Windows NT

Ethertalk : Apple Talk

SNMP : for Network Printer Administration

Ethernet 10/100 BaseTX (Auto Negotiation)

Samsung’s Admin. Software Utility (SyncThru)

SNMP and MIB-II Support,

Network Card Interface

Network Management S/W

GUI based utility for Windows Systems and Test based

utility for UNIX Systems

HTTP server for web browser based network manage-

ment (can manage NPC and printer options on Web

Browser)

Samsung Electronics

2-2

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. Remove the paper cassette(s), and the print cartridge. Do not expose the cartridge to direct room light or

sun light, and be careful not to scratch the drum surface.

2. Turn the power switch off.

3. Unplug all the cables from the printer.

4. Replace with only an authorized component.

5. Do not force to open or fasten a plastic material component.

6. Be careful no obstacles are included when you reassemble components.

7. When you reassemble components, be careful small size components are located in place.

8. If you turn the machine over to replace some parts, toner or paper particles may contaminate the LSU

window. Protect the LSU window with clean paper.

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.

Samsung Electronics

3-1

Disassembly and Reassembly

3-2 Transfer Roller

1. Open the printer cover.

3. Hold the cap at the both end of the roller, then

remove the roller.

2. Remove the cap.

Samsung Electronics

3-2

Disassembly and Reassembly

3-3 Controller Board

1. Remove two screws and remove the

controller cover.

2. Remove five screws securing the board and

unplug all connectors, and then take the

controller board out of the printer.

Samsung Electronics

3-3

Disassembly and Reassembly

3-4 Pickup Assembly

1. Turn the printer upside down. Remove four

screws, then remove the bar cross bottom.

4. Take the assembly out.

Push the solenoid if

you have difficulty to

remove the pickup

assembly.

2. Remove three screws from the left base

bracket, and take the bracket out.

5. Check the pickup rubber wear. If the rubber is

heavily worn, replace it with a new one.

3. Remove four screws securing the pickup

assembly.

Squeeze this tab to

remove the rubber.

Samsung Electronics

3-4

Disassembly and Reassembly

3-5 Main Cover

1. Remove two screws and remove the controller

cover.

4. Remove two screws securing the main cover.

2. Remove two screws at the back of the printer and

unplug one connector from the board, then open

the rear cover.

5. Unlatch the front ends of the cover.

3. Open the printer cover, and open the MP tray.

|6. Slide the main cover upward, out of the printer.

Note that the power

switch and the power

connecter are properly

released when you

remove the cover.

Samsung Electronics

3-5

Disassembly and Reassembly

3-6 MP (Multi-Purpose) Tray

1. Before you remove the MP tray, you should remove:

-Main Cover (see page 3-5)

2. Remove the stoppers securing the MP tray.

3-7 Exit Assembly

1. Before you remove the exit assembly, you

should remove:

3. If you want to remove the roller shaft, unlatch

both ends of the shaft and take it out.

-Main Cover (see page 3-5)

2. Remove the exit tray in the direction of arrow.

4. If you want to remove the exit roller, squeeze

the bottom of the roller and take it out.

Samsung Electronics

3-6

Disassembly and Reassembly

3-8 LSU

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

-Main Cover (see page 3-5)

-Exit assembly (see page 3-7)

2. Remove five screws, and remove the LSU. Then

unplug two connectors from the LSU.

3-9 HVPS board

1. Before you remove the HVPS board, you

should remove:

-Main Cover (see page 3-5)

2. Remove four screws and take the HVPS

board out.

Samsung Electronics

3-7

Disassembly and Reassembly

3-10 Fan

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

-Main Cover (see page 3-5)

3. Remove one screw, and remove the fan.

Then unplug one connector.

2. Remove two screws securing the connector

cover and harness bracket from the gear

bracket.

3-11 Solenoid

1. Before you remove the solenoid, you should

remove:

-Main Cover (see page 3-5)

2. Remove two screws, and remove the

solenoid. Then unplug one connector.

Samsung Electronics

3-8

Disassembly and Reassembly

3-12 Drive Assembly

1. Before you remove the drive assembly, you

should remove:

4. If you want to remove the step motor, remove

four screws securing the step motor from the

motor bracket and unplug two connector from

the motor.

-Main Cover (see page 3-5)

-Fan

(see page 3-9)

2. Remove four screws securing the drive

assembly from the gear bracket and unplug

one connector from the motor, and then take

the drive assembly out.

3. If you want to remove the motor assembly from

the drive assembly, remove five screws

securing the motor assembly to the gear

bracket.

5. If you want to remove the motor joint PCB,

remove two screws securing the motor joint

PCB from the gear bracket and unplug one

connector from the motor joint PCB.

Samsung Electronics

3-9

Disassembly and Reassembly

3-13 Fuser Assembly

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

-Main Cover (see page 3-5)

♦ To remove the thermistor from the fuser

assembly :

Remove one screw, and release the wire from the

three holders, and then take the thermistor out.

2. Remove four screws and unplug one conne-

ctor, and then remove the fuser assembly.

♦ To remove the thermostat from the fuser

♦ To remove the halogen lamp from the fuser

assembly

assembly :

Remove two screws and take the thermostat out.

Remove two screws and take the halogen lamp

out of the fuser assembly.

Note When you reassemble the halogen

lamp, make sure that it is inserted into

the slot properly.

Samsung Electronics

3-10

Disassembly and Reassembly

3-14 Guide Feed & Erase Lamp

1. Before you remove the guide feed & PTL, you

should remove:

4. Remove the guide feed& erase PTL.

-Main Cover (see page 3-5)

2. Release the latches on the erase lamp from the MPF

ASS’Y and unplug one connector, then remove the

PTL.

3. Remove three screws and raise the guide feed in the

direction of arrow.

Samsung Electronics

3-11

Disassembly and Reassembly

3-15 MPF Assembly and Miscellaneous on MPF Assembly

1. Before you remove the MPF assembly, you

should remove:

♦ To replace the nockup plate :

1. Turn the gear shown in the square in the

direction of arrow to release the nockup plate.

-Main Cover (see page 3-5)

2. Unplug two connectors and remove five

screws, and then take the MPF assembly out.

2. Remove the spring , then release the right end

of the plate.

♦ To replace the pickup roller :

1. Remove the e-ring.

3. Remove the nockup plate.

2. Remove the roller.

Samsung Electronics

3-12

Disassembly and Reassembly

♦ To replace the Paper Empty (PE) sensor :

♦ To replace the pickup holder and the Adjust

End MP:

1. Release the wire from the two holders.

1. Remove two screws and remove the MPT

bracket.

2. Raise the pickup holder in the direction of

arrow.

2. Unlatch the PE sensor, then take it out.

3. Remove the pickup holder.

4. Remove the Adjust End MP

Samsung Electronics

3-13

Disassembly and Reassembly

3-16 Engine Board and Miscellaneous

1. Before you remove the engine board, you should

remove:

4. While you push the latch to release the PCU shield,

take the PCU shield out of the printer.

-Main Cover (see page 3-5)

2. Remove six screws from the left and the right base

bracket and take them out.

3. Remove eight screws securing the PCU shield and

remove two screws securing the SCF connector, and

then take the PCU shield out of the printer.

5. Unplug all connectors from the PCU shield, and

remove the shield.

Samsung Electronics

3-14

Disassembly and Reassembly

♦ To replace the exit board :

♦ To replace the Cap sensor :

Unplug one connector from the controller board

and remove one screw securing the board.

Then release the wire from two holders and

take the board out.

Remove two screws and take it out.

♦ To replace the fuser sensor :

♦ To replace the actuator empty :

Remove two screws and take it out.

Take the sensor out while you squeeze the both

ends of the sensor.

Samsung Electronics

3-15

Disassembly and Reassembly

♦ To replace the actuator feed

♦ To remove the transfer guide :

1. Turn the mechanism back and push down the

points as shown to unlatch the actuator feed.

Remove three screws and take the guide out.

2. Turn the unit over again, and remove the

actuator feed.

Samsung Electronics

3-16

Troubleshooting

4. Troubleshooting

4-1 How to use DCU

4-4 The cause and solution of the malfunction

4-1-1 DCU Setup......................................Page(4-2)

4-1-2 Code ................................................Page(4-2)

4-1-3 Self Diagnostic Mode......................Page(4-3)

4-1-4 Self Test Button ................................Page(4-4)

4-1-5 Paper Path Layout...........................Page(4-4)

4-1-6 DCU Panel .......................................Page(4-5)

4-4-1 All LEDs blinking (Fuser Error)........Page(4-17)

4-4-2 All LEDs blinking (SCAN ERROR) .Page(4-17)

4-4-3 Not function of the gear of the fuser due to

melting away.....................................Page(4-18)

4-4-4 Paper Empty.....................................Page(4-18)

4-4-5 Paper Empty without indication.......Page(4-18)

4-4-6 Cover Open......................................Page(4-19)

4-4-7 No lamp on when the cover is open

4-2 The cause and solution of Bad image

...........................................................Page(4-19)

4-2-1 Vertical Black Line and Band ..........Page(4-6)

4-2-2 Vertical White Line ...........................Page(4-6)

4-2-3 Horizontal Black Band .....................Page(4-7)

4-2-4 Black/White Spot..............................Page(4-7)

4-2-5 Light Image.......................................Page(4-8)

4-2-6 Dark Image or a Black.....................Page(4-8)

4-2-7 Uneven Density................................Page(4-9)

4-2-8 Background ......................................Page(4-9)

4-2-9 Ghost (1)...........................................Page(4-10)

4-2-10 Ghost (2)..........................................Page(4-10)

4-2-11 Ghost (3)..........................................Page(4-11)

4-2-12 Ghost (4) .........................................Page(4-11)

4-2-13 Satins on the Face of Page............Page(4-11)

4-2-14 Satins on Back of Page..................Page(4-12)

4-2-15 Blank Page Print out (1) .................Page(4-12)

4-2-16 Blank Page Print out (2) .................Page(4-12)

4-4-8 Defective motor operation ...............Page(4-20)

4-4-9 No Power..........................................Page(4-20)

4-4-10 Vertical Line Getting Curved .........Page(4-21)

4-5 Toner Cartridge Service

4-5-1 Precautions on Safe-keeping of Toner Cartridge

..........................................................Page(4-22)

4-5-2 Service for the Life of Toner Cartridge

..........................................................Page(4-22)

4-5-3 Service for Judgement of Inferior Expendables

and the Standard of Guarantee .....Page(4-22)

4-5-4 Signs and Measures at Poor toner cartridge

..........................................................Page(4-23)

4-6 The cause and solutions of bad environment

of the software

4-6-1 The printer is not working (1)...........Page(4-26)

4-6-2 The printer is not working (2) .........Page(4-27)

4-6-3 Abnormal Printing.............................Page(4-28)

4-6-4 SPOOL Error ...................................Page(4-29)

4-3 The cause and solution of the bad discharge

4-3-1 Wrong Print Position.......................Page(4-13)

4-3-2 JAM 0...............................................Page(4-13)

4-3-3 JAM 1...............................................Page(4-14)

4-3-4 JAM 2...............................................Page(4-14)

4-3-5 Multi-Feeding...................................Page(4-15)

4-3-6 Paper rolled in the fuser .................Page(4-15)

4-3-7 OPC.................................................Page(4-16)

Samsung Electronics

4-1

Troubleshooting

4-1 How to use DCU

4-1-1 DCU Setup

You can examine the malfunction of the printer. To perform DCU, open the front discharge cover and leave the connect

the harness wire(10 pin/4 pin) to the CN10(4 pin) of the Main control board.

4-1-2 Code

Connect DCU to the printer and turn the power on. It show 7 LED on the panel and each code tells the function of the

printer.

Normal Code

While printing or warming up, it indicate the position of the paper

Warm up

The printer is on, the cover is open or close.

00-05

Ready(kind of paper) The printer is ready, the paper is detected when the first paper is printed.

00: Legal ,01: Letter ,02: A4 ,03: EXEC ,04: B5 ,05: Folio, 06: A5/A6

20, 21, 22 Print Start

The engine controller received the print order from the video controller.

20: 1st, 21: MP, 22: SCF

Feed Sensor On

The paper is passing out of the Feed Sensor.

The paper has passed out of the Feed Sensor.

The paper has passed out of Exit Sensor.

Feed Sensor off

Paper Out

Sleep Mode

The fuser power turned off to minimize the power consumption.

Error Code

When detecting the malfunction, the printing is stopped to indicate error code.

60, 62, 68 Fuser Error The error in the fuser occurred. There is a short circuit in the thermistor and the

thermostat while printing, Low Temperature Error occurs.

• 60: Open Fuser Error

• 62: Low Heat Error

• 68: Over Heat Error

Cover Open

CRU Error

The Printer Cover is open.

The Toner Cartridge not installed,

No Paper

No paper in the paper cassette.

Paper Jam 0

Paper Jam 1

Paper Jam 2

Out Bin Full

LSU Not Ready

The front part of paper is jammed between pickup unit and Feed sensor.

The front part of paper is jammed between the Discharge sensor and Feed sensor.

The front part of paper is jammed just after passing through the discharge sensor.

The Out bin is filled with paper.

LSU Scanner Motor not ready or Hsync signal not output.

Samsung Electronics

4-2

Troubleshooting

4-1-3 Self Diagnostic Mode

If Error code occurs due to malfunction of the printer, perform Self Diagnostic Mode to solve the problem.

The printer works only in the self-test mode to solve the malfunction problem.

To enter the self-test mode, turn the power on pressing the buttons of [Down], [Shift] and [Stop] at the same time.

Release the button within 2 or 3 seconds if 78 shows in the DCU. If 00 shows in the DCU, press the button [Up] or [Shift]

to select the self+test , and press the button of [Enter] to operate. To stop, press the button of [shift] and [Enter] together.

Main Motor Operating System

Only the main motor is in operation.

Main High Voltage On(THV-)

-1400 voltage output by MHV terminal.

Transfer High Voltage(-)On(THV-)

Caution : High voltage probe should be used.

-1000 voltage output by MHV terminal.

Transfer High Voltage (+)Reference on (THV +)

+800 voltage output by MHV terminal.

DEV/supply High Voltage : DEV/Supply High Voltage Test.

Caution

High voltage probe should be used.

Caution : High voltage probe should be used.

The left one of the three LEDs in the self-test panel is on when DEV high voltage Supply high voltage output

by each HV terminal(-500V). Press the [Up] button to switch the voltage. The middle and right one of the three

LEDs are on and -650 voltage output by DEV HV terminal.

Caution : High voltage probe should be used.

LSU Operating System

The scanning motor of LSU is in operation, the right LED of the three buttons on. Press the [Up] button to

Check LD. LD is functioning and the middle button is on. If the LD is normal, all LEDs are on.

Pickup clutch on

The Solenoid in the printer is in operation. To stop the operation, Press the button [shift] and [Enter] together.

Paper Empty(1st, SCF, MF) Sensor Test :

If activate the Actuator of the PEMPTY/PWIDTH Sensor, the left and right of the three LEDs are on.

Paper Empty Sensor (1st) ON/OFF

Paper Empty Sensor (SCF) ON/OFF

Paper Empty Sensor (MP) ON/OFF

Increment DCU Code No. (08, Sensor TEST)

1st LED ON/OFF

2nd LED ON/OFF

3rd LED ON/OFF

Feed & Exit Sensor Test

Test the Feed sensor and Discharge sensor in the same way as '06'.

Cover Open Sensor Test

The same way as code '06'.

Fuser Test

If the [Enter] button pressed, the right LED is on and temperature of the fuser is up to READY Mode. If the

[Up] button pressed, the middle LED is on and temperature of the fuser is up to Printing Mode.

If you press the button once more, the left LED is on and temperature of the fuser is up to overheat Mode.

Hot Burn Test

If the [enter] button pressed, the printer is continuously printing without detection.

Turn the power off to stop operation.

Cleaning Mode Print Mode

Print the paper to clean the OPC Drum in the Cartridge.

Samsung Electronics

4-3

Troubleshooting

THV(+) TRIGGER. ALL HV :

All high voltage output by each HV terminal and LSU and the fan is in operation. In this mode, electronic

resistance of transfer roller and high voltage is detected.

+7P Clutch Test :

Same method of the code ‘06’.

Fan Test :

Indicates the function of the fan, same method of the code ‘06’.

Paper size Sensor Test :

Cassette Sensor 1 ON/OFF

Cassette Sensor 2 ON/OFF

Cassette Sensor 3 ON/OFF

1st LED ON/OFF

2nd LED ON/OFF

3rd LED ON/OFF

Increment DCU Code No. (00,MAIN MOTOR TEST)

Decrement DCU Code No. (15, FAN TEST)

SMD Test :

This function is for a manufacturing process. You can test all diagnostic Codes(0~06).

When you push the ‘Enter’ button, the main motor runs (Diagnostic Code 00).

If you push the ‘up’ botton, the current diagnostic Code stops, and the next diagnostic Code starts.

4-1-4 Self Test Button

If the Self-Test button pressed, vertical lines are printed.

Turn the power on while pressing this button, '89' shows in the DCU and the printer is warming up. After warming-up the

printer is in READY Mode, and '88' shows in the DCU. In this mode, without any detection, the printer begins

printing(trial printing and data from the PC). It is convenient to use this mode when the engine malfunction is detected in

the control board.

4-1-5 Paper Path Layout

EXIT2

OUT BIN FULL SEN

FACE DOWN

LSU

FACE UP

CARTRIDGE

FFUUSSEERR

PTL

FEED SEN

IDLE

H/R

EXIT1

MPF

OPC

EXIT SEN

Pr/R

FEED

PICK UP

EMPTY SEN

CASSETTE

SCF

Samsung Electronics

4-4

Troubleshooting

4-1-6 DCU Panel

ML-1650 DIAGNOSTIC CONTROL UNIT

QUICK REFERANCE

04 BIAS 3

BIAS 1

BIAS 0

05 LSU READY

LSU MT&LD

LSU MOTOR

07 PAPER EMPTY SCF

08 CRU EXIT SENSOR

SELF

TEST

FEED SENSOR

09 COVER OPEN COVER COVER OUT BIN

STATUS

10 COER HEAT

PRINT HEAT

OFF

STANDBY HEAT

DIAGNOSTIC

DIAGNOSTIC CODE

STATUS CODE

00 MAIN MOTOR OPERATION

00 READY (REGAL)

MAIN HIGH VOLTAGE ON

TRNSFER HIGH VOLTAGE (-)ON

THV(+) REFERANCE VOLTAGE

DEV/SUPPLY VOLTAGE ON

LSU OPERATING TEST

PICKUP CLUTC ON

PAPER EMPTY SENSOR TEST

FEED & EXIT SENSOR TEST

COVER OPEN SENSOR TEST

FUSER TEST

01 READY (LETTER)

02 READY (A4)

03 READY (EXECUTIVE)

04 READY (B5)

READY (FOLIO)

READY (A5,A6)

PRINT START (1'st CASSETTE)

PRINT START (MP)

PRINT START (2'nd CASSETTE)

FEED SENSOR 2'st ON

PAPER OUT

HOT BURN TEST

CLEAN (MESSAGE)PRINT

THV(+)TRIGGER &THV ON

MP PICKUP ON

OPEN FUSER ERROR

LOW HEAT ERROR

OVERHEAT ERROR

15 FAN TEST

PAPER SIZE SENSOR TEST

SMD TEST

WARM UP

COVER OPEN ERROR

CRU ERROR

SLEEP MODE

NO PAPERR or CASSETTE

PAPER JAM 0

PAPER JAM 1

PAPER JAM 2

OUTBIN FULL ERROR

MANUAL PRINT MODE

GREEN STATUS CODE

95 LSU NOT READY

DCU MODE!!

DOWN!!

SHIFT!!

STOP

ENTER

!!!

UP!!!!

O ENTER DIAGNOSTIC MODE, PUSH THREE BUTTONS SIMUL ANEOUSL

THE PRINTER POWER ON.

Samsung Electronics

4-5

Troubleshooting

4-2 The cause and solution of Bad image

4-2-1 Vertical Black Line and Band

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

• Description

2. Dark black vertical band occur in the printing.

Check and Cause

Solution

Digital Printer

1. Damaged develop roller in the Developer.

Digital Printer

1. If causes 1 and 2 occur in the developer

cartridge, replace the developer and try to

print out.

Deformed Doctor-blade or cleaning-

Digital Printer

blade.

Digital Printer

2. Scratched surface of the discharge roller

in the developer.

2. Replace the transfer roller if occurred as

No. 3.

3. Partly depression or deformation on the

surface of the transfer roller.

4-2-2 Vertical White Line

• Description

White vertical voids in the image.

Check and Cause

Solution

Digital Printer

1. Foreign matter stuck onto the window of

internal lenses of LSU mirror.

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. Foreign matter or toner particles between

the developer roller and blade.

2. Foreign matter in the LSU : Open the

cover of LSU and clean with a cotton

swab on the surface of the reflex mirror.

(In case the life of the developer 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 devel-

oper frame.

3. No 3. : Remove the foreign matter and

burr of the exposure window.

(Developer cartridge)

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

odically at the top of a black image.

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 developer cartridge.

Samsung Electronics

4-6

Troubleshooting

4-2-3 Horizontal Black Band

1. Dark or blurry horizontal stripes occur in the printing periodically.

(They may not occur periodically.)

• Description

Check and Cause

Solution

Digital Printer

1. Bad contacts of the voltage terminals to

developer.

1. Clean each voltage terminal of the Charge,

Supply, Develop and Transfer roller.

(remove the toner particles and paper par-

ticles)

2. The rollers of developer may be stained.

Charge roller = 38.5mm

2. Clean the right Gear that has relatively

small gap of the teeth in the OPC.

Supply roller

51mm

Develop roller = 50mm

Transfer roller = 56.8mm

3. If the malfunction persists, replace the

developer.

4-2-4 Black/White Spot

1. Dark or blurry black spots occur periodically in the printing.

2. White spots occur periodically in the printing.

• Description

Check and Cause

Solution

Digital Printer

1. If dark or blurry black spots occur periodi-

cally, the rollers in the Developer may be

contaminated with foreign matte or paper

particles.

1. Run OPC cleaning Mode Print and run the

Self-test 2 or 3 times.

( Charge roller : 38.5 mm interval

OPC drum : 96 mm interval)

2. If faded areas or voids occur in a black

image at intervals of 96 mm, or black

spots occur elsewhere, the OPC drum

surface is damaged.

2. In case of 96 mm interval unremovable in 1,

cleanly remove foreign substances stuck on

the OPC location equivalent to black spots

and white spots with a dry duster.

3. If a black image is partially broken, the

transfer voltage is abnormal or the trans-

fer roller's life has expired.

3. The transfer roller guarantees 125,000

sheets printing. If the roller's life is expired,

replace it.

4. In case of 38.5 mm interval unremovable in

1, take measures as to replace the develop-

er cartridge and try to print out.

5. Clean the inside of the set against the paper

particles and foreign matter in order not to

cause the trouble.

Samsung Electronics

4-7

Troubleshooting

4-2-5 Light Image

• Description

The printed image is light, with no ghost.

Check and Cause

Solution

Digital Printer

1. Develop roller is stained when the toner

of developer cartridge is almost con-

sumed.

1. Check if the Toner Save mode is off.

2. Ambient temperature is below than 10°C.

2. No 1 : Replace the developer cartridge and

try to print out.

3. Bad contact caused by the toner stains

between the high voltage terminal in the

HVPS and the one in the set.

3. No 2 : Wait 30 minutes after printer is pow-

ered on before you start printing.

4. Abnormal output from the HVPS.

(Run self-test and check 1~4)

4. No3 : Clean up the contaminated area by

the toner.

5. Replace the HVPS if the problems are not

solved by the above four directions.

4-2-6 Dark Image or a Black

• Description

The printed image is dark.

Check and Cause

Solution

Digital Printer

1. No charge voltage in the engine board.

( Perform DCU diagnostic code 01)

1. Clean the high voltage charge terminal.

2. Charge voltage is not turned on due to

the bad contacts between power supply

in the side of the Developer and charge

terminal of HVPS.

2. Check the state of the connector which

connects the engine board and HVPS.

3. Replace the HVPS if not solved by the

above direction 1 and 2.

Samsung Electronics

4-8

Troubleshooting

4-2-7 Uneven Density

• Description

Print density is uneven between left and right.

Check and Cause

Solution

1. The pressure force on the left and right

springs of the transfer roller is not even,

the springs are damaged, the transfer

roller is improperly installed, or the trans-

fer roller bushing or holder is damaged.

1. Replace both the left and right Spring

Holder.

2. The life of the Developer has expired.

2. Occur in the developer cartridge, replace

the developer and try to print out.

3. The toner level is not even on the devel-

oper roller due to the bad blade.

4-2-8 Background

• Description

Light dark background appears in whole area of the printing.

Check and Cause

Solution

Digital Printer

1. Recycled recording paper has been

used.

1. B/S is not guaranteed when using recycled

paper.

2. The life of the Developer has expired.

2. Replace the Developer that has expired.

3. Clean the busing part of the transfer roller.

3. The up-to-down movement of the trans-

fer roller is swift?

4. The HVPS is normal?

4. Replace the Developer if not solved by the

above direction 1~3.

(Perform DCU diagnostic code 01~04)

Samsung Electronics

4-9

Troubleshooting

4-2-9 Ghost (1)

• Description

Ghost occurs at 96 mm intervals of the OPC drum in the whole printing.

Check and Cause

Solution

Digital Printer

1. Bad contacts caused by contamination

from toner particles between high voltage

terminal in the main body and the elec-

trode of the Developer.

1. Clean the terminals when contaminated by

toner particles.

Digital Printer

2. Bad contacts caused by contamination

from toner particles between high voltage

terminal in the main body and the one in

the HVPS board.

2. Occur in the developer cartridge, replace

the developer and try to print out.

3. The life of developer is expired.

3. Replace the engine board if not solved by

the above directions 1-2.

4. Transfer roller lifetime(125,000 sheets)

has expired.

4. If not solved by the direction 3, check the

transfer roller lifetime and replace it.

5. Abnormal low temperature(below 10°C).

5. Wait about 1 hour after power on before

using printer.

6. Damaged cleaning blade in the developer.

6. Occur in the developer cartridge, replace

the developer and try to print out.

4-2-10 Ghost (2)

Ghost occurs at 96 mm intervals of the OPC drum in the whole printing.

(When printing on card stock or transparencies using manual feeder)

• Description

Check and Cause

Solution

Digital Printer

When printing on card stock thicker than nor-

mal paper or transparencies such as OHP,

higher transfer voltage is required.

Select 'Thick Mode' on paper type menu from

the software application and after using return-

ing to the original mode is recommended.

Digital Printer

Samsung Electronics

4-10

Troubleshooting

4-2-11 Ghost (3)

• Description

White ghost occurs in the black image printing at 51mm intervals.

Check and Cause

Solution

Digital Printer

1. The life of the developer may be expired.

1. Occur in the developer cartridge, replace

the developer and try to print out.

Digital Printer

2. The abnormal voltage and bad contact of

the terminal of the supply roller

2. Check the approved voltage of the supply

roller and contact of the terminal and adjust

if necessary.

Digital Printer

4-2-12 Ghost (4)

• Description

Ghost occurs at 70 mm intervals.

Check and Cause

Solution

Digital Printer

The temperature of the fuser is maintained

high.

1. Disassemble the fuser and remove the

contaminated toner particles on the roller

and clean the foreign matter between

Thermistor and Heat roller.

Digital Printer

(

Caution: can be deformed)

4-2-13 Satins on the Face of Page

• Description

The background on the face of the printed page is stained.

Check and Cause

Solution

Digital Printer

1. Toner leakage due to improperly sealed

developer.

1. Replace the developer cartridge.

2. If the transfer roller is contaminated, satins

on the face of page will occur.

2. If the transfer roller is contaminated, run PC

Cleaning Mode Print 2 or 3 times.

And perform Self-Test 2 or 3 times to

remove contamination.

Samsung Electronics

4-11

Troubleshooting

4-2-14 Satins on Back of Page

• Description

The back of the page is stained at 56.1 mm intervals.

Check and Cause

Solution

Digital Printer

1. Transfer roller is contaminated.

1. Perform the OPC Cleaning Mode Print 2 or

3 times. Run Self-Test to remove the conta-

mination of the transfer roller.

Digital Printer

2. Pressure roller is contaminated.

2. Replace the transfer roller if contaminated

severely.

3. Disassemble the fuser and clean the

H/R(Heat Roller) and P/R(Pressure roller).

And check the area between H/R and

Thermistor. If contaminated, clean the area

not to be deformed.

4-2-15 Blank Page Print out (1)

• Description

Blank page is printed.

Check and Cause

Solution

Digital Printer

Bad ground contacts in OPC and/or devel-

oper.

Remove contamination of the terminals of the

developer and the unit.

4-2-16 Blank Page Print out (2)

1. Blank page is printed.

2. One or several blank pages are printed.

• Description

3. When the printer turns on, several blank pages print.

Check and Cause

Solution

1. Bad ground contacts in OPC and/or

developer.

1. Remove contamination of the terminals of

the developer.

2. Abnormal solenoid.

2. Perform the engine self test using DCU to check

if the Solenoid is normal.(refer to code 06)

3. If not solved by the above directions 1-2,

Replace the engine board.

4. Turn the power off, delete the data of PC

and try printing again.

Samsung Electronics

4-12

Troubleshooting

4-3 The cause and solution of the bad discharge

4-3-1 Wrong Print Position

• Description

Printing begins at wrong position on the paper.

Check and Cause

Solution

Wrong sense time caused by defective feed sensor

actuator.

Replace the defective actuator

4-3-2 JAM 0

1. Paper is not exited from the cassette.

2. Jam-0 occurs if the paper feeds into the printer.

• Description

Check and Cause

Solution

1. Check the Solenoid by using DCU

diagnostic mode 06.

1. Replace the solenoid.

EXIT SEN

2. Check if the pad is loose due to bad

sealing of the side-pad.

2. Replace the side-pad Assembly L or

R, if necessary.

CASSETTE

JAM

3. Check the surface of the roller-pick-

up for foreign matter.

3. Clean with soft cloth dampened with

IPA(Isopropyl Alcohol) or water.

4. If continuous clusters occur, check

whether the assembly slot between

shaft-pickup and housing-pickup

become open or is broken away.

4. Replace the Housing-Pickup and/or

Shaft-Pickup.

5. If the paper feeds into the printer

rand Jam 0 occurs, perform DCU to

check feed-sensor of the engine

board.

Samsung Electronics

4-13

Troubleshooting

4-3-3 JAM 1

1. Recording paper is jammed in front of or inside the fuser.

2. Recording paper is stuck in the discharge roller and in the fuser just after passing through the

Actuator-Feed.

• Description

Check and Cause

Solution

1. Replace the SMPS.

1. If the recording paper is jammed in

front of or inside the fuser.

EXIT SEN

(Perform DCU diagnostic code of)

EXIT SEN

CASSETTE

2. If the recording paper is stuck in the

discharge roller and the fuser just

after passing through the Actuator-

Feed, Feed Actuator may be defec-

tive.

2. Reassemble the Actuator-Feed and

Spring-Actuator if the returning is bad.

JAM

4-3-4 JAM 2

1. Recording paper is jammed in front of or inside the fuser.

2. Recording paper is stuck in the discharge roller and in the fuser just after passing through the

Actuator-Feed.

• Description

Check and Cause

Solution

1. If the paper is completely fed out of

the printer, but Jam 2 occurs : Exit

sensor is defective.

1. Check if the exit sensor actuator is

defective.

EXIT SEN

• Check if the actuator exit is unformed

(Check if the lever part is unformed

in shape).

• Check whether burrs occur in the

assembly part of the actuator exit or

not and if the actuator is smoothly

operated.

EXIT SEN

• After the paper is completely dis-

charged, actuator Exit should return

to the original position to shut the

photo-sensor. Sometimes it takes

longer hour than it should and does

not return.

CASSETTE

JAM

• Check if foreign matters and wire get

caught in the actuator exit's operation.

2. If the paper is rolled in the Fuser Roller:

• This occurs when a Guide claw is

broken away or transformed.

• It occurs when the Spring of a Guide

claw is broken away or transformed.

• It occurs when the Heat-Roller or

Pressure-Roller is seriously contami-

nated with the toner.

2. If the paper is stuck in the fuser : dis-

assemble the fuser and remove the

jammed paper, and clean the surface

of the pressure roller with dry gauze.

3. Paper is accordion in the fuser.

3. Remove the jammed paper after disas-

sembling the fuser : Clean the surface

of the pressure roller with dry gauze.

• Remove the toner particles stained

on the rib.

• Check the assemblage and perfor-

mance of the exit.

Samsung Electronics

4-14

Troubleshooting

4-3-5 Multi-Feeding

• Description

Multiple sheets of paper are fed at once.

Check and Cause

Solution

1. Solenoid malfunction(the solenoid does not work

properly): Perform DCU mode : solenoid check 06.

1. Replace the solenoid if necessary.

2. Pad-Friction is contaminated with foreign matter.(oil...)

3. The face of paper is blended.

2. Clean the pad friction with soft clothe dampened

with IPA(Isopropyl Alcohol).

3. Use the smooth paper.

4-3-6 Paper rolled in the fuser

• Description

If contaminated at intervals of 57mm on the back of a paper.

Check and Cause

Solution

1. Contamination of the pressure roller.

(Background, Hot off set)

1. Disassemble the fuser, clean the area between the

Heat-roller and Thermistor and remove the foreign

matter of the pressure roller.

2. If background appears badly in the printing, fix it by

referring to the solutions for background.

(See 4-2-8 Background)

Samsung Electronics

4-15

Troubleshooting

4-3-7 OPC

• Description

Paper is rolled up in the OPC.

Check and Cause

Solution

1. Paper is too much thin.

1. Recommend to use normal paper.

2. The face of paper is curled.

2. How to remove the rolled paper in the OPC.

• Remove the paper while turning the OPC against

the ongoing direction.

• Clean fingerprints on the OPC softly with soft

cloth dampened with IPA(Isopropyl Alcohol) or tis-

sue.

Samsung Electronics

4-16

Troubleshooting

4-4 The cause and solution of the malfunction

4-4-1 All LEDs blinking (Fuser Error)

1. All the lamps on the operator panel blink.

2. Gear of the fuser does not work and breaks away melt away.

• Description

When printing, motor breaks away from its place due to defective fuser gear.

Check and Cause

Solution

1. Check if the thermostat, AC wire and Heat Lamp is

open.

1. If the thermostat is open replace the fuser and

check following items.

2. Check if the thermistor sensor is in place.

2. If the thermistor sensor device is located deep in the

sponge, replace the fuser.

3. Check if the heat lamp works properly.

3. Check if the circuit of overheat mode works properly.

4. Run DCU mode : Perform DCU diagnostic code 10.

4. Check if the overheat circuit works properly.

5. The fuser gear is defective due to melting away.

4-4-2 All LEDs blinking (Scan Error)

• Description

1. All lamps on the operator panel blink.

Check and Cause

Solution

DCU Mode : Perform DCU diagnostic code 05. If the DCU

error code 95 is displayed, replace LSU.

Replace LSU.

If you cannot solve the problem after you replace LSU,

replace the main board.

Samsung Electronics

4-17

Troubleshooting

4-4-3 Not function of the gear of the fuser due to melting away

• Description

The motor breaks away from its place due to gear melting away.

Check and Cause

Solution

DCU Mode : Check if the Error States '60' '62' '68' occur.

Check the operation of Fuser Erasing Lamp On/Off with

the Error Code Check -10-.

1. Replace the Fuser.

2. Replace the Main Control board.

4-4-4 Paper Empty

• Description

The paper lamp on the operator panel is on even when paper is loaded in the cassette.

Check and Cause

Solution

1. Bending or deformation of the actuator of the paper sen-

sor.

1. Replace the defective actuator.

2. The function of the engine board is defective Perform

DCU mode: Perform DCU diagnostic code 8.

2. Replace the engine board.

4-4-5 Paper Empty without indication

• Description

The paper lamp on the operator panel does not come on when the paper cassette is empty.

Check and Cause

Solution

1. Bending or deformation of the actuator of the paper sen-

sor.

1. Replace the defective actuator.

2. The function of the engine board is defective Perform.

DCU mode : Perform DCU diagnostic code 8.

2. Replace the engine board.

Samsung Electronics

4-18

Troubleshooting

4-4-6 Cover Open

• Description

The ERROR lamp is on even when the print cover is closed.

Check and Cause

Solution

1. The hook lever in the top cover may be defective.

1. Replace the hook lever, if defective.

2. Check the connector (CN1 : Engine B’d↔ HVPS) and

circuit of the cover switch department in the Main Control

board. Perform DCU mode : If Error state '64' occurs,

Check the related codes of the Cover Open Error.

2. Check the insertion of the Cover Open S/W

Connect.

3. Replace the Main Control board or Cover Open

S/W.

Hook Lever

4-4-7 No lamp on when the cover is open

• Description

The ERROR lamp does not come on even when the printer cover is open

Check and Cause

Solution

1. Check the connector(CN8) and circuit of the cover switch

department in the Main Control board. Perform DCU

mode : If Error state '64' occurs, Check the related codes

of the Cover Open Error

1. Check the insertion of the Cover Open S/W

Connect.

2. Replace the Main Control board or Cover Open

S/W.

Samsung Electronics

4-19

Troubleshooting

4-4-8 Defective motor operation

• Description

Main motor is not driving when printing, and paper does not feed into the printer, resulting 'Jam 0'.

Check and Cause

Solution

1. Motor harness or sub PCB may be defective.

1. Check the motor harness, replace it, if defective.

2. Perform DCU diagnostic code 00 and Check the motor

operation.

2. Replace the SMPS, if necessary.

4-4-9 No Power

• Description

When system power is turned on, all lamps on the operator panel do not come on.

Check and Cause

Solution

1. Check if the power input and SMPS output are normal.

1. Replace the power supply cord or SMPS.

2. Check the inferiority of LED-Panel on the front-cover if

the LED of Panel does not appear after normal warming-

up.

2. Replace the control board.

3. Replace the LED-panel.

Samsung Electronics

4-20

Troubleshooting

4-4-10 Vertical Line Getting Curved

• Description

When printing, vertical line gets curved.

Check and Cause

Solution

1. If the supply of +24v is unstable in the Main Control board

linking with LSU, check drive by DCU Mode: LSU Check

-05- LSU Motor on.

1. Replace LSU.

2. Replace the Main Control board.

Samsung Electronics

4-21

Troubleshooting

4-5 Toner Cartridge Service

It is not guaranteed for the default caused by using other toner cartridge other than the cartridge supplied by the

Samsung Electronic or caused by non-licensed refill production.

4-5-1 Precautions on Safe-keeping of Toner Cartridge

Excessive exposure to direct light more than a few minutes may cause damage to the cartridge.

4-5-2 Service for the Life of Toner Cartridge

If the printed image is light due to the life of the toner, you can temporarily improve the print quality by redistributing the

toner(Shake the toner cartridge), however, you should replace the toner cartridge to solve the problem thoroughly.

4-5-3 Judgment of a genuine Toner Cartridge

One-way Screw

Capacity indication Label

One-way Screw

Genuine Label :

The prevention of

disassembly

Samsung Electronics

4-22

Troubleshooting

4-5-4 Signs and Measures at Poor toner cartridge

Fault

Signs

Cause & Check

Solution

Light image and

partially blank

image

• The printed image

is light or unclean

and untidy.

1. If the image is light or unclean 1. All of 1, 2, 3 above-

and untidy printed image -

Shake the developer and

then recheck.

(1)NG: Check the weight of the

developer

If it become better by shaking,

replace with a new developer

after 50-100 sheets in the clos-

ing state of the life span.

(The life is ended.)

• Some part of the

image is not print-

ed.

Digital Printer

(2)OK: Lack of toner, so the life

is nearly closed.

• Periodically a noise 2. Some part of image is not

as "tick tick" occurs.

2. In case of 2-

printed - Shake the develop-

er and then recheck.

(1)NG: Check the weight of the

developer and clean

If it becomes better after clean-

ing the LSU window, then the

developer is normal.

(Because of foreign substance

on the LSU window, the image

has not been printed partly.)

the LSU window with a

cotton swab, then

recheck.

(2)OK: Lack of toner, so the life

is nearly closed.

3. Periodically a noise as "tick

tick" occurs - Measure the

cycle and the weight of the

developer.

3. In case of 3-

If the cycle of noise is about 2

seconds, the toner inside the

developer has been nearly

exhausted.( Purchase and

replace with a new developer

after using about 200 sheets at

the point of occurrence)

4. In case of 3-

4. White vertical stripes on the

whole screen or partly :

Check the weight of the

developer.

This is a phenomenon caused

by lack of toner, so replace with

a new developer.

Toner

Contamination

• Toner is fallen on

the papers periodi-

cally.

1. Toner is fallen on the paper

periodically.

(1)Check the cycle of the

falling of the toner.

1. If both ends of the OPC drum

are contaminated with toner:

Check the life of the developer.

• Contaminated with

toner on prints part-

ly or over the whole

surface.

(2)Check the appearance of

both ends of the developer

OPC drum.

2.The center of the printed mat-

ter is contaminated with toner.

(1)Check whether foreign sub-

stances or toner are stuck

to the terminal (contact

point) of the developer.

(2)Check whether the state of

the terminal assembly is

normal.

2. Check whether it could be recy-

cled.

3. If it cannot be recycled:

Replace the developer.

Samsung Electronics

4-23

Troubleshooting

Fault

Signs

Cause & Check

Solution

1. If light or dark periodical black

dots occur, this is because the

developer rollers are contami-

nated with foreign substance

or paper particles.

(1)38.5mm interval : Charged

roller

(2)96mm interval : OPC cycle

White Black spot

• Light or dark black

dots on the image

occur periodically.

1. In case of 1 above -

Run OPC Cleaning Mode Print

4-5 times repeatedly to remove.

Especially check foreign sub-

stance on the OPC surface, then

remove them with a clean gauze

moistened with IPA(Isopropyl

Alcohol) not to damage OPC if

necessary.

Digital Printer

• White spots occur

in the image period-

ically.

Never use usual alcohol.

2. If white spots occur in a black

image at intervals of 96mm, or

black spots occur elsewhere,

the OPC drum is damaged or

foreign substance is stuck to

the surface.

2. In case of 2

If they are not disappeared by

running OPC Cleaning Mode

Print 4-5 times.

at intervals of 38.5mm - Replace

the developer.

: at intervals of 96mm - Remove

foreign substance.

: Broken image - Replace the

developer according to care-

lessness.

3. If a black and white or graphic 3. In case of 3 - Exchange the

image is partially broken at

irregular intervals, the transfer

roller's life has been expired or

the transfer voltage is abnor-

mal.

transfer roller because the life of

the transfer roller in use has been

expired. (Check the transfer volt-

age and readjust if different.)

Recycled product • Poor appearance of 1. Poor appearance of the devel- 1. In case of 1 -

the developer.

oper.

(1)If there is an evidence of disas-

sembling the developer.

(2)If materials other than normal

parts of the developer are

added or substituted.

(1)Check the damage to label

and whether different materi-

als are used.

(2)Check the appearance of

parts of the developer, such

as frame, hopper.

• Unclean and rough

printouts.

• Bad background in

the image.

2. Unclean and rough printouts.

(1)Check whether foreign sub-

stance or toner are stuck to

the terminal (contact point) of

the developer.

(2)Check whether the state of

the terminal assembly is nor-

mal.

2. In case of 2 - If there are any

abnormals in connection with the

situation of 1.

(1)It occurs when the developer

is recycled over 2 times.

(2)If toner nearly being expired

are collected to use, it is

judged as the recycled devel-

oper.

Samsung Electronics

4-24

Troubleshooting

Fault

Signs

Cause & Check

Solution

Ghost & Image

Contamination

• The printed image

is too light or dark,

or partially contami-

nated black.

1. The printed image is too light

or dark, or partially contami-

nated black.

(1)Check whether foreign sub-

stance or toner are stuck to

the terminal(point of contact)

of the developer.

1. All of 1, 2, 3 above

(1)Remove toner and foreign sub-

stances adhered to the contact

point of the developer.

(2)The contact point of the unit

facing that of the developer

also must be cleaned.

• Totally contaminat-

edblack.

(Black image print-

ed out)

(2)Check whether the terminal

assembly is normal.

(3)If the terminal assembly is

unsafe:

• Fully stick the terminal to or

reassemble it after disassem-

bling.

• Disassemble the side plate and

push the terminal to be stuck,

then reassemble it.

• The density of print-

outs is too dark and

ghost occurs.

2. Totally contaminated black.

(Black image printed out)

(1)Check whether foreign sub-

stances are stuck to the ter-

minal(point of contact) of the

developer and the state of

assembly.

2. In case of 2

It is a phenomenon when the

OPC drum of the developer is not

electrically charged. Clean the

terminals of the charged roller,

then recheck it.

(Especially check the

charged roller terminal.)

3. The printed image is dark and 3. In case of 3

ghost occurs.

It is a phenomenon as the devel-

(1)Check foreign substance

attached to the terminal

(point of contact) of the

developer and the state of

assembly.

oping bias voltage of the devel-

oper. Clean the terminals of the

developing roller, then recheck it.

(Especially check the devel-

oping roller terminal.)

Samsung Electronics

4-25

Troubleshooting

4-6 The cause and solutions of bad environment of the software

4-6-1 The printer is not working (1)

• Description

While Power turned on, the printer is not working in the printing mode.

Check and Cause

Solution

1. Run Self-Test Mode: Turn the power on while pressing

the test printing button for 2 or 3 seconds before printing

works.

1.Check the power of the printer and perform the Self-

Test. If the test printing works, that means no prob-

lems in the printer itself. If the test printing does not

work, that means bad functioning of the printer(not

because of software). Perform DCU to check the

Error Status.

2. Check if the PC and the printer is properly connected

and the toner cartridge installed.

2. Replace the printer cable. If the problems not solved

even after the cable replaced, check the amount of

the remaining tone.

(refer to Toner Cartridge Service 4-5)

3. Printing is nor working in the Windows.

3. Check if the connection between PC and printer port

is proper. If you use windows, check if the printer dri-

ver in the controller is set up. If the printer driver is

properly set up, check in which program the printing

is not working. The best way to find out is to open the

memo pad to check the function of printing. If it is not

working in a certain program, adjust the setup the

program requires. Sometimes, the printout is normal

within the Windows basic programs, but it's not work-

ing in a particular program. In such case, install the

new driver again. If not working in the Windows basic

program, Check the setup of the port of CMOS is on

ECP. And check the address of IRQ 7 and 378

4. If the scanner needs to be connected to the printer,

first the remove the scanner from the PC to see if the

printer is properly working alone.

4. Check if the printer cable is directly connected to periph-

eral devices

Samsung Electronics

4-26

Troubleshooting

4-6-2 The printer is not working (2)

After receiving the printing order, no response at all or the low speed of printing

occurs due to wrong setup of the environment rather than malfunction of the printer itself.

• Description

Check and Cause

Solution

1. Secure more space of the hard disk.

1. Not working with the message 'insufficient printer

memory' means hard disk space problem rather than

the RAM problem. In this case, provide more space

for the hard disk. Secure more space using the disk

utilities program.

2. Printing error occurs even if there is enough space in

the hard disk.

2. The connection of the cable and printer port is not

proper. Check if the connection is properly done and

if the parallel port in CMOS is rightly set up.

3. Check the parallel-port-related items in the CMOS

Setup.

3. As a printer port, Select ECP or SPP among

SPP(Normal), ECP, and EPP modes(increase print-

ing speed) SPP normal mode support 8-bit data

transfer, while ECP Mode transfer the 12-bit data.

4. Reboot the system to print.

4. If the regular font is not printing, the cable or the

printer driver may be defective.

Turn the PC and printer off, and reboot the system

to print again. If not solved, double-click the printer in

my computer If the regular fonts are not printed this

time again. the cable must be defective so replace

the cable with new one.

Samsung Electronics

4-27

Troubleshooting

4-6-3 Abnormal Printing

The printing is not working properly even when the cable has no problem.

(even after the cable is replaced)

If the printer won't work at all or the strange fonts are repeated, the printer driver may be defec-

tive or wrong setup in the CMOS Setup.

• Description

Check and Cause

Solution

1. Set up the parallel port in the CMOS SETUP.

1. Select SPP(Normal) or ECP LPT Port the among

ECP, EPP or SPP in the CMOS Setup.

2. Printer Driver Error.

2. Check the printer in My Computer.(to see if the

printer driver is compatible to the present driver or

delete the old driver, if defective and reinstall the new

driver)

3. Error message from insufficient memory.

(The printing job sometimes stops or due to insufficient

virtual memory, but it actually comes from the insuffi-

cient space of the hard disk.)

3. Delete the unnecessary files to secure enough

space of the hard disk and start printing job again.

Samsung Electronics

4-28

Troubleshooting

4-6-4 SPOOL Error

To spool which stands for "simultaneous peripheral operations online" a computer document or

task list (or "job") is to read it in and store it, usually on a hard disk or larger storage medium so

that it can be printed or otherwise processed at a more convenient time (for example, when a

printer is finished printing its current document).

• Description

Check and Cause

Solution

1. Insufficient space of the hard disk in the directory

assigned for the basic spool.

1. Delete the unnecessary files to provide more space

to start printing job.

2. If the previous printing error not solved.

2. If there are some files with the extension name of

****.jnl, Delete them and Reboot the Windows to

restart printing job.

3. When expected to collide with other program.

3. Shut down all other programs except the current

one, if possible.

4. When an application program or the printer driver is

damaged.

4. Delete the printer driver completely and reinstall it.

5. When some files related to OS are damaged or virus

infected.

5 After rebooting the computer, check for viruses,

restore the damaged files and reinstall the program

to do the printing job.

6. Memory is less than suggested one.

6. Add up enough memory to the PC.

How to delete the data in the spool manager.

In the spool manager, the installed drivers and the list of the documents waiting to be printed are shown.

Select the document to be deleted and check the delete menu.

If you intend to delete the current document being printed, the data being transferred to the printer will be put

out and then the document is removed. Before choosing the document, the menu is still inactive.

Or put the document out of the list and repeat the routine as in the above or finish the spool manager.

Samsung Electronics

4-29

Exploded Views and Parts List

5. Exploded Views and Parts List

• Deal drawings and service parts are declared for the items with higher rate

of inferiority and replaceable in the level of service description only.

• If inferiority occurs, you can replace the parts by the unit declared in deal

drawings and service items.

Way to observe Part Code & Description

Part code and Description is quoted and controlled by determined standard. Refer to this determined

standard, it will help with ordering Part.

• There ar woo kinds of Part code inscription type.

ex ) 2007-007961

ex ) JB96-01268A

R-CHIP

ELA UNIT-COVER TOP

Type 1 : Controlled by Company : It can be commonly used for all kinds of product SEC produce.

Mostly, electronics Parts.

Type 2 : Controlled by Division : It is used or one produce. Mostly, Mostly, mechanical Parts.

• A/S privately used part : It is only used for A/S .

• Ass’y part : Assembled by more than 2 Parts. If necessary part is not A/S Part, Ass’y part including

necessary par can be used. It is shown in the diagram and drawing of SVC manual.

• Ass’y part and A/S privately used Part is distinguished by part Code and Description.

The are inscription type 2. It is recognized by Part character and front side of description.

DIVISION

A/S Private

PART CODE

**81-******

DESCRIPTION

AS-*****

(JB81-00039A)

(AS-USE)

ASS’Y Part

**75-******

(JB75-00068A)

MEC-*****

(MEC-CHUTE)

**92-******

(JB92-01131A)

PBA ******

(PBA MAIN-CONTROLLER)

**97-******

MEA ******

(JB97-01089A)

(MEA UNIT-PULLEY IDLE)

Samsung Electronics

5-1

Exploded Views and Parts List

5-1 Exploded Views and Parts List

• Service Parts List

O : Service available X : Service not available

NO.

DESCRIPTION

SEC CODE

Q’TY SA

REMARK

NO.

DESCRIPTION

SEC CODE

Q’TY SA

REMARK

ELA HOU-HOUSING HAWK16

refer to the

table

10-4

SMPS-HAWK16 SMPS

PWB SMPS V2 (220V)

FAN-DC

JC44-00021A

JC44-00022A

JC31-00012A

JC72-00656A

JC70-00009A

110V

220V

1-1

PMO-COVER OPEN

PMO-COVER MAIN

JC72-00628A

1-2

refer to the

table

PMO-CAP WIRE

IPR-CLAMP EMI

1-3

1-4

1-5

1-6

1-7

1-8

1-9

1-10

PMO-STOPPER HINGE OPEN

PMO-LENS LED

JC72-00482A

JC72-00365A

JC72-00499A

JC92-01208D

JC72-00355A

JC72-00356A

JC72-00358A

JC97-01325A

JC72-00349A

JC72-00350A

JC97-01315C

JC61-40001A

JC97-01316A

JC61-40001A

JC59-00013A

JC96-02057A

JC31-00002A

JC31-00009A

ELA UNIT-FRAME BASE HAWK16 JC96-01641J

ELA UNIT-FRAME BASE HAWK16 JC96-01641K

110V

220V

PMO-KEY BUTTON

14-1

ELA UNIT-HOLDER TR L

MEC-ROLLER TRANSFER

ELA UNIT-HOLDER TR R

GEAR-TR29

JC96-01730A

JC75-00124A

JC96-01729A

JC66-00039A

JC96-01643A

JC96-01642A

JC92-01234B

JC96-01772A

JC92-01261A

JC92-01235A

JC96-01720A

PBA SUB-PANEL_SEC

PMO-COVER REAR

14-2

14-3

14-4

14-5

14-6

14-7

14-8

14-9

PMO-STACKER REAR

PMO-COVER CONTROLLER

MEA UNIT-MP TRAY

ELA UNIT-GUIDE DEVE L

ELA UNIT-GUIDE DEVE R

PBA SUB-EXIT SENSOR

ELA HOU-VARISTOR

PBA SUB-FUSER SW

1-10-1 PMO-COVER-MP

1-10-2 PMO-TRAY LINK MP

1-11

MEA UNIT-BRKT BOTTOM(L)

1-11-1 FOOT-RUBBER

14-10 PBA SUB-SWITCH

1-12

MEA UNIT-BRKT BOTTOM(R)

14-11 ELA UNIT-EMPTY_ACT HAWK

1-12-1 FOOT-RUBBER

UNIT-LSU(M)

14-12 ELA UNIT-GUIDE FEED XRX 16 JC96-01653D

14-13 ELA UNIT-PTL XRX 16

JC96-02126A

JC96-01645A

JC92-01353A

JC81-00394A

JC81-00393A

JC75-00114A

4713-001155

4713-001156

4712-000001

JC39-00135A

JC44-00027A

ELA UNIT-MOTOR 16

14-14 ELA UNIT-GUIDE TRANSFER

3-1

3-2

MOTOR-STEP 7.5_DEG

MOTOR-STEP

PBA MAIN-CONTROLLER

ELA UNIT-FUSER

MEC-ROLLER PRESSURE

LAMP-HALOGEN

THERMOSTAT

110V

220V

ELA UNIT-DEVE

ELA HOU-MPF

JC96-01650A

0604-001095

JC33-00003A

JC73-10907A

JC97-01466C

JC39-00157A

JC97-01324B

JC73-40907A

JC72-00320A

JC96-02113A

JC96-02114A

JC70-00080A

JC72-00334A

JC92-01302A

16-1

5-1

5-2

5-3

PHOTO-INTERRUPTER

SOLENOID-HAWK

16-2

110V

220V

RPR-RUBBER P/UP MP

MEA UNIT-FEEDER CST 500

CBF HARNESS-MOTOR

MEA UNIT-FEEDER

RMO-RUBBER PICK_UP

PMO-CAP SENSOR

ELA HOU-ENGINE

SHIELD-PCU

16-3

550SHEETS

CBF HARNESS-LSU

SMPS-HVPS

MEA RACK-HOU EXIT

JC97-01338J

JC97-01338K

Only 1650/XIL

8-1

19-1 PMO-HOLDER LEVER

19-2 PHOTO INTERRUPTER

19-3 PMO-LEVER STACKING

JC72-00631A

0604-001095

JC72-41188F

JC72-00627A

JC92-01310A

110V

220V

10-1

PMO-DUCT FAN2

10-2

10-3

PCT-INSULATOR PCU

PBA MAIN-ENGINE

PBA MAIN-MOTOR JOINT

MEA RACK-CAST SCF-110V

110V/220V

Samsung Electronics

5-2

Exploded Views and Parts List

ELA HOU-HOUSING

HAWK16

PMO-COVER MAIN

1-7

1-1

ML-1650/XAA

ML-1651N/XAA

ML-1650/XEF

ML-1651N/XEF

ML-1651N/XEC

ML-1650/XEG

ML-1651N/XG

ML-1650/XET

ML-1651N/XET

ML-1650/XEU

ML-1651N/XEU

ML-1650/XIL

JC96-01590V

JC96-02235A

JC96-01590W

JC96-01590Z

JC96-01590X

JC96-01590V

JC96-02235A

JC96-01590V

JC96-02235A

JC96-01590V

JC96-02235A

JC96-01590Y

JC96-02275B

JC96-02235A

JC72-00330U

JC72-0030W

JC72-00330V

JC72-00330X

JC72-00330Y

JC72-00330U

JC72-00330W

JC72-00330U

JC72-00330W

JC72-00330U

JC72-00330W

JC63-00075A

JC72-00330Z

JC72-00330W

1-8

1-2

1-3

1-4

1-9

ML-1651N/XIL

ML-1651N/XIP

16-4

1-5

1-6

16-3

16-5

19-1

1-3

1-12

1-11

1-10

1-10-2

16-6

19-3

19-2

16-1

3-2

19-3

19-1

16-2

1-12-1

1-11-1

1-10-1

1-10-2

3-1

14-1

5-2

5-3

14-2

5-1

14-5

14-3

14-4

8-1

14-7

14-6

14-8

14-9

10-3

14-10

10-4

14-12

10-2

14-13

10-1

14-11

14-14

Samsung Electronics

5-3

Exploded Views and Parts List

5-2 All Exploded Views and Parts List

5-2-1 Cover Exploded View

NO.

Description

Q’ty

ELA HOU-COVER MAIN

1-1

PMO-COVER OPEN

PMO-COVER MAIN

STOPPER HINGE OPEN

PMO-LENS LED

1-2

1-3

1-4

1-5

PMO-KEY BUTTON

PBA PANEL

1-6

1-7

PMO-COVER REAR

PMO-STACKER REAR

IPR-SPRING LOCKER REAR

PMO-CAP REAR

1-8

1-9

1-10

1-11

1-12

1-13

PMO-SUPPORT MP TRAY

PMO-LEVER_EMPTY, MP

PMO-STOPPER_EXIT,P

PMO COVER CONTROLLER

MEA UNIT-MP TRAY

PMO-COVER-MP

1-7

3-1

3-2

3-3

1-1

MPR-NAME PLATE XRX

PMO-CHUTE

3-3-1 PMO-DUMMY CHUTE

1-13

3-4

PMO-TRAY HOLDER MP

IPR-GUIDE LATCH

3-5

3-6

3-7

PMO-SIDE GUIDE MP

PMO-TRAY LINK MP

1-8

MEA UNIT-BRKT BOTTOM(L) XRX

FOOT-RUBBER

1-9

4-1

4-2

4-3

1-2

1-10

PMO-BRKT BASE L

PAPER SIZE SENSOR ASS’Y

MEA UNIT-BRKT BOTTOM(R) XRX

FOOT-RUBBER

1-3

1-11

5-1

5-2

5-3

5-4

5-5

IPR-PLATE CST GUIDE

PMO-BRKT BASE R

1-4

1-12

SCREW-TAPTITE

1-5

1-6

IPR-GROUND SCF BASE

IPR-BAR CLOSS BOTTOM

SCREW-TAPTITE

1-3

3-7

3-3

4-3

5-4

4-2

3-3-1

5-5

3-4

5-2

3-6

3-7

4-1

3-1

3-2

3-5

5-1

5-3

Samsung Electronics

5-4

Exploded Views and Parts List

5-2-2 Frame Exploded View

NO.

Description

Q’ty

ELA UNIT-FRAME BASE

PMO-GUIDE RIB

CBF HARNESS-INLET ASS’Y

PMO-HOLDER WIRE

KEY DEVE

CBF HARNESS-ENGINE_CONTROL

CBF-HARNESS_FUSER

PBA-EXIT SENSOR

CBF-HARNESS-THERMISTOR JOINT

CBF-HARNESS-MP_CLUTCH ENG

PBA SUB-FUSER SW

PBA SUB-TONER SENSOR

PMO-FRAME COVER

IPR-TERMINAL FU

ELA UNIT-HOLDER TR L

PMO-BUSHING TR

SPRING TR L

PMO-TRANSFER HOLDER

ELA UNIT-HOLDER TR R

PMO-BUSHING TR

15-1

15-2

15-1

15-2

15-3

16-1

16-2

16-3

16-4

SPRING TR R

PMO-TRANSFER HOLDER

IPR-PLATE TR

16-1

16-2

16-3

16-4

18-1

18-2

GEAR-TR29

ELA UNIT-GUIDE DEVE L

PMO-GUIDE DEVE L

SPRING GUIDE DEVE

ELA UNIT-GUIDE DEVE R

PMO-GUIDE DEVE R

SPRING GUIDE DEVE

ELA HOU-VARISTOR

IPR-TERMINAL TR, HAWK

ELA UNIT-SENSOR DEVE

PBA -MICROSWITCH

PMO-HOLDER ACTUATOR

PMO-ACTUATOR DEVE

GROUND FU

ELA UNIT-TERMINAL TR L

ICT-SHAFT HV LARGE

SPRING-HV LARGE

ELA UNIT-TERMINAL TR S

ICT-SHAFT HV LARGE

SPRING-HV SMALL

19-1

19-2

18-2

18-1

22-1

22-2

22-3

24-1

24-2

19-1

19-2

25-1

25-2

GROUND-HVPS

IPR-REMOVE KEY

ELA UNIT-ACTUATOR FEED

PMO-ACTUATOR FEED

PMO-HOLDER ACTUATOR

SPRING-FEED HAWK 14

ELA UNIT-GUIDE TRANSFER

22-1

28-1

28-2

28-3

22-2

22-3

22-4

29-1 PMO-HADER SAW PLATE

29-2 IPR-PLATE SAW

29-3 IPR-GUIDE TRANSFER

29-4 PMO-GUIDE RIB TR

ELA UNIT-GUIDE FEED

30-1

30-2

30-1

30-2

30-3

PMO-GUIDE OPTIC

GUIDE FEED

PMO-HOLDER G/PAPER

ELA UNIT-PTL

GUIDE PLATE FEED

PMO-HOLDER PTL

PBA SUB-PTL

ELA UNIT-EMPTY ACT

PMO-ACTUATOR EMPTY HAWK

SPRING EMPTY

HINGE GUIDE FEED

GND ICU

PMO-CAP SENSOR

GND MP

GEAR-P/UP DRIVE

GROUND MOTOR

IPR-GUIDE DUST

PBA MAIN-CON_JOINT

IPR-OPC-HAWK

CAP CONNECTOR L

CAP CONNECTOR U

MEC-ROLLER TRANSFER

GEAR IDLE Z27

24-2

24-1

25-2

31-1

31-2

31-3

25-1

31-3

28-3

28-2

32-1

32-2

32-1

28-1

31-2

31-1

29-3

29-1

RING-CS

WASHER-PLAIN

IPR-WASHER SPRING SU

SPRING HINGE FEED

GEAR-EXIT M ID

IPR-GUIDE, DUST

PMO-BASE, FRAME

PMO-GUIDE-SKEW(12)

29-2

29-4

Samsung Electronics

5-5

Exploded Views and Parts List

5-2-3 Exit Exploded View

NO.

Description

Q’ty

MEA RACK-HOU EXIT

PMO-FRAME REAR

GEAR-EXIT/U, ID

RING-CS

GEAR-IDLE 25

SPRING-F/DOWN

PMO-HOLDER EXIT_F/DOWN

PMO-ROLLER-EXIT, MAIN

PMO-ROLLER-EXIT, FR

MEC-BEARING, EXIT RING-C

MEA UNIT-ROLL EXIT

GEAR-EXIT

RMP-RUBBER EXIT_F/UP

ACTUATOR OUT-FULL

MEC-BEARING, EXIT RING-C

GUIDE EXIT

SCREW TAPTITE

PHOTO SENSOR OUT BIN

PMO-HOLDER LEVER

PMO-LEVER STACKING

Samsung Electronics

5-6

Exploded Views and Parts List

5-2-4 Rack-MPF Exploded View

NO.

Description

ELA HOU-MPF

Q’ty

PHOTO-INTERRUPTER

SCREW-TAPTITE

WASHER-PLAIN

SOLENOID-HAWK

CBF-HARNESS-MP_EMPTY

SPRING KNOCK UP

SPRING-PICK UP, MP

BRACKET_MP

PMO-PLT KNOCK_UP, MP

ICT-SHAFT_P/U, MP

PMO-GEAR P/U MP

PMO-CAM PICK UP MP

PMO-FRAME_MP

PMO-HOLDER_P/U,MP

PMO-HOUSING_P/U, MP

PMO-BEARING-PICK UP

RPR-RUBBER P/UP, MP

PMO-IDLE PICK UP, MP

RPR-PAD KNOCKUP, MP

RCR-FRICTION PAD 1 MP

RCR-FRICTION PAD 2 MP

PMO-RING KNOCK UP MP

SCREW TAPTITE

PMO-ADJUST END MP

RING-E

RING-CS

Samsung Electronics

5-7

Exploded Views and Parts List

5-2-5 Fuser Exploded View

NO.

Description

Q’ty

ELA UNIT FUSER (110V)

ELA UNIT FUSER (220V)

SCREW TAPTITE M3 x 8, BH+

SCREW TAPTITE M3 x 10, FH+

SCREW MACHINE M3 x 6

THERMISTOR-NTC

ELECTRODE FU R

ELECTRODE FU M

ELECTRODE FU L

THERMOSTAT

BRKT GEAR FUSER

GEAR-IDLE 25

GEAR-IDLE 15

RING-CS

COVER FUSER

ROLLER EXIT_F/UP

EXIT_F/UP (SPRING)

SPRING-CLAW

GUIDE-CLAW

LAMP-HALOGEN(110V)

LAMP-HALOGEN(220V)

ROLLER-HEAT

ROLLER PRESSURE

FRAME FUSER

GUIDE INPUT

GEAR FUSER, 32

BUSHING HR-L

BUSHING HR-R

SPRING-BEARING PR

BUSHING PR

PMO GUIDE REAR

SHAFT EXIT_F/UP

BUSHING_TX

GEAR-EXIT

RUBBER EXIT

RUBBER EXIT F/UP

ACTUATOR EXIT

SPRING-ACTUATOR

HOLDER BRUSH

BRUSH ANTISTATIC

HOLDER SHAFT

Samsung Electronics

5-8

Exploded Views and Parts List

5-2-6 Drive Exploded View

NO.

Description

Q’ty

ELA UNIT-MOTOR

MOTOR-STEP 7.5_DEG

IPR-BRKT GEAR

IPR-BRKT MOTOR

GEAR-FUSER DRV

GEAR-RDCN 123-87

GEAR-OPC DRV 135

GEAR-OPC DRIVE2

WASHER-PLAIN

GEAR-FEED DRV

SCREW-MACHINE

MPR-POLYWASHER8

WASER-PLAIN

Samsung Electronics

5-9

Exploded Views and Parts List

5-2-7 Pick-Up Exploded View

NO.

Description

Q’ty

MEA UNIT-FEEDER

SCREW-TAPTITE

WASHER-PLAIN

SPRING-FEED(1)

SPRING-FEED(2)

BEARING-PICK UP

GEAR-P/UP DRIVE

GEAR-FEED

GEAR-PICK UP(12)

IPR-SHAFT FEED

IPR-SHAFT FEED IDLER

IPR-SHAFT PICK UP

GROUND_FEED

IPR-GUIDE_FEED, 16

PMO-HOUSING P/UP

PMO-ROLLER FEED L

PMO-ROLLER FEED S

PMO-SUB HOLDER FEED

PMO-FRAME_FEED

PMO-HOLDER FEED(1)

PMO-HOLDER FEED(2)

PMO-IDLE PICK_UP

PMO-ROLL_FEED, DRV 12

RMO-RUBBER PICK_UP

RMO-LEVER PICK_UP

SPRING PICK UP(12)

RING-CS

Samsung Electronics

5-10

Exploded Views and Parts List

5-2-8 Cassette Exploded View

NO.

Description

Q’ty

MEA UNIT FEEDER CST (500)

PMO-COVER GUIDE EXT

PMO-FRAME CASSETTE

PMO-GUIDE EXT CST

PMO-GUIDE PAPER

PMO-GUIDE SIDE CST

PMO-INDICATOR EMPTY

PMO-SIDE GUIDE EXT

PMO-SUB GUIDE CAST

PMO-HOLDER_INDICATOR

PMO-LOCKER PLATE

IPR-FINGER

IPR-GUIDE EXT LOCK

IPR-GUIDE PAPER SCF

IPR-GUIDE PLT PAPER

IPR-PLATE KNOCK UP

IPR-PLATE SPR LOCK

IPR-SPR PLT G/SIDE

SPRING PLATE K/UP 1

SPRING PLATE K/UP 2

SPRING LOCKER,PLATE

RPR-PAD CST

PMO GUIDE PAPER SIZE

SCREW TAPTITE M3 x 10 NI

LABEL(R)-CASSETTE

GUIDE PAPER DUMMY

Samsung Electronics

5-11

6. Block Diagram

6-1 Video ControllerBlock Diagram

DATA(0:31)

ROM

ADDR(2:22)

100PIN DIMM

ADDR(0:31)

DATA(0:31)

A20

29LV 160

16Mbit Flash Memory

29LV 160

Regulator

2.7V

16Mbit Flash Memory

RD_FLA SH*

Mask Font ROM

K3P5V1000D-GC,High

WR_FLASH1,2,3

Mask Font ROM

K3P5V1000D-GC,Low

CPU

POWER PC

TS*, TT1,nTSBT,TSIZ(0:2)

nTA, RST*, INT*, nTS,nBG

SYSCLK

PPC603ei

166MHz

74F32

RCS(0:3)

FS781

Frequency

Scaling EMI

Attenuator

System clock

11.1MHz(OSC)

74F04

nWR

F_W R_E

nFSYNC

VCLK*

SPGPi

Video-Clock

61.23307M Hz

Memory Data Bus

SDRA M

DRAMD(0:31)

ADDR(2:18)

100PIN DIMM

Memory Address Bus

DRAMA(0:11)

SDRAM _CAS,SDRAM_RAS,

BA0*,BA1* ,SDRAM_WE* ,

SDRAM _CS(0:1),SDQM (0:3),

SD_CLK (1:2) ,CL KE

DATA(16:31)

OPTION

nWAIT

nWR

64Mbit SDRAM

K4S641632C

Network

Card

nWAIT

nRD

INT*

64Mbit SDRAM

K4S641632C

nWR

TT1

93C66

4Mbit

Ser i al

BRDIN*

IOCS1

IOCS2

EI RQ2

EIRQ(0:3)*

nIOCS(0:5)*

EEPROM

C7733

Supply Voltage

Supervi sor

RESET*

HVPS

THV_PWM *,MHV_PWM*,

DEV_PWM,THVEN*,

L D ON * ,PM OT OR*,

ACK*, BUSY,

SELECT, ERROR,

FAULT*

LREADY*, LSYNC*

LSU

74ACT245

Transceiver

Centronics

Connector

PD ( 0:7)

LSUCLK,nVIDEO*

DATA(0:7)

SELIN*

STROBE*

AUTOFD*

INI*

IOCS0

74HCT273

PANEL 8Pi n

Engine I/F Connector

D Fli p-Flop

Computer

OP Panel

Engine Controller B'd

6-1

Block Diagram

6-2 Engine Block Diagram

HVPS control

• THV READ

A0 - A15

ADC

PWM

PROGRAM

MEMORY

• THV / MHV / DEV PWM

(27C512)

D0 - D7

STEP MOTR

DRIVER

(TEA3718 for Main Motor

& 2916 for Sub-Motor)

SENSOR

Feed_Sensor

Cover_Open

SCF_RDY

P_Empty

74HC245

P_Exit

SOLENOID DRIVE

• MAIN CLUTCH

• MP CLUTCH

CPU

MP_Empty

Output_Full

Fuser_SW

--------------------

Size1

(KS88C4616)

11.59158MHz

Size2

Size3

D_T_Sensor

DET_CRU

FUSER CONTROL

ADC

Thermister value

2nd cassette

Feeder

(opt ion)

PTL

FAN

VIDEO

CONTROLLER

CPU Clock (X-tal)

11.59158MHz

Interface

6-2

7. Connection Diagram

Main

Solenoid

PTL C t r l

Feed Sensor is on B’d

PTL

CN 3

1 - GN D_5

2 - GN D_5

3 - 5 V

1 - + 5 V

Micro Switch on Board

In-24V

Out-24VS

2 - SCF_STS

3 - SCF_CM D

4 - SCF_CL K

5 - SCF_RDY

6 - + 2 4V S

7 - GN D5

Second Cassette

Feeder(Option)

C N 7

4 - 5 V

Thermistor

5 - GN D_2 4

6 - GN D_2 4

7 - 2 4 V S

8 - 2 4 V S

9 - 2 4 V

CN 1

CN1

HVPS

8 - GN D24

Therm 1

Therm 2

1 - M ot or 1 _PA

2 - M ot or 1 _PA *

3 - M ot or 1 _PB*

4 - M ot or 1 _PB

CN 2

1 0- 2 4V

CN 8

Main Motor

1 - 2 4 V S

Jo in t typ e

2 - GN D_2 4

3 - 5 V S

1 - N .C

1 - MP_EM PT Y*

2 - GND5

3 - 5V

MP Empty

Sensor

4 - GN D5

2 - FA N _J

C N7

CN5

1-Therm 1

2-Therm 2

CN 2 4

CN 2 2

5 - T H V _P WM

6 - T H V REA D

7 - T H V _E N*

8 - M HV _PW M

9 - DE V _PW M

1 0- PT L

3 - N .C

Engine B’d

4 - M P_SOL _J

5 - N .C

1 - 24VS

2 - MP_SOL

1 - 5V

2 - Ex it_sig nal

3 - GND_5

MP Solenoid

6 - M T R_EN_A

7 - N .C

Exit

Connector

Joint B’d

Sensor

1 - REA DY*

2 - n EB SY

3 - n EM SG

8 - M T R_PA

9 - SIZE 1_J

1 0- M T R_E N_B

1 1- SIZE2 _J

1 2- M T R_P B

1 3- SIZE3 _J

1 4- + 24 V S

1 5- DGND

1 6- A GND

1 7- MP _E M PTY_J

1 8,19 - DGND

2 0- 5 V

1 - SIZE 1

2 - SIZE 2

3 - SIZE 3

4 - GN D5

1 1- GND5

1 2- GND5

Size Detector

Sensor

CN6

CN4

4 - CCL K

5 - n CM SG

CN 17

CN 1

6 - n FSYNC

7 - n PRIN T

8 - L SY NC*

9 - T H ERM 1

1 0- T HE RM 2

1 1- COV ER_OPEN

1 2- P_EX IT *

1 3- L DON*

1 4- PM OT OR*

1 5- L RE A DY *

1 6- L SUCL K

1 7- OUT PU T _FU L L *

1 8- DET _CRU

1 9- 3 .3 V

RAM_DIMM

100pin slot

CN 20

1 - FA N Con tro l

2 - N.C.

3 - 24 V S

CN 29

CN 28

(Option) for RAM Expand

DC FAN

ROM_DIMM

(Option) for Demo SIMM

100pin slot

CN2

CN 25

CN 6

1- 5V

2- Signal

3- GN D 5

1 - M T R_PA

2 - M T R_EN_A

3 - M T R_PB

4 - M T R_EN_B

5 - + 2 4V S

6 - GN D24

7 - + 5 V

Output Full

sensor

T_se n

sor

1 - GN D

DCU

(For SystemTest)

2 - Ou tpu t_Full*

3 - T _SNE SOR

4 - V CC

CN 19

Joi nt

B’d

Controller

B’d

1- 5V

2- T_s en

3- GN D 5

C onnect ion

Term inal

2 0- 3 .3 V

2 1- 3 .3 V

1 - 5 V

2 2- V IDEO*

2 3- V CC

8 - GN D5

2 - RXD

CN 5

1- 5V

2- s ignal

3- GN D 5

1 - L SU_5V

2 - 5V

3 - T X D

M icr o- Sw it c h

(For L SU 5V S C ut)

2 4- V CC

CN 2

CN 23

CN 21

4 - GN D- 5 V

1 - MT R_PA

2 5- nV IDE O*

2 - MT R_PA *

2 6- GND5

SUB_MOTOR

JOINT B’D

CN 1

SUB_MOTOR

3 - MT R_PB

4 - MT R_PB *

2 7- GND5

1 - L SU _CL K

2 - L REA DY*

3 - P _M OT OR*

4 - GN D_2 4

5 - 2 4 V S

Toner

sens or B ’d

2 8- GND5

1 - T H V _P WM *

2 - T H V _REA D

3 - T H V EN*

4 - M HV _PW M

5 - DE V _PW M

6 - P T L

7 - T_SEN SOR

8 - Reser ved

9 - Reser ved

1 0- GND2 4

1 - 2 4 v

2 - N .C

CN 6

CN 2

in t he CRU

Fuser _Switch

6 - N .C

LSU

3 - FU SER_2 4V S

7 - L SU _V DO*

8 - L D_ON*

9 - GN D5

C N 26

CN 4

1 - GN D5

2 - + 5 V

3 - GN D5

4 - + 5 V

5 - GN D5

6 - + 3 .3V

7 - GN D24

8 - + 3 .3V

9 - GN D24

1 0- 2 4V

1 0- L SU_5V

1 1- HSYN C*

1 - V CC

2 - GN D5

3 - L E D1

4 - L E D2

5 - L E D3

6 - L E D4

7 - K E Y1

8 - K E Y2

9 - L E D5

1 0- K EY 3

1 - N .C,. 2 - N.C., 3- 5 V , 4 - /IOCS3, 5- D3 1, 6- D3 0,

7 - D2 9, 8- GN D5 , 9 - D28 , 1 0 - D2 7, 11 - D26 ,

1 2- GND5 ,1 3 - D2 5, 1 4- D24 , 1 5 - / EIRQ1, 16 - GND5,

1 7- A 5 , 1 8- A 4, 1 9- A 3, 20 - /E IRQ0 ,2 1 - A 2 ,22 - D23 ,

2 3- D22 , 2 4 - A1 7 , 2 5- D2 1, 26 - A1 6 , 2 7- D2 0, 28 - A 15 ,

2 9- D19 , 3 0 - A1 4 , 3 1- D1 8, 32 - A1 3 ,

3 3- D17 , 3 4 - A1 2 , 3 5- D1 6, 36 - A1 1 , 3 7- A 6 , 3 8- A 1 0,

3 9- / RESET , 40 - A 9, 41 - /W A IT , 42 - A 8, 43 - /IOCS3,

4 4- A 7 , 4 5- / IOCS3 , 4 6- N.C., 4 7- N.C., 48 - GND5 ,

4 9- A 1 8, 50 - /RD, 51 - /W E, 52 - GND5 , 5 3- N.C., 5 4- N.C.,

5 5- / EIRQ1 , 5 6- GND5 , 5 7- N .C., 5 8- 5 V , 5 9- 5 V , 6 0 - 5 V

( 60 pin Co nn ect or )

SMPS B’d

CN 3

CN 18

Panel B’d

Networ k

I/F Car d

1 1- GND2 4

1 2- 2 4V

1 3- GND2 4

1 4- 2 4V

1 5- FUSE R_ON

1 6- FUSE R_24

CN 2 7

(Option)

36Pin

Par allel Por t

3 6 Pin

CN 30

CN 31

HOT

Ne utra l

P1284 Con.

CN 5 02

CN 5 01

HOST

(PC )

Heat Lamp (Fuser)

AC In-Let

4Pin

USB P or t

U SB Jac k

HOT

Ne utr al

Power SW

110V for USA

220V for EU

7-1

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