Samsung SF 3000, SF3000T Troubleshootin

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

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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.

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SILENCE DETECTION TIME

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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.

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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

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Nozzle Test

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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

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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

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.

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4-1-4. Report Printout

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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.

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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.