Samsung SCX 5015 Troubleshootin

Troubleshooting

5-1

5. Troubleshooting

In this chapter, it was mentioned about the functions for maintaining the product, how to ﬁnd the causes of the

inferiority, and troubleshooting method.

5-1 Preventative Maintenance

The cycle period outlined below is a general guideline for maintenance.

The example list is for an average usage of 50 transmitted and received documents per day.

Environmental conditions and actual use will vary these factors.

The cycle period given below is for reference only.

5-2 Error Messages

COMPONENT REPLACEMENT CYCLE

ADF Rubber 50,000 Pages

ADF Roller 50,000 Pages

Pick-up Roller 50,000 Pages

Transfer Roller 50,000 Pages

Fuser 50,000 Pages

Toner Cartridge 6,000 Pages

Drum Cartridge 15,000 Pages

ERROR MESSAGE DESCRIPTION SOLUTION

[BYPASS JAM] When the machine detected the non-feeding from

BYP ASS Tray .

Open the side Cover and clear the jam.

COMM. ERROR A problem with the facsimile communications has

occurred.

Try again.

DOCUMENT JAM Loaded document has Jammed in the feeder

When Document Jam aeeurred at ADF module

Clear the document Jam.

[DOOR OPEN ] The side cover is not securely latched. Clear the cover until it clicks in place.

DRUM WARNING When the machine has encountered the drum

life,14000 print pages.

Use little more change if “REPLACE

DRUM” is marked in LCD window.

[DUPLEX JAM]

OPEN/CLOSE DOOR

When the machine detected the duplex jam in the

middle of machine.

Clear the jam.

GROUP NOT AVAILABLE You have tried to select a group location where

only a single location number can be used, such

as when adding locations for a multi-dial opera-

tion.

Try again, check location for group.

HEATING ERROR During operation, Temperatare does not go up. Check thermister contact point & Heating

Lamp.

LINE ERROR Your unit cannot connect with the remote

machine, or has lost contact because of a prob-

lem on the phone line. When the mechine has a

problem in cause of fax data reception step

Try again. If failure persists, wait an

hour or so for the line to clear then try

again.

Troubleshooting

5-2

INVALID

CARTRIDGE

You have used unauthorised cartridge. You must use a Samsung approved car-

tridge.

LINE BUSY The remote FAX didn’t answer Try again.

LOAD DOCUMENT You have attempted to set up a sending opera-

tion with no document loaded.

Load a document and try again.

MEMORY FULL The memory has become full. Either delete unnecessary documents, or

retransmit after more memory becomes

available, or split the transmission into

more than one operation.

NO ANSWER The remote machine was not answered after all

the redial attempts.

Try again.

Make sure the remote machine is OK.

NO DEVELOPER

CARTRIDGE

When the machine detected the toner cartridge

has not been installed.

Install the Cartridge.

NO. NOT ASSIGNED The speed dial location you tried to use has no

number assigned to it.

Dial the number manually with the key-

pad, or assign the number.

[NO PAPER]

ADD PAPER

The recording paper has run out. The printer sys-

tem stops.

Load the recording paper in the paper

feeder.

[PAPER JAM 0]

OPEN/CLOSE DOOR

Recording paper has jammed in paper feeding

area.

Recording paper is jammed in pick-up unit

Press STOP and clear the jam.

[PAPER JAM 1]

OPEN/CLOSE DOOR

Recording paper has jammed inside the unit.

Recording paper has jammed in paper exit unit.

Clear the jam.

[PAPER JAM 2]

CHECK INSIDE

Paper has jammed in the paper exit area.

[TONER EMPTY] When the machine has encountered the Toner

Empty.

Replace the Toner Cartridge.

[TONER LOW] The toner is almost empty. Take out the toner cartridge and gently

shake it. By doing this, you can tempo-

rarily re-establish printing operations.

REPLACE DRUM When the machine has encountered the out of

from lifr, 15000 print pages.

Replace the Drum Cartridge.

RETRY REDIAL? The machine is waiting for the programmed inter-

val to automatically redial.

You can press START to immediately

redial, or STOP to cancel the redial

operation.

OPEN HEAT EROR Thermister does not connected to main board or

contact point is not coupled tightly in power on.

Check thermister contact point, Heating

Camp & Thermostat.

[OVERHEAT] The printer part has overheated. Your unit will automatically return to the

standby mode when it cools down to nor-

mal operating temperature. If failure per-

sists, call service.

SCANNER LOCKED Scanner is locked by locker. Check locker.

Connect the Flat-Cable.

ERROR MESSAGE DESCRIPTION SOLUTION

Troubleshooting

5-3

5-3 T ech Mode

5-3-1 How to Enter Service Mode

In service mode (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 service mode do not remain changed unless you clear the machine’s memory.

5-3-2 SYSTEM DATA

DIALING MODE

Select the dialing mode according to the user's line status.

• TONE: Electrical type of dial

• PULSE: Mechanical type of dial

SILENCE TIME

In ANS/FAX mode, after a call is picked up by the answering machine, the machine monitors the line. If a

period of silence is detected on the line at any time, the call will be treated as a fax message and the machine

begins receiving.

Silence detection time is selectable between limited (about 12 seconds) and unlimited time.

When '12 sec' is selected, the machine switches to receiving mode as soon as it detects a period of silence.

When 'unlimited'is selected, the machine waits until the answering operation is concluded even though a

period of silence is detected. After the answering operation is concluded, the machine switches to receiving

mode.

SEND FAX LEVEL

You can set the level of the transmission signal. Typically, the Tx level should be under -12 dBm.

Caution: The Send Fax Level is set at the best condition in the shipment from factory. Never change

settings arbitrarily.

ERROR RATE

When the error rate is about to be over the setting v alue, the Baud r ate automatically lo wers up to 2400 bps to

make the error rate remain below the setting value.

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

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 33.6Kbps as default setting.

Troubleshooting

5-4

5-3-3 MEMORY CLEAR

CLEAR ALL MEMORY

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 oper-

ated or malfunction. All the values are returned to the default values, and all the information, which set in by

user, will be erased.

< Method >

1. Select the [MEMORY CLEAR] at the TECH MODE.

2. Push the ENTER button.

3. Select you country.

4. Push the ENTER button then it will be all memory clear. .

NOTICE : Always perform the memory clear after replace the main board. Otherwise, the system may

not operate properly.

5-3-4 MAINTENANCE

CLEAN DRUM

Use this feature to get rid of the toner remained in the development unit, so you can get a clean printout.

Perform this feature if stains or specks appear on the printing materials and print quality falls.

Perf orm this feature several times until a clean printing material appears. The machine automatically pulls in a

sheet of paper,and prints out.The toner particles on the OPC drum surface is ﬁxed to the paper.

FLASH UPGRADE

It is Firmware Upgrade function and has two methods, Local and Remote.

More information can be found in the ﬁrmware upgrade items.

ADJUST SHADING

The function is to control to get the optimum scan quality by the speciﬁc character of the CCD(Charge Cou-

pled Device). If the copy image quality is unsatisﬁed, perform the function to check the condition of the print

out for checking whether or not having CCD trouble.

< Method >

1. Select the [ADJUST SHADING] at the TECH MODE.

2. Push the SET UP button then an image will be scanned.

3. After the scan, CCD SHADING PROFILE will be print out.

4. If the printed image is different to the image, the CCD is defect.

NOTICE :

When you test CCD, make sure

that the cover is closed.

Troubleshooting

5-5

ANSWER ON CNG

The function is to control the CNG TONE cognition times for entering receiving mode from the AUTO MODE

or ANS/FAX MODE

CLEAR COUNT

This function erases information of history such as replacement times of Developing part and OPC drum,

total printing pages, scan times, and etc.

• The items are in the below section of the System Data List, printed at TECH MODE.

• PASSWOEED: 1934

• Current Drum Page Count cannot be erased.

It is possible to erase at NEW DRUM function (USER MODE

⇒

MINTENANCE

⇒

NEW DRUM)

P A TTERN TEST

Using this pattern printout, you can check if the printer mechanism is functioning properly.

It is needed in the production progress. Service person doesn't need to use it.

ROM TEST

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

• FLASH VER : 1.00 V • ENGINE VER :1.00V

DRAM TEST

Use this feature to test the machine's DRAM. The result appears in the LCD display.

If all memory is working normally, the LCD shows << O K >>

SRAM TEST

Use this feature to test the machine's SRAM. The result appears in the LCD display.

If all memory is working normally, the LCD shows << O K >>

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.

PCL5e 1.48 07-19-2001

FIRMWARE VERSION : 1.00

ENGINE VERSION : 1.00

TOTAL PAGE COUNTS : 123

REPLACED TONER COUNTS : 1

EMULATION VERSION : PCL6 2.32 07-11-2001

CRU PRINTS : 123

REPLACED DRUM COUNTS : 1

PLATEN SCAN PAGE COUNTS : 23

ADF SCAN PAGE COUNTS : 10

CURRENT DRUM COUNTS : 112

< SYSTEM DATA LIST >

Troubleshooting

5-6

SWITCH TEST

Use this feature to test all keys on the operation control panel. The result is displayed on the LCD window

each time you press a key.

NOTIFY T ONER LOW

With this feature enabled, when the toner becomes low, the toner low information will be sent to ta speciﬁed

contact point, for example, the service company. After you access this menu, select ON, and when the LCD

prompts, enter the name and the number of the contact point, the customer's fax number, the model name,

and the serial number.

PROGRAM DIAL

It is a function setting transmitting conditions to transmit to speciﬁc address preliminary.

When user transmit speciﬁc address set this function, the conditionsapplied automatically.

Troubleshooting

5-7

5-3-5 REPORT/HELP

MSG. CONFIRM

It shows the result of the last send operation.

PROTOCOL LIST

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.

HELP

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

RECEPTION

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

most recent receptions.

TRANSMISSION

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

the most recent transmissions.

SYSTEM DATA

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

PHONEBOOK

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

SCHEDULE JOB

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.

ERROR CODE

It shows error history occurred using product.

S NSF 61005820003380140200001302090018010000

S/R FCF FIF DATA! ASCII

S CSI 2020202020202020202020202O20202020202020

S CSI 202020202020202020202022O202020220202020

R TSI 2020202020202020202020202O20202020202020

S DIS 00000000 01110111 00010111 00100010

R DCS 00000000 01100001 00010101 00000000

R TSI 2020202020202020202020202O20202020202020

R DCS 00000000 01100001 00010101 00000000

S CFR

R MPS

S MCF

S DCN

S FTT

S NSF 61005020003380140200001302090018010000

PROTOCOL DUMP LIST NOV-20-2001

Sending/Receiving

Name of signal

(Facsimile Control Field)

Facsimile Information Field

data described in hexdecmal code

FIF data described

in ASCII code

Troubleshooting

5-8

5-3-6 Firmware Upgrade

It is a new Firmware, and there are two Upgrade methods by local and remote.

5-3-6-1 Local Machine

RCP(Remote Control Panel) mode

This method is for Parallel Port.or USB Port Connect to PC and activate RCP(Remote Control Panel) to

upgrade the Firmware.

< Method >

How to Update Firmware using RCP

1. Connect PC and Printer with Parallel Cable or USB Cable.

2. Ex ecute RCP and select Firmware Update. Current Firmware version and Emulation Version are displayed

on Current version window.

3. Search Firmware ﬁle to update with Browse Icon.

4. Click Update icon, ﬁrmware ﬁle is transmitted to Printer automatically and printer is initialized when it ﬁn-

ished.

5. Click Refresh icon and check what is updated.

DOS Command mode

This method is just for Parallel Port. Connect to PC with Parallel cable and enter DOS Command to upgrade

the Firmware.

< Method >

a). The ﬁrst of all, need the ﬁles :

down.bat, down_com.bin, fprt.exe,

and

Rom File

: ﬁle name for upgrade.Save the ﬁles in the

same folder.

b). In the DOS, input as below and push the enter key. Then, it will be automatically upgraded.

c) There are two commands for the conditions of product.

* When the product is in idle condition

down "rom ﬁle"

* When the product is in idle condition(TECH MODE

→

MAINTENANCE

→

FLASH UPGRADE

→

LOCAL)

fprt "rom ﬁle"

d) Do not turn off the power while upgrading process.

Remote FAX

This is a function that a fax with the latest ﬁrmware sends ﬁles to a fax in long distance through telephone line.

< Method >

1. Operate a fax with the latest ﬁrmware to prepare it being upgrade.

(TECH MODE MAINTENANCE FLASH UPGRADE REMOTE)

2. Input the fax number, which needs to be upgraded.

(Several faxes can be upgrade at the same time. In this case, enter the each fax number.)

3. After push the enter button, send the ﬁrmware ﬁle by calling to the appointed number.

(Around 10~15 minutes needs to send the ﬁle.)

< Caution >

1. sending and receiving fax must be the same model.

2. A sending fax must be set up as ECM mode, and a receiving memory must be set up as 100%.

If not, the function operates abnormally.

Troubleshooting

5-9

5-4 ENGINE TEST MODE

The Engine Tests Mode supplies useful functions to check conducting condition of engine. It tests the con-

ducting condition of each device and displays the result of the test at the LCD. It is classiﬁed in 6. items (0~5),

and the functions of items are as bellows.

5-4-1 To enter the Engine Test Mode

Press

MENU, #, 1, 9, 3, 1

in sequence, and the LCD brieﬂy displays ‘T’, the machine has entered service

(tech) mode.

5-4-2 Diagnostic

5-4-3 ENGINE PRINT

When the function is on, sentence to explain the condition of engine is printed in the below section of the print-

ing output.

It is needed in the development progress. Service person doesn't need to use it.

No. Sub No. Engine tes t

0 1 Motor Test 1: On, 2: Off

2 PTL Test 1: On, 2: Off

3 Fan Test 1: On, 2: Off

4 Fuser Test

If its temperature is lower than the Standby

(160 C), the fuser is on, but if it is higher than

the Standby, the fuser is off.

: On, 2: Off

1 1 LSU Motor Test 1: On, 2: Off

2 LSU Hsync Test 1: On, 2: Off

3 LD On Test 1: On, 2: Off

4 LSU Operation 1: On, 2: Off

2 1 Feed Sensor Test Sensor O n : FEED SENSOR ON D isplay

Sensor O ff : FEED SENSOR OFF Display

2 Exit Sensor Test Sensor On : EXIT SENSOR ON Display

Sensor Off : EXIT SENSOR OF F D isplay

3 Cov er Sensor Test Se nsor On : COVER SENSOR ON Display

Sensor O ff : COVER SENSOR OFF Display

4 1’st CAST Emp ty Test Sensor O n : 1’st PAPER Em pty Displa y

Sensor O ff : 1’st PAPER N o Empty D isplay

5 MP Empty Sen Test Sensor O n : MP PAPER Em pty Display

Sensor O ff : MP PAPER No E mp ty Display

6 BIN FULL Sen TEST Sensor On : BIN F ULL SEN ON D isplay

Sensor O ff : BIN FULL SEN OFF D isplay

3 1 1’st C AST Solenoid Test 1: On, 2: Off

2 MP Solenoi d Test 1: On, 2: Off

3 Duplex Solenoid Test 1: On, 2: Off

4 1 MHV Test 1: On, 2: Off ( -1450v)

2 Dev Bias Test 1: On, 2: Off ( -450v)

3 THV EN/NEG Test 1: On, 2: Off

4 THV Test 1: On, 2: Off ( 1300v)

5 THV Trigger T est 1: On, 2: Off

5 1 All Function Test

For SMD Test, Push up key : Next function

All Function : N o.0~4

Remark

Troubleshooting

5-10

5-5 Troubleshooting

5-5-1 Scanner

5-5-1-1 COPY

PROBLEM ITEMS TO BE CHECKED. HO W TO SOLVE

White copy • Check the Scan-Cover open. • Room light can transit a thin original.

• Check shading proﬁle. • Remake shading proﬁle in the tech mode.

• Check white/black reference voltage in

Main PBA.

• Replace U16 if it is defective.

- U16-97 = 2.5V - U16-98 = 3.3V

- U16-99 = 1.5V

• Check turning the CCD Lamp on when

operating.

• If the CCD is defective, replace it.

- CN3-19 is 5.8V when white original copy-

ing for R, B and 3.5V for G.

Black copy • Check the CCD problem in Main PBA. • Check the CCD harness contact.

• Check shading proﬁle. • Remake shading proﬁle in the tech mode.

• Check the CCD problem in Main PBA. • If the CCD is defective, replace it.

- Cn3-19 is 7.3V when idle for R, B, and 5V

for G.

Defective image quality • Check shading proﬁle. • Remake shading proﬁle in the tech mode.

• Check the gap between original and scan-

ner glass.

• The gap above 0.5mm can cause a

blurred image.

• Check printing quality. • See “Print” troubleshooting.

Abnormal noise • Check the Scanner Motor and any

mechanical disturbance.

• Check the right position of the Scanner

Motor, and check the any mechanical dis-

turbance in the CCD carriaging part.

• Check the Motor Driver in Driver PBA. • If any driver is defective, replace it.

- U55-1 or U55-15 = 0V to 24V swing signal

when operating.

Troubleshooting

5-11

5-5-1-2 PC-Scan

PROBLEM ITEMS TO BE CHECKED. HO W TO SOLVE

Scanning Error • Check the printer cable installed. • Check correct installation, and use stan-

dard IEEE1284 cable.

• Check how TWAIN driver is installed. • Remove any other scanner driver.

• Reboot after reinstallation of the TWAIN

driver.

• Check the printer port(Parallel). • Check the parallel-port-related items in the

CMOS Setup.

As a printer port, Select ECP among

SPP(Normal), ECP, and EPP

modes(increase print-ing speed)

• Check harness contact.

• Check CN14 contact in Main PBA

• Check the IEEE1284 signal level. • If any signal level is defective, replace

Driver PBA.

- U36-66~74 in Main PBA = 0.8V to 2.4V

TTL signal.

• Otherwise, replace Main PBA.

• Check the USB signal level. • If USB signal level is defective, replace

Main PBA.

Defective image

Quality

• Check shading proﬁle. • Remake shading proﬁle in the tech mode.

• Check the gap between original and scan-

ner glass.

• The gap above 0.5mm can cause a

blurred image.

Abnormal noise • Check the Scanner Motor and any

mechanical disturbance.

• Check the right position of the Scanner

Motor, and check the any mechanical dis-

turbance in the CCD carriaging part.

• Check the motor driver in Driver PBA. • If any driver is defective, replace it.

- U55 or U56-1 = 0V to 24V swing signal

when operating.

Troubleshooting

5-12

5-5-2 FAX

5-5-2-1 FAX/TELEPHONE Precautions

PROBLEM ITEMS TO BE CHECKED. HO W TO SOLVE

TEL LINE CANNOT BE

ENGAGED

(NO DIAL TONE)

• When you press “ OHD” key:

a) Check line cord connection.

b) Check MAIN LIU harness, and CN1

(LIU PBA).

c )Check relay operation of LIU PBA :

Is the control signal of CN20-7(main) low?

a) insert it correctly into the connection

jack called “line”.

b) Replace defective parts.

c) Replace main PBA IF the control signal

of CN20-7(main) is high.

Replace LIU PBA if high but phone line

cannot be connected.

Cannot MF dial • Check CN20 (main PBA), MAIN-LIU

harness, and CN1 (LIU PBA)

• Replace defective parts.

MF dial is possible but

not DP dial.

• Check DP control signal of CN20-11 of

MAIN PBA and the circuit around R15. U6

and Q2 of Liu PBA.

• Replace LIU PBA.

Defective fax transmis-

sion

• Check CN20 (main PBA), MAIN LIU

harness, and CN1(LIU PBA).

• Is the external phone hooked off?

• Check ‘hook off’ : Refer to ‘TEL LINE

CANNOT BE ENGAGED’ above.

• Check the control signals of CN20-11.

• Check transmission path : Check output of

CN20-3.4 and T2-4(LIU PBA).

• Check reception path : Check output CN1-

1 (LIU PBA) and input of CN20-1

(main PBA).

• Replace defective parts.

• Replace LIU PBA if low.

• Refer to ‘TEL LINE CANNOT BE

ENGAGED’ above.

• Replace main PBA, if the signals of CN8-

11 (MAIN PBA) is low.

• Replace main PBA, if abnormal.

• Replace LIU PBA if CN1-1(LIU PBA) is not

conﬁrmed.

Replace main PBA if CN20-1(MAIN PBA)

is not conﬁrmed.

Defective automatic f ax

reception

• Is the ring checked?

Check ring pattern at CN1-9 (LIU PBA).

• Refer to ‘Defective Transmission. ’

• Replace LIU PBA if it cannot be checked.

• Refer to ‘Defective Transmission’.

Troubleshooting

5-13

5-5-3 Print Quality

Error Status Check Solution

Vertical blac k line and

band

1. Bad blade of Toner cartridge

2. LSU

1. Change Toner cartridge

2. Replace LSU

Vertical white line

1. LSU window contamination

2. Toner cartridge

1. Clean LSU window

2. If not LSU, change Toner cartridge.

No image

1. Seal tape is removed?

2. GND OPC is well grounded?

3. LSU running well?

4. Biss voltage is normal?

5. Lower toner?

6. Is there video data from Main PBA

1. Removing seal tipe

2. Measure the resistance between frame

ground and the ground spring attached

frame. Conﬁrm stable ground. Unless bad

ground, detach cabinet, check where is

bad point

3.Adjust LSU or replace it

4. Normal Dev bias = -350V

5. Shake toner cartridge and print.If a liitke

good, toner is empty

6. Test engine test pattern , replace Main

PBA

Light image

1. Check seal tape removing

2. LSU light power normal?

3. Enough toner?

4. High charger voltage?

5. Lower bias voltage

6. Contamination of high voltage contact.

7. Transfer volatge and roller.

1. Check and remove tape

2. LSU light power check is difﬁcult.

Compare with new one and check.

3. Check toner and developer counter

4~5. Measure all high voltage output.

6. Leakage toner cause bad contact and

increase contact resistance. Clean contami-

nated area.

Dark image

1. LSU light power normal?

2. Bias voltage output is high?

3. Video data is always supplied?

1. Check the rated level and replace.

2. Set to power rating.

3. Replace defected board.

Digital Printer

+ 28 hidden pages