Samsung SF 430 Service Manual

SERVICE

SAMSUNG FACSIMILE

SF-430

Manual

FACSIMILE CONTENTS

1. Precautions

2. Specifications

3. Disassembly and Reassembly

4. Troubleshooting

5. Exploded Views and Parts List

6. Block Diagram

7. Connection Diagram

ELECTRONICS

2002

Printed in Korea.

VERSION NO. : 1.01 CODE : JB-0022A

This service manual is also provided on the web, the ITSELF system Samsung Electronics Co., Ltd.

“http://itself.sec.samsung.co.kr”

- This Service Manual is a property of Samsung Electronics Co.,Ltd. Any unauthorized use of Manual can be punished under applicable

International and/or domestic law. -

This manual is stated and

provided for service description.

All rights reserved. Any parts of the information in this manual are prohibited from free duplication, use or translation without prior written approval except in cases allowed by the Copyright Act. Specifications are subject to change without prior notice.

Samsung Electronics Digital Printing CS Group

1-1

Samsung Electronics

1. Precautions

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

1-1 Safety Precautions

1-2 Precautions on Disassembly and Reassembly

1. Safety Precautions

There are some electric or machinery parts with safety related property. If the parts replaced are different from the original, the safety may not function. Even if the part could allow higher voltage than that of the part used, do not replace it and use a regular product clarified in specifications.

2. Be careful not to leave a switch, a cover or a safety device out when reinstalling or assembling the product after repair.

3. Replacing Precautions

Do not change or add parts as you like. You cannot benefit from such a remodeled product at your will during the term of guarantee.

4. You must replace overheated or damaged parts or cords with regular products. Please solve the problem causing any damage or overheating and troubles beforehand.

Especially mind the safety on the part with this mark.

You must use regular parts described in specifications for the parts inflammable and where the current can be flown. Otherwise any hazard such as an electric shock or a fire could occur .

Very careful precautions should be taken when replacing parts. Before replacing, please check cables because you cannot put the cables that you removed for replacing parts into the proper place if you would not make sure of where they were connected and in which condition.

Please do the following before disassembling for a repair or replacement of parts.

1. Pull out paper cassette, printer cartridge installed. Especially careful not to be scratched by the surface of developer or not to expose them to light.

2. Turn the power switch off.

3. Take out the power plug, printer cable from the printer.

4. Use only the same type of part as original when replacing parts.

5. Do not force to open or fasten plastic material components.

6. Be careful that small parts such as screws should not get in the printer.

7. When disassembling, assembling, also observe small components are located in place.

8. 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.

Releasing Plastic Latches

Many of parts are held in place with plastic latches. The latches break easily : release them carefully. To remove such parts, press the hook end of the latch away from the part to which it is latched.

Certain semiconductor devices can be easily damaged by static electricity. Such components are commonly called “Electrostatically Sensitive (ES) Devices”, or ESDs. Examples of typical ESDs are: integrated circuits, some field effect transistors, and semiconductor “chip” components. The techniques outlined below should be followed to help reduce the incidence of component damage caused by static electricity.

1. Immediately before handling a semiconductor component or semiconductor-equipped assembly, drain off any electrostatic charge on your body by touching a known earth ground. Alternatively, employ a commercially available wrist strap device, which should be removed for your personal safety reasons prior to applying power to the unit under test.

2. After removing an electrical assembly equipped with ESDs, place the assembly on a conductive surface, such as aluminum or copper foil, or conductive foam, to prevent electrostatic charge buildup in the vicinity of the assembly .

3. Use only a grounded tip soldering iron to solder or desolder ESDs.

4. Use only an “anti-static” solder removal device. Some solder removal devices not classified as “anti-static” can generate electrical charges sufficient to damage ESDs.

5. Do not use Freon-propelled chemicals. When sprayed, these can generate electrical charges sufficient to damage ESDs.

6. Do not remove a replacement ESD from its protective packaging until immediately before installing it. Most replacement ESDs are packaged with all leads shorted together by conductive foam, aluminum foil, or a comparable conductive material.

7. Immediately before removing the protective shorting material from the leads of a replacement ESD, touch the protective material to the chassis or circuit assembly into which the device will be installed.

8. Maintain continuous electrical contact between the ESD and the assembly into which it will be installed, until completely plugged or soldered into the circuit.

9. Minimize bodily motions when handling unpackaged replacement ESDs. Normal motions, such as the brushing together of clothing fabric and lifting one’s foot from a carpeted floor, can generate static electricity sufficient to damage an ESD.

1-3 ESD Precautions

Precautions

1-2

Samsung Electronics

CAUTION:

Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.

Precautions

1-3

Samsung Electronics

1-4 Tools for Troubleshooting

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

DVM(Digital Volt Meter)

Standard: Indicates more than 3 digits.

Electronic Scale

Standard: Equipment to check the weight of consumables supplied by Samsung Electronics. (The gram unit can be measured.)

Driver

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

Pinset

Standard: For general home use, small type.

Cotton Swab

Standard : For general home use, for medical ser-

vice.

Cleaning Equipments a IPA(Isopropyl Alcohol)dry cloth or a soft stuff neutral detergent.

Software(Driver) installation CD ROM

Mind your hands not to be touched when you disassemble and reassemble PBAASS'Y, such as the main board.

Note

Samsung Electronics

2-1

2. Specifications

2-1 Printer Engine

Technology

Speed Color

Mono

Resolution

Color Mono

Printing Width

Feeding Method

Automatic

Manual Tray Emulation Printer Driver Interface

Thermal Inkjet 2-pen & Print Head Swapping Type 7 ppm at Draft Mode 14 ppm at Draft Mode True 600 x600 dpi (2400 x1200 dpi Addressable) True 600 x600 dpi (2400 x1200 dpi Addressable) 203mm 100 Sheets of 20lb cut sheets ( Max 10mm ) No Host Based Printing (GDI) Windows 98/ME , Windows 2000/XP USB(without HUB Mode) and Centronics 1284

2-2 Ink Cartridge

Babbage mono standard Birch color

Model No. M50 C60 Print Head 208 nozzles 192 nozzles Ink type Pigment Dye Ink Color Black (Babbage) Color (Birch) Ink Yield Standard about 600 sheets (5% Pattern, A4) about 275 sheets (15% Pattern, A4)

High yield about 1075 sheets (5% Pattern, A4) about 275 sheets (15% Pattern, A4)

Samsung Electronics

Specifications

2-2

2-3 Facsimile

(*3) Monochromatic CCITT NO. 1 CHART can be saved by 80 sheets per 1.0M Byte.

Compatibility Scan method Scan width Scan Resolution Transmission Speed Scan Method ADF Guide Stacker Paper Tray Modem Speed Coding Method LCD

Resolution & Type

Contrast Capacity (*3) Back-up Time Confidential Forced Memory Tx. Memory Rx.

ITU-G3 CIS , Sheet-feed Max. 216mm, Effective : 210mm 600 x 1200 dpi 3 sec (standard resolution , MMR , 33.6 kbps) True color , 256 gray ,Block/White 30 sheets of 20lbs Document Input Guide Document Output Stacker/Paper Stacker BIN Type (Without Manual Tray)

33.6 Kbps MH, MR, MMR, JPEG, Error Correction Mode 2 Lines Each of 16 Characters

- Standard : 200 x100 dpi

- Fine : 200 x200 dpi (Default)

- Superfine : 300 x 300 dpi

- Color : 200 x 200 dpi (Standard : Low quality, Fine : High quality compression)

Lightest/Lighten/Normal/Darken/Darkest/ 2 Mbyte Minimum 30 minutes No Yes Automatic reception when paper empty.

GENERAL

SCANNING

MEMORY

Samsung Electronics

Specifications

2-3

Facsimile (continued)

TELEPHONE Speed Dial 70 Locations

Chain Dial No On-hook Dial Yes, 1-Key Last Number Redial Yes, 1-Key Auto Redial Yes Hold & Mute No Pause Yes, Use Redial Key Ringer Volume S/W Option Setting (4Steps) Tone/pulse Select S/W Option setting DRPD US : Yes, Other Country : No

REPORT TX/RX Journal Yes & LIST Image TCR Yes, Reduction of First Page Sent by Memory Tx

System Data Yes Tel Number List Yes Self Test Yes

COPY Multipage Copy Upto 99 Pages

Gray Scale 256 Levels Resolution 600 X 600 dpi Speed Mono 10 cpm

Color 5 cpm

Zoom Range 20 % ~ 400 %

TEL I/F Answering I/F Yes

Ext. Phone 1-jack, Extension Phone Transfer

OTHERS Sensors Paper Jam, Cover Open

Real Time Clock Yes RTI Y es

Samsung Electronics

Specifications

2-4

2-4 Scanner

Compatibility TWAIN Technology Platen CIS Light Source for Color CIS RGB LEDs (Line Order Control)

2-5 Power & Size

2-6 Accessaries

Power Source 220V~240V, 50/60Hz, 0.5A Dimensions (W X D X H) With the paper support and out tray retracted :439.8 X326.6 X 192.9 mm

With the paper support and out tray extended :439.8 X 602.5 X 192.9 mm

Weight (Packed Weight) 5.6Kg (8.0Kg: Packed Weight)

Tel Line Power Cord FAX Driver Ink Cartridge Manual Carrier Sheet

1EA 1EA 1 CD - ROM INK-M50 (MONO) 1EA, INK-C60 (COLOR) 1EA Yes No

3-1

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 or replaced, any cables disturbed by the procedure must be replaced as close as possible to their original positions. Before removing any component from the machine, note the cable routing that will be affected.

Whenever servicing the machine, you must perform as follows:

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

2. Move the printer cartridge to far right to cap the nozzle.

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.

1. Lift the control panel using hand.

2. Push the bushing on both ends of the roller slightly inward, then rotate it until it reaches the slot as shown below. Then lift the roller out.

Note : Check the roller for any dirt. If dirty, wipe it off

with soft cloth dampened with IPA(Isopropyl Alcohol). If the roller is heavily worn, replace it with a new one.

3-2 White Roller Ass’y

Bushing

White Roller

Control Panel

Disassembly and Reassembly

3-2

3-3 Top Cover Ass’y

1. Lift the control panel and open the print cartridge compartment cover. Remove the white roller ass’y. Remove the six screws shown below.

2. Remove the three screws shown below and take out the top cover ass’y.

Cartridge Compartment cover

Control panel

Top cover ass’y

Disassembly and Reassembly

3-3

3-4 Base Ass’y

3-4-1 Rollers (ADF Roller, Exit Shaft)

1. Before you disassemble the rollers, you should remove:

– Top Cover Ass’y (see page 3-3)

2. Take out the rollers from the base ass’y.

Note : Clean the surface of the rollers with IPA

(Isopropyl Alcohol). After wiping them, you must dry them completely.

3-4-2 CIS (Contact Image Sensor)

1. Before you disassemble the CIS, you should remove:

– Top Cover Ass’y (see page 3-3)

2. Remove the drive roller as described in ‘3-4-1 Rollers’.

3. Remove the one screw securing the CIS ass’y and unplug the CIS harness. Take out the CIS ass’y .

4. Unlatch two point then remove the CIS from the bracket.

Note: Be careful not to lose the springs.

Note : Check the glassy surface of the CIS for any

stain or scratch. If stained, wipe off with IPA (Isopropyl Alcohol). If it is heavily stained or scratched, replace it with a new one.

ADF Roller

Exit shaft

CIS

Spring

Bracket

CIS harness

CIS ass’y

ADF Roller

Disassembly and Reassembly

3-4

1. Before you disassemble the Scan Motor, you should remove:

– Top Cover Ass’y (see page 3-3)

2. Unplug the motor connector from the main PBA. Make sure the harness is released from five hooks securing the harness as shown below.

3. Remove the two screws as shown below and take out the scan motor ass’y.

4. Remove the two screws securing the motor to the motor bracket.

3-4-3 Scan Motor

Motor harness

Main PBA

Scan motor ass’y

Disassembly and Reassembly

3-5

3-4-4 SMPS and Centronics B’d

1. Before you disassemble the SMPS and Centronics B’d, you should remove:

– Top Cover Ass’y (see page 3-3)

2. Unplug the SMPS connector from the Main PBA. Make sure the harness is released from the hook as shown below.

3. Remove the one screw securing the ground wires to the bracket as shown.

4. Remove the one screw securing and remove the SMPS to the Main Frame.

5. Unplug the Centronics B’d connector from the

Main PBA.

6. Remove two screws securing and then remove

centronics B’d.

SMPS ground wire

LIU ground wire

Disassembly and Reassembly

3-6

3-4-5 LIU PBA

1. Before you disassemble the LIU PBA, you should remove:

– Top Cover Ass’y (see page 3-3)

2. Remove the one screw securing the ground wires to the bracket.

3. Unplug the LIU connector from the Main PBA.

4. Pulling the snap fits locking the PBA outward, push up the LIU PBA.

5. Unplug all the connectors from the LIU PBA.

Bracket-LF

SMPS ground wire

LIU ground wire

LIU PBA

Disassembly and Reassembly

3-7

3-4-6 Speaker Ass’y

1. Before you disassemble the speaker , you should remove:

– Top cover Ass’y (see page 3-3)

2. Remove the speaker .

Disassembly and Reassembly

3-8

3-5 OPE Ass’y

3-5-1 ADF Rubber Pad

1. Open the OPE unit.

2. Insert a flat blade screw driver and pinset into the slot as shown below, and release the latches. Take out the Holder Rubber, Sheet ADF and the Rubber ADF.

Notes

• When you reassemble the them, be sure that the Rubber ADF, Sheet ADF and Holder Rubber fit into the guide boss and the Holder Rubber latches fit into the corresponding hole. Then push firmly until it clicks.

3. Clean the surface of the rubber pad with IPA

(Isopropyl Alcohol). After wiping it, be sure to dry it. Check the rubber wear. If the wear reaches 1/2 its original thickness, replace it with a new one.

Holder Rubber

Rubber ADF

Rubber ADF Sheet ADF

Holder Rubber

Rubber ADF

Guide Boss

Sheet ADF

Pinset or Screw Driver

Safely Precautions :

Do not force to open or fasten plastic material components.

Disassembly and Reassembly

3-9

3-5-2 OPE Unit

1. Before you disassemble the OPE unit, you should remove:

– Top Cover Ass’y (see page 3-3)

2. Turn the tie stopper 90 degrees as shown below and take out the OPE unit.

OPE unit

Tie stopper

Disassembly and Reassembly

3-10

3-5-3 OPE PBA

1. Before you disassemble the OPE PBA, you

should remove:

– OPE Unit (see page 3-5-2)

2. Remove the four screws securing the OPE unit.

3. Remove the nine screw and take out the PBA with LCD.

Notes:

• Do not turn the OPE unit upside down after you

remove the screws securing the PBA. Keys and rubber contacts may be separated and easily lost.

• When you reassemble the OPE unit, make sure

the keys are in correct position.

• When you reassemble the PBA, secure the screws

according in the order of the number printed on the PBA.

• After reassembling, operate the machine to make

sure it works properly.

• After reassembling, make sure the LCD is not

blocked.

OPE PBA

Disassembly and Reassembly

3-11

3-6-1 Printer Unit

1. Before you disassemble the printer unit, you should remove:

– Top Cover Ass’y (see page 3-3)

2. Take out the Guide Extension.

3. Take out the Dummy ASF.

4. Remove the three screws securing the printer unit, and unplug the eight connectors from the Main PBA. Take out the printer unit.

Note: When you reassemble the unit, do not pinch

or short the wire harness.

Guide Extension

Dummy ASF

Main PBA

CR motor

TX motor

LF motor CIS

Cover Open Sensor

USB Speaker

LIU OPE

SMPS

Parallel (IEEE1284)

Print Head (CR Ass’y)

3-6 Printer Ass’y

Disassembly and Reassembly

3-12

3-6-2 ASF Feeder Ass’y

1. Before you disassemble the ASF feeder ass’y, you should remove:

– Top Cover Ass’y (see page 3-3)

2. Unplug all connectors from the Main PBA and remove the three screws shown below.

3. Remove the ASF feeder ass’y from the printer unit by pushing the tab inward and take the ass’y out in the direction of arrow.

3-6-3 Home Ass’y

1. Before you disassemble the home ass’y, you should remove: – Printer Unit (see page 3-6-1)

2. Remove one screw and pushing the both ends of the home ass’y, take out the ass’y in the direction of arrow.

ASF feeder ass’y

Home ass’y

Disassembly and Reassembly

3-13

3-6-4 Carriage Ass’y

1. Before you disassemble the carrier ass’y, you should remove:

– Printer Unit (see page 3-6-1)

2. Take out FRC cable from the main PBA, take out 2 CR springs that fix CR shaft, and then separate carriage Assembly .

3-6-5 Main PBA

1. Before you disassemble the Main PBA, you should remove:

– Top Cover Ass’y (see page 3-3)

2. Remove the two screw securing the Main PBA.

3. Unplug all connectors from the Main PBA.

4. Pull the sensor lever towards you and take out the Main PBA.

CR shaft

Carriage ass’y

FPC cable

Sensor Lever

Disassembly and Reassembly

3-14

3-6-6 Base Frame Ass’y

1. Before you disassemble the base frame ass’y, you should remove: – Printer Unit (see page 3-6-1) – Holder Roller Ass’y

2. Remove the friction ass’y, then take out the actuator feed.

3. Pull out the base frame ass’y.

3-6-7 Feed Roller Ass’y

1. Before you disassemble the feeder roller ass’y, you should remove:

– Printer Unit (see page 3-6-1) – Base Frame Ass’y (see page 3-6-6)

2. Remove the bearing feed from the main frame. Pull the feeder roller in the direction of arrow and

take it out.

Base frame ass’y

Feed Roller

Bearing Feed

Disassembly and Reassembly

3-15

3-6-8 Line Feeder Bracket Ass’y

1. Before you disassemble the line feeder bracket ass’y, you should remove: – Printer Unit (see page 3-6-1) – Feed Roller Ass’y (see page 3-6-7)

2. Remove the two screws and take out the LF bracket ass’y.

LF bracket ass’y

4-1

Samsung Electronics

4. Troubleshooting

4-1 Setting-up System in User Mode

FUNCTION ITEM CONTENT DEFAULT

SYSTEM SETUP FAX NUMBER/NAME FAX NUMBER

FAX NAME DATE FORMAT EUROPE/USA EUROPE DATE/TIME LANGUAGE ENG/GER/FRE/ITA/SPA/POR/DUT ENGLISH DISCARD SIZE 0~30MM 20 MM RINGER VOLUME OFF/LOW/MID/HIGH MID ALARM VOLUME ON/OFF ON KEY VOLUME ON/OFF ON DIALING MODE TONE/PAUSE TONE CLOCK MODE 24HOURS/12HOURS 24 HOURS USB MODE FAST/SLOW FAST SET DEFAULT CONTRAST

QUALITY

COPY PAGE

ZONE RATE

RESOLUTION

FAX SETUP SEND FORM MEMORY ON/OFF ON

SENDING CONFIRM ON/OFF/ERROR ERROR FAX PAPER SIZE LETTER/A4/LEGAL A4 AUTO REDUCTION ON/OFF ON SAVE TOLLTIME START TIME _ _ : _ _ RINGS TO ANSWER 1-7 TIME 1 STAMPRCV. NAME ON/OFF OFF RCV. START CODE * _ * 9 DRPD MODE ON/OFF OFF ECM MODE ON/OFF ON CALLER ID ON/OFF OFF AUTO JOURNAL ON/OFF ON

COPY SET UP PAPER SIZE LETTER/A4/LEGAL A4

PAPER TYPE PLAIN/INKJET/PHOTO/TRANSP ARENCY PLAIN PAPER COLLATE ON/OFF OFF

ADVANCED FAX BROADCASTING

DELAYED FAX PRIORITY FAX SEND POLLING ADD SCHEDULE CANCEL SCHEDULE

REPORT/HELP HELP LIST

SENT JOURNAL RECEIVED JOURNAL PHONEBOOK SEADING CONFIRM SCHEDULE INFORM SYSTEM DATA SELF TEST CID LIST

GROUP DIAL SET MEMORY CLEAR FAX NUMBER/NAME

DIAL/SCHEDULE JOURNAL DEFAULT SETUP

MAINTENANCE CLEAN CARTRIDGE

ALIGN CARTRIDGE VIEW INK LEVEL "COLOR : _/8 , BLOCK : _/8" ADJUST SHADING REMOTE TEST ON/OFF OFF

4-2

Troubleshooting

Samsung Electronics

4-2-2 Setting-up System in TECH MODE

4-2 Tech Mode

4-2-1 HOW TO ENTER TECH MODE

In TECH MODE, the technician can check the machine and perform various test to isolate the cause of a malfunction. To enter the TECH MODE, press MENU, #, 1, 9, 3, 4 in sequence, and the LCD briefly displays ‘T’, the machine has entered

service (tech) mode. While in TECH MODE, the machine still performs all normal operations. To return to normal user mode, press MENU, #, 1, 9, 3, 4 in sequence again, or turn the power off, then on by unplugging

and plugging the power cord. Options changed while in TECH MODE do not remain changed unless you clear the machine’s memory. Because the explanation of the User Mode items is already mentioned at the User guide in detail, It will not be described at

Service manual.

FUNCTION ITEM CONTENT DEFAULT

SYSTEM SETUP MODEM TEST

DTMF TEST ROM TEST Display ROM version PROGRAM DOWNLOAD AGING TEST

FAX SETUP MODEM SPEED 2.4/4.8/7.2/9.6/12.0/14.4/28.8/33.6 26.4 KBPS

SEND FAX LEVEL 0~15 -12 DBM RCV. FAX LEVEL 40~50 -43DBM DTMF HIGH LEVEL 00~15 8 DTMF LOW LEVEL 00~15 11 PAUSE TIME 1~9 4 SEC ERROR RATE 5%/10% 10% MAKE/BREAK RATIO 40/60~33/67 33/67 CNG DETECT COUNT 1~4 2 AUTODIALTIMEOUT 30~150 55 DIAL MODE LOC. USER/TECH USER

COPY SET UP The same items as user mode. ADVANCED FAX The same items as user mode. REPORT/HELP HELP LIST

SENT JOURNAL RECEIVED JOURNAL PHONEBOOK SEADING CONFIRM SCHEDULE INFORM SYSTEM DATA SELF TEST CID LIST PROTOCOL DUMP SHADING PRINT ASF TEST

GROUP DIAL SET The same items as user mode. MEMORY CLEAR ALL MEMORY CLEAR MAINTENANCE CLEAN CARTRIDGE

ALIGN CARTRIDGE VIEW INK LEVEL "COLOR : _/8 , BLOCK : _/8" ADJUST SHADING PATTERN OUTPUT REMOTE TEST ON/OFF OFF

4-3

Troubleshooting

Samsung Electronics

SYSTEM SETUP

• MODEM TEST :

Use this feature to hear various transmission signals to the telephone line from the modem and to check the modem. If no transmission signal sound is heard, it means that the modem part of the main board is poor.

• DTMF TEST :

DTMF (Dual Tone Multi Frequency) signal. When you press any key on the number keypad including * and #, you will hear the corresponding key tone.

• ROM TEST :

Use this feature to test the machine'S ROM. The result and the software version appear in the LCD display .

• PROGRAM DOWNLOAD :

Use this feature to download a new upgraded ROM file from a PC which is connected to the machine with a parallel cable (IEEE 1284).

< Download >

1. Connect printer to PC with a parallel cable(IEEE 1284.)

2. Select the PROGRAM DOWNLOAD function at the TECH MODE.

3. Input COPY/B FILENAME PRN at the MS-DOS and push the ENTER key . (filename : the latest ROM file name when the downloading)

4. After the download is completed, the system will be automatically initialized.

< Note >

Must perform the ADJUST SHADING after downloading a new ROM to adjust the standard value of the CIS.

• AGING TEST :

The function is to test the capacity of product in the production progress. Service person doesn't need to use it.

FAX SETUP

• MODEM SPEED :

You can set the maximum modem speed. Communication is done with modem speed automatically set at lower speed when communicating with the modem with lower speed since communication is done on the standard of the side where modem speed is low for transmission/reception. It is better set 26.4KBPS as default setting.

• SEND FAX LEVEL:

Y ou can set the level of the transmission signal. T ypically , the Tx level should be under -12 dBm.

Caution : The Send Fax Level is set at the best condition in the ship-

ment from factory . Never change settings arbitrarily.

• RCV FAX LEVEL:

- You can set the level of the receiving signal.

- The reception level may be too low due to the cable losses.

- If it is set to -43 dBm, the reception sensitivity will be between 0 and -43 dBm. If it is set to -48 dBm, the reception sensitivity will be between 0 and -48 dBm.

Caution : The Send Fax Level is set at the best condition in the ship-

ment from factory . Never change settings arbitrarily.

• DTMF HIGH LEVEL :

Select high frequency level when dialing in the MF mode.The input range is between 00~15dBm.

Caution : The Send Fax Level is set at the best condition in the ship-

ment from factory . Never change settings arbitrarily.

• DTMF LOW LEVEL :

Select high frequency level when dialing in the MF mode.The input range is between 00~15dBm.

Caution : The Send Fax Level is set at the best condition in the shipment

from factory. Never change settings arbitrarily.

• P AUSE TIME :

Pause time mean delay time (unit: second) inserted between dial number signal and the next number of signal in the automatic dial (One touch, Speed dial, Redial) and the manual dial.

Caution : The Send Fax Level is set at the best condition in the shipment

from factory . Never change settings arbitrarily.

• ERROR RA TE :

- When the error rate is about to be over the setting value, the Baud rate automatically lowers up to 2400 bps to make the error rate remain below the setting value.

- You can select the rate between 5% and 10%.

4-4

Troubleshooting

Samsung Electronics

• Make/Break RATIO :

Select the dial pulse make and break time: 40-60 or 33-67.

Caution : Send Fax Level is set at the best condition in the shipment from

factory. Never change settings arbitrarily.

• CNG DETECT COUNT :

The function is to control the CNG TONE cognition times for entering receiving mode from the AUT O MODE or ANS/FAX MODE.

• AUTODIAL TIMEOUT :

It is the certain time to be converting to ST ANDBYin case of a receiver doesn't answer when caller uses AUTO DIAL, such as ONE-TOUCH/SPEED DIAL/RESERVED SENDING and etc.

• DIAL MODE LOC. :

The function is to take care the DIALMODE SETTING, which is set in at USER MODE or TECH MODE differently by coun-

tries. If you select the USER MODE, you can choose DIAL MODE OPTION at the USER MODE.

4-2-3 REPORT/HELP

HELP LIST

It shows a brief description on the machine's basic functions and commands. Use it as a quick reference guide

SENT JOURNAL.

This journal shows a specific information concerning transmission activities, the time and dates of up to 40 of the most recent transmissions.

RECEIVED JOURNAL

This journal shows a specific information concerning reception activities, the time and dates of up to 40 of the most recent receptions.

PHONEBOOK

It lists all telephone numbers that have been stored in the machine.

SENDING CONFIRM

It shows the result of the last send operation.

SCHEDULE INFORM

This list shows a specific information on the documents currently stored for delayed transmission. It provides the operation number, starting time, type of operation, etc.

SYSTEM DATA

This list provides a list of the user system data settings and tech mode settings.

4-5

Troubleshooting

Samsung Electronics

SELF TEST

Using this pattern printout, you can check if the printer mechanism is functioning properly. Examine the pattern and look for a break in the diagonal line. If the diagonal lines are not broken, the printer mechanism is functioning properly .

CID LIST

In the country which supports CALLER ID, information of the dates and numbers of calls is stored when RING is receiving. (CALLER ID : it is a telephone service to send a caller's number to the receiver.)

PROTOCOL DUMP

This list shows the sequence of the CCITT group 3 T.30 protocol during the most recent sending or receiving operation. Use this list to check for send and receive errors. If a communication error occurs while the machine is in TECH mode, the protocol list will print automatically.

SHADING PRINT

With this print, you can check the scanning elements of the CIS Contact Image Sensor.

ASF TEST

The function is to test the function of ASF (AUTO SHEET FEEDER), and it is needed in the production progress. Service person doesn't need to use it.

4-2-4 Memory Clear

ALL MEMORY CLEAR

The function resets the system as its very first condition as setting in at the factory.

This function is needed to operate to reset the system to the initial value when the product is abnormally operated or malfunction. All the values are returned to the default values, and all the information, which set in by user, will be erased.

4-2-4-1 Method to use TECH MODE

Perform the MEMORY CLEAR at the TECH MODE.

4-2-4-2 Method to use CANCEL BUTTON

1. Turn off the power.

2. Keep pushing the CANCEL button till the MEMORY CLEARING is shown up at the LCD panel.

3. Turn on the power.

P1 P2 P3 P4 P5 P6 P7 P8 P9 P10 P11 P12 P13 P14 P15 P16

A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13

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