Samsung SF-531P, SF-530 Troubleshooting
4-1
Samsung Electronics
4. Troubleshooting
4-1 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.
COMPONENT CLEANING CYCLE REPLACEMENT CYCLE SOLUTION
SCANNER
PRINTER
ADF Rubber
ADF Roller
White Roller
CIS
Cartridge
Pickup Roller
Feed Roller
Transfer Roller
Fuser
6 Months
1 Year
As Needed
As Needed
10,000 Pages
20,000 Pages
10,000 Pages
2,500 Pages
60,000 Pages
50,000 Pages
60,000 Pages
50,000 Pages
4-2 Tech Mode
In Tech mode, the technician can perform various tests to isolate the causes of a malfunction, and set the technical option features to customize the machine depending on the user’s operation environment.
To access TECH mode
: Press SETUP, #, 1, 9, 3, 4 in sequence, and the LCD displays ‘TECH’in the standby mode screen. While in TECH mode,
the machine still performs all normal operations.
To return to the normal user mode
: Turn the power off, then back on.
The technical options you have set in TECH mode are not changed unless you clear the machine’s memory in TECH mode.
To communicate via direct connection with another fax machine, press OHD/V.REQ followed by Start/Enter.
• Caution :
When you finish operating in Tech Mode, you must turn the power Off/On.
Troubleshooting
4-2
Samsung Electronics
Function Item Content Default
FAX NUMBER/NAME FAX NUMBER
FAX NAME
TIME/DATE SETUP DATE FORMAT EUROPE/USA EUROPE
TIME/DA TE
SYSTEM SETUP LANGUAGE ENG/GER/FRE/ITA/SPA/POR/DUT ENGLISH
SENDING MEMORY ON/OFF ON
SEND FROM CONFIRM ON/OFF/ERROR ERROR
FAX PAPER SIZE LETTER/A4/LEGAL A4
AUTO REDUCTION ON/OFF ON
DISCARD SIZE 0~30mm 20MM
RINGS TO ANSWER 1~7 2
ST AMPRCV .NAME ON/OFF OFF
RCV.START CODE 0~9 * 9 *
ECM MODE ON/OFF ON
CALLER ID ON/OFF OFF
JUNK FAX BARRIER ON/OFF OFF
DRPD MODE ON/OFF OFF
TECH MODE MODEM SPEED 2.4/4.8/7.2/9.6/12.0/14.4/28.8/33.6 26.4 KBPS
DIALING MODE TONE/PULSE TONE
SEND FAX LEVEL 0~15 -12 DBM
RCV. FAX LEVEL 40~50 -43DBM
FLASH TIME(RECALL TIME) 80/280/600 80 MS
P AUSE TIME 1~9 4 SEC
REDIAL INTERVAL 1~15 3 MIN
REDIAL COUNT 0~5 2
DP MAKE/BREAK 40/60~33/67 33/67
SILENCE TIME UNLIMITED/12SEC UNLIMITED
ERROR RATE 5%/10% 10%
IGNORE TONER EMPTY ON/OFF OFF
GROUP DIAL SETUP GROUP NO[1-20]
VOLUM SETUP ALARM VOLUM ON/OFF ON
KEY VOLUM ON/OFF ON
MEMORY CLEAR FAX NUMBER/NAME
DIAL/SCHEDULE
JOURNAL
DEFAULT SETUP
MAINTENANCE CLEANING DRUM
ADJUST SHADING
REMOTE TEST OFF/ON
NOTIFY TONER LOW OFF/ON
ROM TEST ROM OK! (VERSION)
CIS TEST
DRAM TEST DRAM OK
SWITCH TEST
DTMF TEST
TONER COUNT
PRINTING INFO OFF/ON
PROGRAM DOWNLOAD
SCAN COUNT CLEAR COUNT CLEARING .
4-2-1 System Data List in TECH MODE
: Only Tech Mode
Troubleshooting
4-3
Samsung Electronics
In TECH mode, press SETUP, then press or until
‘TECH MODE’ appears in the display. Press Start/Enter.
The following technical options are available.
Note : If necessary, print System Data List in TECH mode.
The list shows all current system data settings
including the TECH MODE options. To print the system data list, press Report/Help, then press
or until ‘SYSTEM DATA ’appears in the dis-
play, and press Start/Enter.
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.
DIALING MODE
• Select the dialing mode according to the user's line status.
• TONE: Electrical type of dial
• PULSE: Mechanical type of dial
SEND FAX LEVEL
• You can set the level of the transmission signal. Typically,
the Tx level should be under -12 dBm. The level within the
range of 1 to -15 dBm is acceptable.
• Caution: The Send Fax Level is set at the best condition
in the shipment 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 shipment from factory. Never change settings arbitrarily.
FLASH TIME
• Set the flash time to 80, 280, or 600 milliseconds.
PAUSE 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.
REDIAL INTERV AL
• If the remote machine is busy when the machine sends a
fax using automatic dialing, the machine automatically
redials the number. Select the time interval between automatic redial attempts. Enter the desired redial interval
using the number keypad: 1 - 15 minutes.
REDIAL COUNT
• You can set times that redial automatically attempts when
automatic transmission is done or when the remote
machine is busy or when the machine send a fax. If there
is no response after redialing by the times already set,
redial is no longer attempted. No redial is attempted if the
settings is 0. Enter the desired times from 1 through 5.
DP Make/Break
• 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 ship-
ment from factory. Never change settings arbitrarily.
SILENCE TIME
• In ANS/F AX mode, after a call is picked up by the answer ing 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 '2 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.
ERROR RATE
• 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%.
IGNORE TONER EMP
• You can set this function ON if desiring to drive the engine
continuously even though the life of toner is run out and it
becomes Toner Empty status.
4-2-2 Tech Mode Options
Troubleshooting
4-4
Samsung Electronics
In TECH mode, press SETUP, then press or until
‘MAINTENANCE’ appears in the display. Press Start/Enter.
The following technical options are available
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.
• Perform this feature several times until a clean printing
material appears.
ADJUST SHADING
• Use this feature to correct the white reference of the scanner if you experience bad copy images. When using this
feature, a white paper should be used to get clean copy
images.
• Use this adjustment feature to achieve best image (scan)
quality depending on the characteristics of the CIS (Contact
Image Sensor) parts.
1. Select [ADJUST SHADING] from the Service Mode.
2. Insert a clean white original [Letter Size] into the paper
loading part.
3. Original is scanned if pressing the Setting button.
4. If the original scan is completed, message is displayed
on the LCD window and CIS SHADING PROFILE is
output.
• If the output image is different from the normal screen, the
CIS is poor.
Caution:
1. Always perform the CIS TEST after downloading
Firmware. Otherwise, the system may not operate properly .
2. Always perform ADJUST SHADING after replacing the
CIS.
3. Always use a clean white paper in ADJUST SHADING
(Maximum paper width: Letter Size).
4. ADJUST SHADING may be performed even in the User
Mode but ADJUST SHADING profile is output only in the
TECH MODE.
REMOTE TEST
• The Remote Test feature can be enabled in order to allow
a remote location to call up and run a diagnostic test on
your machine. You may be instructed by a service representative to enable this feature.
NOTIFY TONER 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.
ROM TEST
• Use this feature to test the machine'S ROM. The result and
the software version appear in the LCD display.
CIS TEST
• This test checks the operation of the Contact Image Sensor
(CIS). Each time the number changes by one increment,
the average ADC value of CIS prints out.
DRAM TEST
• Use this feature to test the machine's DRAM. The result
appears in the LCD display.
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.
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.
TONER COUNT
•This feature shows the current state of the toner cartridge.
•TONER CNT: The total number of the dots used to print up
to current time.
•CRU STATE: The page number which the toner cartridge
can print.
• Caution : After replacing Main board to new one, you
should update the information to the new board.
4-2-3 Maintenance Options
Troubleshooting
4-5
Samsung Electronics
PRINTING INFO
• This feature allows the machine to automatically print various information, like toner count, transfer voltage, fusing
temperature and so on, at the bottom of each printed page.
• PAGE T ONER CNT: prints the number of dots used to print
the page.
• TOTAL TONER CNT: prints the total number of the dots
used to print up to current time.
• THV ON DUTY: prints ADC value of transfer voltage.
• THERMISTER: prints ADC value of fusing temperature.
• P: prints the page number.
PROGRAM DOWNLOAD
• Use this feature to download a new upgraded ROM file
from a PC that is connected to the machine with a parallel
cable (IEEE 1284).
SCAN COUNT CLEAR
• If performing this feature, the value of scanning original until
now is initialized (0). (Total scan count value on the system
data list becomes 0.)
Adjust Shading Sample Pattern
Troubleshooting
4-6
Samsung Electronics
In TECH mode, press Report/Help, then select the desired
list or report by using or key, then press Start/Enter.
The following options are available
HELP
• 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.
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.
PATTERN PRINT
• 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 .
SHADING PRIN
• With this print, you can check the scanning elements of the
CIS (Contact Image Sensor).
The Engine test mode is used to check the operation of the
components related to the printer engine.
The following test are available.
To access the Engine Test Mode:
1. Press Setup, #, 1, 9, 3, 1 in sequence.
2. When ‘ENGINE TEST?’ appears, press Start/Enter.
3. Scroll the options by pressing or repeatedly find
the one you want.
4. Press Start/Enter to start the test.
5. Press Stop to exit the Engine test mode.
• Caution :
When you finish operating in Engine Test Mode, you must turn
the power Off/On.
Engine Test Mode Options :
1. MAIN MOTOR TEST
2 PTL TEST
3. FAN TEST
4. FUSER TEST
( FUSER ON : 145˚C , FUSER OFF : 145˚C )
5. LSU MOTOR TEST
6. LD(LASER DIODE) TEST
7. HSYNC TEST (NG/OK)
8. LSU OPERATION TEST (NG/OK)
9.
SENSOR TEST ( FEED , EXIT , PAPER EMPTY , COVER OPEN)
10. SOLENOID TEST
11. MHV TEST( -1550 V )
12. DEV TEST ( - 430 V )
13. THV(+) TEST ( +1300 V )
14. THV(-) TEST
15. THV TRIGGER TEST
16. ALL FUNCTION TEST :
This function is for a manufacturing press . You can test
all function(1~15)
• When you push the “Start” button, the Main Motor runs.
• If you push the “Start” button again , the current test
stops, and the next test starts.
4-2-4 Printout Report
4-2-5 Engine Test Mode
S NSF 61005820003380140200001302090018010000
S/R FCF FIF DATA ASCII
S CSI 2020202020202020202020202O20202020202020
S CSI 202020202020202020202022O202020220202020
R TSI 2020202020202020202020202O20202020202020
S DIS 00000000 01110111 00010111 00100010
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 OCT-20-1999 06:35
Sending/Receiving
Name of signal
(Facsimile Control Field)
Facsimile Information Field
data described in hexdecmal code
FIF data described
in ASCII code
Troubleshooting
4-7
Samsung Electronics
< SAMPLE OF APROTOCOL DUMP LIST >
A number of reports can be printed from the fax machine
within the test mode. The protocol list all contain detailed
information which may be required when contacting technical support.
To printout the protocol list :
1. Get into the Tech mode by pressing Setup, #, 1, 9, 3, 4.
2. In Tech mode, press Report/Help.
3. Press or repeatedly until you find the Protocol
List. When you find ‘PROTOCOL LIST’, press ENTER.
SAMPLE OF APROTOCOLDUMP LIST
4-2-6 Maintenance List
Troubleshooting
4-8
Samsung Electronics
4-3 Diagnostics
This section describes methods and procedures to isolate the cause of a malfunction in the machine. This machine displays diagnostic information on the LCD. In addition, it can perform a series of tests that allow the machine to observe individual machine
functions.
4-3-1 Error Messages
DOCUMENT JAM
DOOR OPEN
LINE ERROR
LOAD DOCUMENT
LSU ERROR
The loaded document has jammed in the feeder. Clear the document jam.
The top cover is not securely latched. Press down on the cover until it clicks in
place.
Your unit cannot connect with the remote
machine, or has lost contact because of a problem on the phone line.
Try again. If failure persists, wait an hour
or so for the line to clear, then try again.
Or, turn the ECM mode on.
You have attempted to set up a sending operation with no document loaded.
Load a document and try again.
There occurs a problem in the LSU
(Laser Scanning Unit).
Unplug the power code and plug it back
in. If the problem still persists, please call
for service.
FUSER ERROR
There occurs a problem in the fuser unit.
Unplug the power code and plug it back
in. If the problem still persists, please call
for service.
MEMORY FULL
The memory is full. Either delete unnecessary documents, or
retransmit after more memory becomes
available, or split the transmission into
more than one operation.
JAM/NO CARTRIDGE
Recording paper has jammed inside the unit, or
the toner cartridge is not installed.
Clear the jam, or install the cartridge
NO ANSWER
The remote machine has not answered after all
the redial attempts.
Try again. Make sure the remote machine
is operational.
NO. NOTASSIGNED
The one-touch or speed dial location you tried
to use has no number assigned to it.
Dial the number manually with the keypad, or assign a number.
Error Message Description Solution
Troubleshooting
4-9
Samsung Electronics
NO PAPER
OVER HEAT
POLLING ERROR
POWER FAILURE
RECEIVE ERROR
The recording paper has run out. Load the recording paper.
The printer part in your unit has overheated. Please wait until it cools down.
If you cannot solve the problem, please
call for service.
The remote fax machine you want to poll is not
ready to respond to your poll.
Or When setting up to poll another fax machine,
you have used an incorrect poll code.
The remote operator should know in
advance that you are polling and have
their fax unit loaded with the original document. Enter the correct poll code.
A power failure has occurred. If documents have been stored in the
memory, a ‘Power Failure Report’ will be
printed automatically when the power is
restored.
A fax has not been received successfully. A problem with the facsmile communica-
tions has occurred. Ask the sender to try
again.
PAPER JAM 0
Recording paper has jammed in the paper feeding area.
Clear the jam.
RETRY REDIAL ?
The machine is waiting for a specified time interval to redial a previously busy station.
You can press Start to immediately redial, or Stop to cancel the redial operation.
PAPER JAM 2
Jammed paper still remains inside the unit.
Clear the jam, or install the cartridge
SEND ERROR
Your fax has not gone through successfully. A problem with the facsmile communica-
tions has occurred. Try again.
TONER EMPTY
TONER LOW
WARMING UP
The toner cartridge has run out. The machine
stops.
The toner is almost empty.
The printer is warming up and is off-line.
Replace with a new toner cartridge.
Take out the toner cartridge and gently
shake it. Using this way, you can temporarily re-establish the print quality.
Wait until the printer is on-line.
Error Message Description Solution
Troubleshooting
4-10
Samsung Electronics
When you replace the main board to new one, the information on the toner state is cleared. Therefore, you should
update the information to the new board by entering the
exact value of total toner count and specifying the toner cartridge installed currently is shipped with the machine or new.
If not, ‘TONER LOW/EMPTY’ message may not appear
when the toner is run out.
1. In Tech mode, print ‘SYSTEM DATA LIST’. The list
includes the total toner count and CRU state information.
• TOTAL TONER COUNT: The total number of the dots
used to print up to current time.
• CRU STATE: The page number which the toner cartridge can print. (The yield of a new toner cartridge is
approximately 2,500 pages and that of the cartridge
supplied with the machine is approximately 1.000
pages.)
2. Replace Main board.
3. In Tech mode,
3-1) Press Setup, and find ‘MAINTENANCE’ by pressing
repeatedly or , then press Start/Enter.
3-2) When ‘TONER COUNT’ is displayed in LCD, press
Start/Enter, and enter the value of the total toner
count in the system data list.
3-3) When you are prompted to enter CRU STATE, press
Start/Enter.
3-4) When you see ‘[1.1000 2.2300]’ in LCD, select the
value of the CRU state in the system data list.
4. In T ech mode, print ‘SYSTEM DAT ALIST’and make sure
that the toner information is updated.
4-4 Print Quality
4-5 Note for replacing Main board
No Roller Abnormal image period Kind of abnormal image
1 OPC Drum 75.4mm •White spot on black image
•Black spot
2 Charge Roller 37.7mm Black spot
3 Supply Roller 26.8mm Horizontal density band
4 Develope Roller 31.6mm Horizontal density band
5 Transfer Roller 47.1mm Black side contamination/transfer fault
6 Heat Roller 50.1mm Black spot, White spot
7 Pressure Roller 50.2mm Black side contamination
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