Samsung SF 330/05 Troubleshootin

4-1

Samsung Electronics

4. Troubleshooting

4.1 Tech Mode

4.1.1 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 ‘ ’, 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.

4.1.2 Selectable Options

A default values are different by nations. Please check the default values for coming under nations.

*

FUNCTION ITEM CONTENT DEFAULT

SET SYSTEM ID Fax Number

Fax Name

SET DATE & TIME Date Format EUROPE/USA

Date&Time
SETUP SYSTEM Language English/German/French/Italian/
(In User Mode) Spanish/Portuguese/Dutch

Sending Confirm ON/OFF/Error Error

Paper Size A4/Letter/Legal A4

Auto Reduction ON/OFF ON

Discard Size [00-30]mm 15 mm

Ring To Answer [2-7] 2

Rcv. Start Code [0-9] *9*

ECM Mode ON/OFF ON

Send From Memory ON/OFF ON

Caller ID ON, ON/w Junk Fax, OFF ON

Set Junk Fax No. Add , Delete

Auto Journal ON/OFF ON

DRPD Mode

Remote Test ON/OFF OFF

Silent Mode Manual/Daily Manual

Resolution Standard/Fine/Superfine Standard

Contrast Normal/Lighten/Photo/Darken Normal

Image TCR ON/OFF OFF
SETUP SYSTEM Modem Speed 14400/12000/9600/7200/ 14400bps
(In Tech Mode) 4800/2400 bps

Fax TX Level [00-15] dBm -12 dBm

Fax RX Level [43-48] dBm -48 dBm

CNG Count [1-4] 2

T1 Time [030-150] 055

Fax Error Rate 5/10/20 % 10%

Flash Time 100/280/600 ms 100 ms

Pause Time [1-9] sec 4 sec

Make/Break 33/66 , 40/60 33/66

Ring ON Time [00-99] * 10 ms 15 * 10 ms

Ring OFF Time [00-99] * 10 ms 80 * 10 ms

DTMF High Level [00-99] dBm -08 dBm

: Only Tech Mode

Troubleshooting

4-2

Samsung Electronics

FUNCTION ITEM CONTENT DEFAULT

DTMF Low Level [00-99] dBm -11 dBm
USB Mode FASK/SLOW
PWM Value Setup [000-208] 105
Dial Mode Tone/Pulse Different by nations

ADVANCED FAX Set Broadcasting

Set Delayed Fax
Set Polling Send
Cancel Schedule

Set Fax Forward
SETUP TAM Save Charge ON/OFF OFF
(ONly SF-335T) Call Monitor ON/OFF ON

ICM Record Time 0/30/60/90 sec 60

Remort Password [000-999] #139#

Silence Action Disconnect/Receive Fax/Record Silence Disconnect

Howler Action Disconnect/Record Howler Disconnect

Message Forward ON/OFF OFF

Howler Time [000-150] ms 090

Silence Time [000-200] ms 105

Parallel Level [100-200] 130
SETUP SOUND Alarm Sound ON/OFF

Key Sound ON/OFF
MEMORY CLEAR All Memory Clear
MAINTENANCE Clean Head

Align Head

View Ink Level

Adjust Scanner

Self Test

ASF Test

Modem Test

DTMF Test

Program Download
REPORT/HELP Help List

Send Journal

Received Journal

Phonebook

Sending Confirm

Schedule Inform

System Data

Caller ID

Junk Fax

TAM Status

Print Fax

Shading Profile

Protocol Dump

NVRAM Dump

Memory Dump

Task History

4.1.2 Selectable Options (cont.)

: Only Tech Mode

Troubleshooting

4-3

Samsung Electronics

♦ 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 14400 bps as
default setting.
(14400 → 12000 → 9600 → 7200 → 4800 → 2400 bps).

♦ Fax TX Level

You can set the level of the transmission signal. T ypically,
the Tx level should be under -12 dBm. The level within the
range of 1 to -15 dBm is acceptable.

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

♦ Fax RX 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.

♦ CNG Count

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

♦ T1 Time

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.

♦ FAX 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%., 20%

♦ Flash Time

When the recall button on the OPE is pressed, it displays
time to operate a recall. It is possible to select 100,280 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 condi-

tion in the shipment from factory. Never
change settings arbitrarily.

♦ Make/Break

• Select the dial pulse make and break time: 33/66 or
40/60

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

the shipment from factory. Never change set­tings arbitrarily.

♦ Ring On Time

It is used to acknowledge the effective ring. When a
phone call coming, a ring is ringing if an input range of the
ring is bigger than ring-on-time. The input range is 00­990ms.

♦ Ring Off Time

Once you are in the Ring On Time Mode, if the ring signal
is not equal to or greater than the ring off time, you should,
increase the ring count.
If the ring signal is not set equal to or less than the ring off
time, do not increase the ring count. Instead, check the
Ring On & Off time again. The input range is between
00~990msec.

♦ DTMF High Level

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

• Caution : The DTMF High Level is set at the best condi-

tion in the shipment from factory. Never
change settings arbitrarily . (DTMF : Dual Tone
Multi-Frequency)

♦ DTMF Low Level

• Select low frequency level when dialing in theMF mode.
The input range is between 00~15dBm.

• Caution : The DTMF Low Level is set at the best condi-

tion in the shipment from factory. Never
change settings arbitrarily . (DTMF : Dual Tone
Multi-Frequency)

♦ USB Mode

Selectable USB packet size, Fast and Slow.(SF-331P
only)

♦ PWM Value Setup

This function is used in factory for production not for service
person. If a service person tries to use it, an image can be
abnormal during printing; therefore, do not touch it.

4.1.2.1 Setup System (In Tech Mode)

Troubleshooting

4-4

Samsung Electronics

♦ Save Charge

When the user accesses the product from the outside via
phone, if the New ICM messages are exist, the product
answers after ringing as number of Rings to Answer the
user set. If there are no New ICM messages, the product
will answer after ringing as number of Rings to Answer
plus two times more. The user can check whether there
is New ICM message or not using this function without
physical phone line connection and this makes to save
money for the user. On or Off is selectable.

• ICM((In Coming Message)

♦ Call Monitor

When the caller leave a message on the product, the user
can hear the caller's message via speaker of the product
using this function. On or Off is selectable.

♦ ICM Record Time

The user can specify the maximum recording time for
ICM message. If this maximum recording time is elapsed,
the product will disconnect the line. 0, 30, 60 or 90sec­onds are selectable.

♦ Remote Password

When the user accesses the product from the outside via
phone, the user should specify this remote password to
keep user's personal privacy . The user can change 3 dig­its of the password except two # and the default value is
#139#.

♦ Silence Action

When the product recording ICM message, if the silence
is continued for 10seconds, the user can select the oper­ation of the product about this silence. Disconnect,
Recording silence or Receiving fax are selectable.

♦ Howler Action

The howler means serious noise such like siren.
Technically we decide as a howler signal if the input sig­nal is maintained by active state for 9 seconds without any
transition between active and inactive states. The user
can select the operation of the product at howler tone is
detected. Disconnect or Recording howler are selectable.

♦ Message Forward

When you're out of the office or home and you want to be
notified whenever there is new message left on your
machine, you need to use the Message Forwarding fea­ture supplied with
your machine.In TAM Mode,you can set your machine to
transfer incoming calls to another number.In order to use
the Message Forwarding feature.

♦ Howler Time

While the setting value is over, it acknowledges the
Howler tone as Howler tone. The possible setting rage is
[000~150] (Unit : 100 ms).

♦ Silence Time

While the setting value is over, it acknowledges the
Silence as Silence. The possible setting range is
[000~200] (Unit : 100 ms).

♦ Silence Level

When a signal lower than setting value is coming, it
acknowledges it as Silence.

♦ Parallel Level

During OGM is playing or ICM is being recorded, when a
signal level difference is bigger than setting value it
acknowledger parallel is lift.

4.1.2.2 Setup TAM (Only SF-335T)

Troubleshooting

4-5

Samsung Electronics

♦ ALL MEMORY CLEAR

This is a function to return a system to the initial state.
There are two ways for performing MEMORY CLEAR.

♦ Using TECH MODE

In the TECH MODE, perform a MEMORY CLEAR.
It is a function to help to select a firmware for the right
nation after replacing a main board.

• Operation method •

1. Enter to the TECH MODE by pressing
MENU, #, 1, 9, 3, 4 in order.

2. Press "MENU" button until "MEMORY
CLEAR" is displayed at LCD window.

3. When push a "ENTER" button, a message
that requests to input a country code will be
displayed.

4. Input a country code you wish then, press
"ENTER" button.

5. Country name will be displayed at LCD.

6. If it is correct, press "ENTER" button. If not,
press "CANCEL" button to return to the pre­vious step.

7. MEMORY CLEAR will be performed. (Please
refer to the country code in the below table)

Caution : By each country, the default values

are little different. After replace the
main board, perform this function for
setting the firmware fitted for each
country to make a machine to work
properly .

♦ Using BUTTON

When the machine is abnormally operated, this func­tion is performed for resetting the system to initial value.
All the setting values are returned to the default values,
and inputted information by user will be erased but
country code.

• Operation method •

1. Turn off the power.

2. Turn on the power while press "STOP" but­ton.

3. Press "STOP" button until the "MEMORY
CLEAR" is displayed at LCD panel.

Note : This method doesn't have a function to

input the country code.

4.1.2.3

MEMORY CLEAR

Troubleshooting

4-6

Samsung Electronics

EUROPE ASIA AMERICA

Country Code Country Code Country Code

England 01 Korea 31 USA 61
Germany 02 Australia 32 Canada 62
Switzerland 03 NewZealand 33 Brazil 63
Austria 04 SouthAfrica 34 Chile 64
Italy 05 Chinese 35 Mexico 65
France 06 HongKong 36 Panama 66
Spain 07 Singapole 37 Argentina 67
Portugal 08 India 38 Peru 68
Netherlands 09 Indonesia 39 Colombia 69
Belgium 10 Malaysia 40 Uruguay 70
Sweden 1 1 VietNam 41 Venezuela 71
Norway 12 Philippines 42 Reserve_USA 72
Finland 13 Bangladesh 43 Reserve_USA2 73
Denmark 14 Israel 44 Reserve_USA3 74
Hungary 15 Kuwait 45 Reserve_USA4 75
Poland 16 Iran 46
Czecho 17 Iraq 47
Yugo 18 UAE 48
Romania 19 Syria 49
Bulgaria 20 Lebanon 50
Turkey 21 Jordan 51
Greece 22 SaudiArabia 52
Russia 23 Egypt 53
ReserveEU1 24 Tunisia 54
Reserve_EU2 25 Morocco 55
Reserve_EU3 26 Thailand 56
Reserve_EU4 27 Taiwan 57
Reserve_EU5 28 Reserve_Asia3 58
Reserve_EU6 29 Reserve_Asia4 59
Eu_Std 30 Asia_Std 60

< Rhine Country Code >

Troubleshooting

4-7

Samsung Electronics

♦ Clean Head

When white lines are appeared, when image is printed
poorly in part, sweep the nozzle of the ink cartridge and
contacting surface of the cartridge, then clean the car­tridge.
Until it gets better, do it several times.
On the inkjet print system, the print quality can be degrad­ed by several causes , and the main root cause among
the causes will be from the head.If the print quality is not
good, the user should do this process to get a good print
quality . This operation can be initiated from the printer dri ­ver menu or Maintenance menu from the control panel of
the product. When the operation is initiated , the diagonal
patterns and purge patterns are printed out. The first diag­onal pattern is to indicate the current nozzle status before
cleaning. The 3 purge patterns are operations for clean­ing cartridge.This operation includes purging , wiping and
spitting. The second diagonal pattern is to indicate the
current nozzle status after cleaning.

♦ Align Head

Using this feature to get fine print quality when a vertical
line is printed not in straight or when ink cartridge is just
replaced.

♦ View Ink Level

To check the amount of the mounted ink cartridge.
The product has no ink level monitor sensor. Therefore
the firmware counts ink dot whenever the ink is fired , and
we call it as ink level monitor gauge. This is not automat­ic method , so the user should do proper operation when­ever the user installs the new ink head. The firmware will
record the ink dot count be fired into the backup informa­tion memory whenever the printing job is finished and the
machine is in idle state. The user can monitor the current
ink level on the Maintenance menu. The level will be dis­played as like x/8 and this value indicates the remained
ink level.
If the current ink level reaches to 1/8 , the firmware will dis­play 'Install new cartridge'. message to indicate current
remained ink can be exhausted soon .
This message will be displayed continuously unless the
ink is replaced and the user selects the New Ink. Under
Ink Low state , the received fax message will not be print­ed out unless the user replaces the ink and selects the
New Ink. But , PC printing and copy job will be done under
this Ink low condition.

4.1.2.4 Maintenance

[ Clean Head ]

Troubleshooting

4-8

Samsung Electronics

Shading Profile

Shading History

Maximum Lever : 0196 OK
Minimum Lever : 0135 OK
CIS LED on time : 4960
CIS MAX. UP : 0018 OK
CIS MAX. DV : 0032 OK
CIS Lower Counter : 0000
CIS Lower Valur : 0135

255

0 1728

NO. Shading Time Stored Checksum Calculated Checksum

1. 01-01 2002 13:02 Ox428e 0x428e

[ Adjust Scanner ]

Troubleshooting

4-9

Samsung Electronics

♦ Adjust Scanner(see page 4.8)

Use this adjustment feature to achieve best image (scan)
quality depending on the characteristics of the CIS
(Contact Image Sensor) parts.
Use this feature to correct the reference of the CIS if you
experience bad copy images. When using this feature, a
white paper should be used to get clean copy images.

1. Select [Adjust Scanner] in Service mode

2. Press

'Start/Enter'(A message “Load white paper docu-

ment and press Start/Enter”

is displayed on LCD)

3. Place the empty white paper (Letter size) in a Feeding
unit.

4. The original is scanned when press 'Start/Enter' button.

5. After finish the scan, a message is displayed on LCD
and the ìAdjust scanner profileî is outputted.

6. If the outputted image is different to the normal image,
a CIS is inferiority.

Caution :

1. Always perform Adjust Scanner
after replacing the CIS.

2. Always use a clean white paper in
Adjust Scanner (Maximum paper
width: Letter Size).

3. Adjust Scanner may be per­formed even in the User Mode but
Adjust Scanner profile is output
only in the TECH MODE.

<Reference>
The CIS type scanner needs scanner adjustment opera­tion to get a good scanning quality. This is called as
Shading Compensation .
All kinds of scanner use light have a distortion according
to component tolerance. This tolerance can make a dis­torted scan signal. To cover this problem , the firmware
has a reference scan waveform into the non-volatile
memory for each CIS .
This reference waveform will be made in the factory when
producing the product. But , the scanner , CIS , charac­teristics can be changed as it is used therefore the scan­ning quality can be different with first time. At this time , the
user should initiate this operation from the control panel
menu using white document. Then the old reference
waveform will be replaced with new reference waveform
for current CIS characteristics. This function can be initi­ated in Maintenance menu.
When the new shading waveform is generated , the
waveform will be stored into a Flash memory sector , and
the checksum value is calculated and stored also.
Whenever the scanning job is initiated , the checksum
value is re-calculated and compared with stored check­sum value. If the value is different , the Firmware regards
as the shading waveform be stored into Flash memory is
broken due to unknown reason and will display the mes­sage to indicate retrying Adjusting Scanner operation
before the scanning job.

♦ Self Test (see page 4.11)

It is possible to check whether a machine works properly
or not.
ROM Version/Connect Telephone Line/Shading area
checksum check/Modem check/Cartridge check, etc.

♦ ASF Test

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

♦ 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.

Troubleshooting

4-10

Samsung Electronics

♦ Program Download (Firmware Upgrade)

A new firmware can be downloaded from PC through
USB CABLE. Connect the machine to PC with USB
CABLE, and use additional Firmware upgrade utility.

To download the F/W code,
First, the machine should be Download mode status.

(See How to enter the download mode in machine)

• How to enter the download mode in machine.

1) Press the buttons in sequence
(Menu, #, 1, 9, 3, 4)

2) Press the Menu button repeatedly until
“Maintenance” is display

ed.

3) Press the Start/Enter button when “Maintenance”
is displayed.

4) Press the Scroll/Volume button repeatedly until
“Program Download” is displayed.

5) Press the Start/Enter button when “Program
Download” is displayed.

Second, files needed for download is as follow (Files are
needed for download)

1) ROM FIle

2) SSMFPUSB.inf

3) SSMFPUSB.sys

4) SSUSBCI.DLL

5) usbdown.bat

6) usblist.exe

7) dwcdpcl.bin

8) lxusbopn.dll

• How to Download •

1. Connect a printer and PC with USB CABLE.

2. When a communication box of Plug & Play
shows up, select the location in where the
‘SSMFPUSB.INF’ is.

3. If the communication box of Plug & Play

doesn’t show up, please do the step 6.

4. After USB driver is set up, for confirm it,
select the ‘properties’ by pressing right
mouse button of ‘my computer’ on the
Desktop.

5. Check whether the SF-331P in
‘SamsungUSB’ exists or not at tap in Setting
control. (If not, the down load is impossible)

6. Open a DOS window, change the Directory
Path to where the FIRMWARE exists.

7. Input “USBLIST <FIRMWARE filename>”
and enter.

Troubleshooting

4-11

Samsung Electronics

Self Test

VO.90B 21/06/2002 SF-330 CHECKSUM : FC2EH
Paper Size : A4

1.Tel. Line Test : Check Telephone Line Cord

2. Shading Test : Ok

3. Modem Test : Ok

4. Cartridge Test :

- Head Test Result : OK

- Ink Level : 8/8

[ Self Test ]

Troubleshooting

4-12

Samsung Electronics

System Data

Date : 10-JUL-2002 WED 12:02
Name : SVC MANUAL
Tel. : [phone]

Total Page Counts : 17
Total Feed Document Counts : 1

Options Item Status

SET DATE & TIME
Date Format [USA/Europe] Europe

SETUP SYSTEM
Modem Speed [14.4K/12.0K//9.6K/7.2K/4.8K/2.4K] 14.4 KBPS
Fax TX Level [00-15] 12
Fax RX Level [40-50] 48
CNG Count [1-4] 2
T1 Time [030-150] 55
Fax Error Rate [5% /10% /20%] 10%
Flash Time [100ms/280ms/600ms] 100ms
Pause Time [1-9] 4
Make/Break [40:60 /33:66] 33:66
Ring On Time [00-99] x 10ms 15
Ring Off Time [00-99] x 10ms 90
DTMF High Level [00-15] 08
DTMF Low Level [00-15] 11
Usb Mode [Fast/Slow] Fast
PWM Value Setup [000-208] 109
Dial Mode [Tone/Pulse] Tone

ADVANCED FAX
Fax Forward [Off/forward/(Forward&Print)] Off

SETUP TAM
Save Charge [On/Off] on
Call Monitor [On/Off] on
ICM Record Time [30sec/60sec/90sec] 60sec
Remote Password [000-999] #139#
Silence Action [Disconnect/Receive Fax/Record Silence] Disconnect
Howler Action [Disconnect/Receive Howler] Disconnect
Message Forward [on/Off] Off
Howler Time [000-150] 90*100ms
Silence Time [000-200] 105*100ms
Silence Level [00-48] -36dBm
Parallel Level [100-200] 130

SETUP SOUND
Alarm Sound [On/Off] On
Key Sound [On/Off] On

Flash Rom Version : V0.90T

[ System Data ]

Protocol Dump

Date : 10-JUL-2002 WED 12:03
Name : SVC MANUAL
Tel. : [phone]

S/R FCF FIF Data ASCII

Tx/Rx Speed : 2.4
Tx/Rx Resolution :
Tx/Rx Mode : G3

T30_State

T30_Error
OK

T4_Return

00:T4_SUCCESS
01:T4_UNKNOWN_IN-FORMAT
02:T4_UNKNOWN_OUT_FORMAT
03:T4_ILLEGAL_CONVERSION
04:T4_ABORTED
05:T4_DECODE_ERROR
06:T4_TIME_OUT_ERROR
07:T4_NO_REAL_IMAGE
08:T4_NOT_FOUND_RTC
09:T4_MEMORY_FULL
0a:T4_TASK_BEGINNING

Troubleshooting

4-13

Samsung Electronics

4.1.2.5 Report/Helf

♦ 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 (see page 4.12)

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

♦ Caller ID

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.)

♦ Junk Fax

It is possible not to receive a fax by registering a specific
number, from which you don't want to get fax, with the
Caller ID function.
The fax number registered as Junk Fax can be checked.
A maximum 20 numbers can be registered.

♦ TAM Status

The list shows recorded date & time, recording time and
index of the OGM, ICMs and conversation messages.

♦ Fax Print

The machine stores fax data into memory as far as the
memory is available and lets you print it at laster time.

♦ Shading Profile

It shows the result of the Adjust Scanner.

♦ 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.

[ Protocol Dump ]

Troubleshooting

4-14

Samsung Electronics

♦ NVRAM Dump

NVRAM(nonvolatile random access memory) is non­volatile RAM, therefore, information still reminds after
power off.
Arelative information of using amount of ink cartridge can
be checked.

♦ Memory Dump

Ainner information, which helps to analyze a cause when
a machine has failed during operation, can be printed out.
This is a function to check the memory area to improve a
machine. Do not handle it at will.

♦ Task History

Ainner information, which helps to analyze a cause when
a machine has failed during operation, can be printed out.
This function works to improve goods. When it is handled
at will, it can be malfunctioned. Do not handle it at will.

♦ POWER FAILURE

After the power is off and on , if the received fax image or
stored scheduled fax image are lost , this report is printed
out automatically to indicate what image was lost .
That is , if the power is off during the machine operates ,
the current information can't be backed up .

♦ MULTI COMMUNICATION

When sending original documents to 2 or more locations
with broadcasting , the product prints out the transmission
results automatically after all transmissions are complet­ed.

NVRAM Dump

Date : 13-MAY-2002 MON 14:09
Name : SVC MANUAL
Tel. : [phone]

< Device Identification >
MFG : Samsung;
MDL : SF-331P;
CMD : MLC, PCL, PML;
CLASS : PRINTER;
DESCRIPTION : Samsung SF-331P;

< Dot Count Variables >
Black Dot Count : 9035623
Color Cyan Dot Cout : 0
Color Magenta Dot Count : 0
Color Yellow Dot Count : 0

Total Black Dot Count : 9078831
Total Color Cyan Dot Count : 0
Total Magenta Dot Count : 0
Total Yellow Dot Count : 0

< Page Count Variables >
Totoal Page count : 23

< Alignment Variables >
Horizontal Align Value : 6

[ NVRAM Dump ]

Troubleshooting

4-15

Samsung Electronics

4.2 Maintenance

4.2.1 Cleaning the document scanner

To keep your machine working properly, occasionally
clean the White Roller, ADF Rubber, and the Scanning
Glass. If they are dirty, documents sent to another fax
machine won t be clear.

If you turn the power off to clean the scanner, documents
stored in memory will be lost.

1. Open the Control Panel.

2. Remove the White Roller.

• At the right-hand end of the White Roller there is a bush­ing that is secured with a small tab.

• Push the tab slightly inward, then rotate towards you.
Then pull up the right-hand part to take it out.

3. Wipe the roller surface with a soft cloth dampened with
water.

4. Clean the ADF Rubber piece at the back of the Control
Panel, too.

5. Carefully wipe the Scanning Glass with a soft, dry cloth.

• If the glass is very dirty, first wipe it with a slightly
dampened cloth, then with a dry one.

• Be careful not to scratch the glass surface.

6. Replace the roller in reverse order, and then close the
Control Panel firmly until it clicks into place.