Page 1
4. Service Mode & Troubleshooting
4-1. Service Mode
4-1-1. How to Enter Service Mode
In service mode, the technician can check the machine and perform various tests to isolate the cause of a malfunction.
To enter Service mode , press MENU, #, 1, 9, 3, 4 in sequence , and LCD briefly displays “ “ between DATE
and TIME to indicate that the machine has entered Service Mode. While in Service 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 momentarily unplugging the power cord.
Options changed while in Service mode do not remain change unless you clear the machine memory.
To communicate via direct connection with another fax machine, press OHD/V.REQ followed by
START/COPY.
4-1-2. Changing Options
Selectable Options
User Mode Options
DIAL TYPE
PAPER SIZE
AUTO REDUCTION
▲
“ON” VERTICAL REDUCTION
“OFF” DISCARD SIZE
INK SAVE
MESSAGE CONFIRMATION REPORT
AUTO TX/RX REPORT
REMOTE RCV MF CODE
ECM MODE
AUTO ANSWER ON RING COUNT
RING VOLUME
TAD Options
CALL TRANSFER
CALL MONITORING
REMOTE PASSCODE
BATTERY ALARM
TOLL SAVER
▲
Selections
[TONE/PULSE]
[LETTER/A4/LEGAL]
[ON/OFF]
[YES/NO]
[00-30]
[OFF/MEDIUM/MAX]
[ON/OFF/ERROR]
[ON/OFF]
[0-9]
[ON/OFF]
[1-7]
[OFF/LOW/MEDIUM/HIGH]
Item
[ON/OFF]
[ON/OFF]
[000-999]
[ON/OFF]
[ON/OFF]
Default Status
TONE
A4
ON
NO
15mm
MEDIUM
ON
OFF
*9*
OFF
2
MEDIUM
Default Status
OFF
OFF
#139#
ON
OFF
Samsung Electronics
4-1
Page 2
Service Mode
Service Mode Options
MODEM SPEED
FAX TX LEVEL
FAX RX LEVEL
RECALL TIME
PAUSE TIME
SILENCE RX LEVEL
SILENCE D. TIME
SILENCE DROP OUT TIME
Service Mode Options
Item
[2.4/4.8/7.2/9.6/12.0/14.4]
[01-15] (-dBm)
[40-50] (-dBm)
[100/280/600] (ms)
[1-9] (sec)
[20-48] (-dBm)
[UNLIMITED, 12 sec]
[00-50] (100 ms)
Default Status
14.4 Kbps
-12 dBm
-48 dBm
100 ms
3~4 sec
-36 dBm
UNLIMITED
2000 ms
MODEM SPEED
Select a baud rate of 14.4 K, 12.0 K, 9600, 7200, 4800,
or 2400 bps. The lower the baud rate, the larger the
acceptable error rate. T30 protocol has a fixed speed
of 300 bps in protocol mode. When the TX speed is
set to 9600 or 7200 bps, the RX speed will be either
V.29 or V.27 ter. When the TX speed is set to 4800 or
2400 bps, the RX speed will be V.27 ter.
FAX TX LEVEL
The FCC requires that transmission level be less
than -9 dBm. From -9 dBm to -15 dBm is acceptable.
You can set the transmission level to between 0 and
-15 dBm in 1dBm steps using the control panel
keypad.
Accuracy is +0 /-3 dBm.
F
AX RX LEVEL
RECALL
Choose recall time from 100, 280, 600 milliseconds.
TIME
PAUSE TIME
Choose dial pause time from 1 through 9 seconds.
SILENCE LEVEL
In TAD mode, after a call has been picked up by the
answering machine, any signal level below the
silence level will be considered silent. You can set
the silence level between -20 and -48 dBm.
Reception level may be too low due to cable losses.
If set to -43 dBm, reception sensitivity will be
between 0 and -43 dBm. If set to -48 dBm, reception
sensitivity will be between 0 and -43 dBm.
Samsung Electronics4-2
Page 3
SILENCE DETECTION TIME
¡¡¡
¡ª¡ª¡ª
Service Mode
In TAD mode, after a call picked up by the
answering machine, the fax 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 fax mashine begins receiving. Silence
detection time is selectable between limited (about
12 seconds) or unlimited time.
When ‘12 second’ 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 if silence is detected. After the
answering operation is concluded, the machine
switches to receiving mode.
SILENCE DROP OUT TIME
If any signal (tone, voice, fax tone, etc.) is detected
during the silence drop-out time, prior accumulated
silence time will be ignored, and silence detection
time is restared. Choose silence drop out time from
100 through 5000 milliseconds.
Changing Options
Press MENU and 3, the display shows ‘3] SYSTEM
DATA’.
Press START/COPY, and the display asks you to
choose FAX or TAD (SF3000T only) or TECH option.
You should select FAX or TAD or TECH by using
or , then press SRART/COPY.
Press or repeatedly to select the desired option.
When the desired option appears, press
START/COPY. When the display shows the values,
you can chose using or for that option. After
choosing one, press START/COPY.
Samsung Electronics 4-3
Page 4
Service Mode
4-1-3. Test Mode
Test mode is used to test machine funtions. Press MENU and 0 on the keypad, Then press START/COPY.
Press or repeatedly to select the desired test item. When the desired test mode appears, press START.
Run Self Test
This test allows you to check if the printer
mechanism is functioning properly. A printer test
pattern is printed out. See below.
Examine the test pattern and look for a break in the
diagonal line.
If the diagonal lines are not broken, and the black
bars are clear, the printer mechanism is functioning
properly. A broken line shows clogged nozzles. If so,
run the nozzle test.
1. Press Menu.
2. Press or repeatedly until ‘0. TEST MODE’ is
displayed, then press Start/Copy.
3. Press or repeatedly until ‘SELF TEST ? ’ is
displayed
4. Press Start/Copy. The test pattern is printed.
Check Ink Level
This machine allows you to check the amount of ink
remaning. The machine displays amount as a series
of starts in the LCD. The more starts, the more ink
remains.
8 / 8
Examine the test pattern.
SAMSUNG Plain Paper InkJet Facsimile
Figure 4-1 Self Test Pattern
Samsung Electronics4-4
Page 5
Nozzle Test
¡
¡
¡
Service Mode
The print cartridge nozzle test helps you pinpoint
any clogged nozzles. The nozzle test also cleans the
print cartridge by cleaning (purging) the nozzles. A
test line prints so you can see if the cleaning
(purging) process was successful.
Use the nozzle test :
- When you suspect the nozzles are clogged
- When characters are not printing completely
1. Press Menu.
2. Press or repeatedly until ‘0. TEST MODE’ is
displayed, then press Start/Copy.
3. Press or repeatedly until ‘NOZZLE
CLEAN?’ is displayed.
4. Press Start/Copy. The test pattern is printed.
Examine the test pattern.
SAMSUNG Plain Paper InkJet Facsimile
2. Press Start/Copy.
The cartridge carrier moves to the install position.
3. Unplug the power cord from the electrical outlet
on the rear of the machine.
4. Open the control panel and cartridge
compartment cover.
5. While pushing the cartridge holder away from
you, pull the print cartridge handle, until it
clicks. Remove the print cartridge.
Figure 4-2 Nozzle Test Pattern
HOW TO WIPE THE NOZZLES AND
CONT
Wiping the Print Nozzles and Contacts
When the print is not clear or dots are missing, the
problem may be caused by dried ink on the :
- Print cartridge nozzles
- Print cartridge contacts
- Print cartridge carrier contacts and deflector
1. Press Menu, then press or until
Samsung Electronics 4-5
ACTS
‘1. CHANGE CART.’ is displayed.
6. Use a clean cloth, dampened with water only, to
gently clean the entire copper-colored area,
including the nozzles and contacts.
To dissolve any dried ink, hold the damp cloth
against the nozzles for about three seconds.
Gently blot and wipe dry.
nozzles
contact area
Page 6
Service Mode
7. Use a CLEAN, DRY CLOTH to clean the print
cartridge carrier contacts inside the printer.
cartridge
carrier
8. Clean the carrier deflector inside the printer.
carrier
defletor
Modem Test
The modem will send various transmit signals on
the telephone line.
You can check the following:
- FSK test
- tones: 464 Hz, 1100 Hz, 1650 Hz, 1700 Hz, 1850 Hz,
2100 Hz
- G3 training: 14.4 K, 12 K, 9600, 7200, 4800, 2400 bps
ROM Test
Tests machine ROM (Read Only Memory). The
result and the software version appear in the LCD
in the following format:
ROM: V10/AB OK !
Aging Test
9. Plug the power cord in, and install the print
cartridge. See page 2.7 in O/P manual.
Note: You must choose ‘Used’ when the display
reads ‘:NEW :USED’ if using the saved cartridge.
Scanner Test
You can check the scanning elements of the CIS
(Contact Image Sensor) and print a shading
waveform graphically with dots.
This test is only for factory.
DTMF Test
This test is only for factory.
Smear Test
This test is only for factory.
Samsung Electronics4-6
Page 7
4-1-4. Report Printout
¡
¡
The fax machine can print reports containing useful information - Standby job, Option Settings, etc.
The following reports are available.
Service Mode
Selectable Reports
TELEPHONE NUMBER LIST
This list shows all of the numbers currently stored
in the fax machine’s memory as One-Touch Dial
numbers, Speed Dial numbers, and Group Dial
numbers.
SYSTEM DATA LIST
This list shows the status of the user-selectable
options. After you change any setting, print this list
to confirm your changes.
TRANSMISSION OR RECEPTION JOURNAL
This report shows information concerning
transmission or reception activities.
It can be printed on command, on if the machine is
set to do so (see page 7.9), it will automatically print
after every 50 transmissions and/or receptions.
MULTI-COMMUNICATION REPORT
This report is printed automatically after sending
your document to more than one location.
CALL BACK MESSAGE
This report is printed automatically when you do
not respond to a remote operator’s Voice Request.
POWER FAILURE REPORT
This report is printed automatically when power is
restored after a power failure, and report shows
data (if any) erased by the power failure.
4-3-2 Ink Level Check
This machine allows you to check the amount of ink
remaining as a series of blocks in the LCD. The
more blocks, the more ink remains.
How To Print Reports
MEMORY STATUS LIST
This list shows the document currently stored for
delayed transmission. The list shows the operation
number, starting time, type of operation, etc.
MESSAGE CONFIRMATION REPORT
This report shows the fax number, the number of
pages, elapsed time of the operation, the
communication mode, and the communication
results.
VOICE ST
This report shows the status of the recorded
massage.
Samsung Electronics 4-7
ATUS LIST (SF3000T only)
1. Press the MENU button.
2. Press or repeatedly until
‘4. LIST PRINT’ is displayed.
3. Press Start/Copy.
4. Choose the report you want to print by
using or .
5. Press Start/Copy when the desired list is
displayed. The selected list will be printed out.
Page 8
4-2. Troubleshooting
Y
Y
Y
YY
YY
Y
Y
N
N
N
N
Y
N N
NN
N
N
4-2-1. Overall Troubleshooting Flow
START
Load document
in Feeder
Copy OK?
Plug the power cord
Document fed? Press START Key
Call machine from
another phone
Power Supply
OK?
See 7-2
Auto Answer
OK ?
System
initialized?
See 7-3
CIS on?
See 7-5See 7-4
RX OK?
See 7-6
RX OK ?
See 7-9
4-8 Samsung Electronics
Lift Handset off
hook
See 7-7 See 7-8
Dial tone OK ?
See 7-10
TX OK ?
See 7-11
END
Page 9
Troubleshooting
Y
N
Y
N
Y
N
Y
N
Y
N
Y
N
4-2-2. Check Power Supply
START
Check
Power Cord
Continuity
Replace Cord
Power cord
connected?
Fuse OK?
Replace Fuse
Check AC
socketvoltage
END
Q1 OK ?
Replace Q1
Remove short
220 ~ 240 VAC?
Notify customerConnect as required
R8 Short ?
END
Samsung Electronics 4-9
Page 10
No +5 V
N
Y
N
Y
Y
N
Y
N
N
Y
N
Y
Y
N
Y
N
Troubleshooting
START
DC 6 V
Check PCB Pattern
Output Shorted ?
Remove short
Check U2 ?
Replace U2
D2 Open or
Shorted ?
Replace D4
Check CON1
Check U2 Input
voltage
END
No -12 V
START
-15 VDC
Check PCB Pattern
output shorted ?
Remove short
U1 Output ?
Replace U4
D3 Open or
Shorted ?
Replace D3
Check CON1
Check U3 Input
voltage
END
4-10 Samsung Electronics
Page 11
Troubleshooting
N
Y
N
Y
Y
N
Y
N
No +24 V
START
DC 24V
Check PCB Pattern
output shorted ?
Remove short
Check ED3 ?
Replace ED3
D4 Open or
Shorted ?
Replace D4
Check CON1
Check L1 Input
voltage
END
Samsung Electronics 4-11
Page 12
4-2-3. System Not Initialized
N
Y
Y
N
Y
N
NG
OK
NG
OK
NG
Y
Y
N
Y
N
START
Troubleshooting
Check Vcc ≥ 4.75V
P9-1 (+5)
P9-2 (GND5)
See Section 7-2-2
Check U33Pin 3
= “High”
Step motor
driving
Check
30 MHz
Clock U1-151
Replace U33
Voltage detector IC
Check
P4 Harness or
OPE PBA
Replace U1
Jupiter-2
Check
30 MHz
Clock U1-131
Replace P4 Harness
or OPE PBA
Replace X1 XTAL
Replace U28 ROM
OK ?
Replace U1
Jupiter-2 IC
OK ?
A
END
END
4-12 Samsung Electronics
Page 13
Troubleshooting
Y
N
A
Replace U30 RAM
OK ?
Replace MAIN PBA
END
END
Samsung Electronics 4-13
Page 14
4-2-4. Document Not Loading
Y
N
Y
N
N
OK
NG
OK
NG
Troubleshooting
START
P7-1, 2, 3, 4
Motor Strobe
U2-105,106,
107,108 Motor
Strobe
Insert Document
Replace Motor
END
U301-2 “H” ?
Replace D-DET
SENSOR
Check 24V
P7-5, 6 ?
See Section 7-2
Replace U2
4-14 Samsung Electronics
Page 15
Troubleshooting
Y
N
N
Y
Y
N
Y
N
4-2-5. CIS LED Not Lit
START
CIS LED lights
Load document in
feeder
Works properly ?
Document fed ?
Check +5, -12V
See 7-4
from P5
Normal?
Press the copy
button
Replace the
power supply
Replace CIS
Check LED +5 in
P5
+5V ?
Replace the main
b’d
END
Samsung Electronics 4-15
Page 16
4-2-6. Malfunction on Copy
Y
N
N
Y
Y
N
Y
N
Y
N
Y
N
Y
N
Y
N
N
Y
Troubleshooting
START
CIS LED on ?
See chart 7-5
Load document in
feeder
Document fed ?
Press the
COPY button
See chart 7-4
5V
Copy works
properly ?
Check
CIS clock (P5-8)
the main board
A
0V
Normal ?
Replace CIS
Check cartridge
Good ?
Replace the
main b’d
END
Good ?
Replace cartridge
Check U11, U12
in the main
boaard
Replace the
main b’d
+5V and
+24v ?
Check harness
Good ?
Measure voltage
on the main
board
Replace harness
Copy produced ?
A
Replace the
power supply
4-16 Samsung Electronics
Page 17
Troubleshooting
N
N
Y
N
Y
Y
N
N
Y
A
Good copy
quality ?
Run the selt test
Run the CIS test
Normal ?
Replace the CIS
Good printer
quality ?
Good copy
quality ?
Replace the
printer b’d
Replace
the main b’d
END
Samsung Electronics 4-17
Page 18
4-2-7. Malfunction in Auto Answer
Y
N
Y
N
START
Troubleshooting
Call the machine
from another phone
Auto answer?
Check Signal P1-6
+5V
0V
Replace LIU board
?
Replace main
board
END
4-18 Samsung Electronics
Page 19
Troubleshooting
Y
N
Y
N
N
Y
4-2-8. Malfunction in Manual Receiving
START
Lift the handset from
fax then press START
Machine goes
on-line ?
Check P3-12
OK ?
Check LIU board
OK ?
Replace main board Replace main board
Replace LIU
board
END
Samsung Electronics 4-19
Page 20
4-2-9. Malfunction in Automatic Receiving
Y
N
N
Y
Y
N
N
Y
Troubleshooting
START
Check the
telephone line
Call the machine
from another phone
Normal ?
Notify to customer
Auto answer ?
See chart 7-7
Check Tx/Rx signal
from P1-7 to P1-9 in
the main b’d
Normal ?
Replace the
main b’d
Receive data ?
END
Replace the
LIU b’d
END
4-20 Samsung Electronics
Page 21
Troubleshooting
Y
Y
N
HLH
L
L
H
N
Y
NG
OK
OK
NG
NG
OK
4-2-10. No Dial Tone
START
Press OHD/V.REQ.
Dial tone ?
Lift Handset
Dial tone ?
Test Telephone
Cord
Use a phone to check
service at wall jack
Service OK ?
Main PCB U2-45
CML1
Replace Telephone
Cord
Request Telephone
Service
Check/ Replace:
Handset cord
Handset, Hook
Switch, LIU U1,
LIU Board
Return machine to
Custmer
Main PCB U2-
93 SPK_CTRL
Check logic
U26-9, 10, 11
Check/ Replace:
Speaker
Main Board U16
Main board
Replace LIU PBA
Good ?
Replace main PBA
Samsung Electronics 4-21
Page 22
4-2-11. Transmit Failure
Y
N
Y
N
START
Troubleshooting
Load document
Feed OK ?
Chart 7-4 Document
Not Loading
Dial Receiving
Machine
Transmit Begin ?
Replace: LIU board,
Main Board
Return Machine
to Customer
4-22 Samsung Electronics
Page 23
Troubleshooting
4-2-12. RTC FAILURE
Samsung Electronics 4-23
Y
N
Y
N
STAR T
CHECK TIME ON
LCD=NG
CHECK BT1 ON
MAIN BOARD
3V?
REPLACE BT1
3V?
N
REPLACE
MAIN BOARD
CHECK U1-202 ON
MAIN BOARD
32.768KHZ?
REPLACE X2 X-TAL
Y
Loading...