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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 SETUP, #, 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 SETUP,#,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.

4-1-2. Changing Options
. Selectable Options

OPTION
LANGUAGE SENDING CONFIRM FAX PAPER SIZE AUTO REDUCTION DISCARD SIZE RINGS TO ANSWER RCV. START CODE DRPD MODE ECM MODE PRINT QUALITY INK SAVE CALLER ID AUTO JOURNAL MULTIPLE ID

SELECTION

DEFAULT

REMARK

USER MODE OPTIONS(SYSTEM SETUP)
[ON/OFF/ERROR] [LETTER/A4/LEGAL] [ON/OFF] [00-30] [1-7] [0-9] [ON/OFF/SET] [ON/OFF] [LQ/DRAFT] [OFF/MEDIUM/MAX] [ON/OFF] [ON/OFF] [ON/OFF] ENGLISH ERROR A4 ON 15mm 2 *9* OFF ON LQ MEDIUM OFF ON OFF

USER MODE OPTIONS(TAM SETUP)
CHARGE SAVE CALL TRANSFER CALL MONITOR RECORDING TIME REMOTE PASSWORD BATTERY ALARM SILENCE CHECK HOWLER
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[ON/OFF] [ON/OFF] [ON/OFF] [OFF/30SEC/60SEC/90SEC] [000-999] [ON/OFF] [RECEIVE/RECORD/DISCONNECT [ON/OFF]

OFF OFF ON 60 SEC #139# ON DISCONNECT ON

SF-3100T ONLY SF-3100T ONLY SF-3100T ONLY SF-3100T ONLY SF-3100T ONLY SF-3100T ONLY SF-3100T ONLY SF-3100T ONLY
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Service Mode

OPTION
MODEM SPEED SEND FAX LEVEL RCV. FAX LEVEL FLASH TIME PAUSE TIME ERROR RATE SILENCE TYPE SILENCE OE LEVEL SILENCE DROP _T. RING ON TIME RING OFF TIME MF LEVEL (HIGH) MF LEVEL (LOW) ADIUST CENTER SILENCE LEVEL

SELECTION
I[2.4/4.8/7.2/9.6/12.0/14.4] [00/15] [43/48] [00/99] [1/9] [00/99] [UNLIMITED/12 SEC] [20/48] [00/99] [00/99] [00/99] [00/99] [00/99] [00/99]REF=50 [20-48]

DEFAULT
14.4KBPS -12 dBM -48 dBM 80 MS 4 SEC 150 MS UNLIMITED -36 dBM 200 MS 150 MS 800 MS -9 dBM -11 dBM (50) 0 MM -36 dBM

REMARK

SERVICE MODE OPTION(SYSTEM MODE)

SF-3100T ONLY SF-3100T ONLY SF-3100T ONLY

. Service Mode Options MODEM SPEED
Slect an 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 V.27 ter.

FLASH TIME
Choose flash time from 00 through 99 X10 msec.

PAUSE TIME
Choose dial pause time from 1 through 9 seconds.

SEND FAX 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.

SILENCE TYPE
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.

RICEIVE FAX LEVEL
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 -5 and -48 dBm.

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Service Mode

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.

Changing Options
Press SETUP and display shows "SYSTEM DATA". Press START Press or repeatedly to select the desired option. When the desired option appears, press START. When the display shows the values, you can chose using or for that option. After choosing one, press START.

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 00 through 99X10 msec.

RING ON TIME
Select this option when you want to see a valid ring. A ring is valid when its input fingers are equal to or greater than the Ring On time. The valid range entry is 00 ~ 990msec for your selection.

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.

MF LEVEL (HIGH)
Select high frequency level when dialing in the MF mode. The input range is between 00~990dBm.

MF LEVEL (LOW)
Select low frequency level when dialing in the MF mode. The input range is between 00~990dBm.

ADJUST CENTER
This selection allows you to adjust the position you want to print your data on the paper, left and right. The range is between 00~990mm.

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Service Mode

4-1-3. Test Mode
Test mode is used to test machine funtions. Press SETUP and press SETUP on the keypad,in TECH MODE Press or repearedly to select the desired test item. When the desired test mode appears, press START.

FACTORY 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 SETUP. 2. And press SETUP agin. 3. Press or repeatedly until "FACTORY SELF TEST ?" is displayed 4. Press Start. The test pattern is printed.

Examine the test pattern.

Figure 4-1 Self Test Pattern

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Service Mode

Clean Head
The print cartridge ciean head test helps you pinpoint any clogged nozzles. The clean head 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 clean head test : . When you suspect the nozzles are clogged . When characters are not printing completely 1. Press SETUP. 2. Press or repeatedly until `MAINTENANCE' is displayed, then press Start. 3. Press or repeatedly until "CLEAN HEAD?" is displayed. 4. Press Start. The test pattern is printed. Examine the test pattern. 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. 2. Press Start The cartridge carrier moves to the install position. 3. Unplug the power cord from the electrical outlet on the rear of the machine.

Figure 4-2 Clean Head Pattern

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 dty. nozzles

HOW TO WIPE THE NOZZLES AND CONTACTS
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 nozzle . Print cartridge contacts . Print cartridge carrier contacts and deflector 1. Press SETUP, then press or until "CHANGE CARTRIDGE." is displayed.

contact area

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Service Mode

7. Use a CLEAN, DRY CLOTH to clean the print cartridge carrier contacts inside the printer.

DTMF Test
This test is only for factory.

cartridge carrier

Program Download
- Select this option when downloading new Firmware. - Selecting "START" in "PROGRAM DOWNLOAD" will take you straight into "Program download Mode." Therefore DO NOT EVER select this mode for purpose other than downloading new firmware. 8. Clean the carrier deflactor inside the printer.

How to Down Load
carrier deflactor

9. Plug the power cord in, and install the print cartridge. Note: You power choose "OLD" when the display reads ":NEW :USED" if using the saved cartridge.

- At "PROGRAM DOWNLOAD", select the "START" button. "Waiting Download" message will on the screen. - Connect the parallel point from your PC to the parallel point on the back of the printer set. - Punch in the full name of the file that you have downloaded through "Copy /b filename LPT1:" in the PC's MS-DOS. - If the system automatically initialized itself within 15~30 seconds, download is successful. - If no response is shown within the above time period, disconnect and reconnect the power cord (the LED will display nothing at this time). Retry downloading by punching in "Copy /b filename LPT1:" and pressing the Enter key in the MS-DOS mode.

Aging Test ROM Test
This test is only for factory.

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

Tests machine ROM (Read Only Memory). The result and the software version appear in the LCD in the following format: VER. : V1. 00

Rrint Country Code Table
This List is only for factory

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Service Mode

4-1-4. Changing Reports
The fax machine can print reports containing useful information - Standy job, Option Setting, etc. The following reports are available.

Selectable Reports
SENT JOURNAL This report shows information concerning transmission activities. It can be printed on command, on if the machine is set to do so , it will automatically print after every 40 transmissions and/or receptions. options. After you change any setting, print this list to confirm your changes.

VOICE STATUS (SF3100T) This report shows the status of the recorded message.

RECEIVED 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 , it will automatically print after every 40 transmissions and/or receptions.

MULTI COMMUNICATION REPORT This report is printed automatically after sending your document to more than one location.

PHONEBOOK 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.

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.

SENDING CONFIRM This report shows the fax number, the number of pages, elapsed time of the operation, the communication mode, and the communication results.

How To Print Report
SCHEDULE INFORM 1. Press the REPORT button. This list shows the document currently stored for delayed transmission ,Send polling and broadcastingThe list shows the operation number, starting time, type of operation, etc. 2. Choose the report you want to print by using or . 3. Press Start when the desired list is displayed. The selected list will be printed out. SYSTEM DATA This list shows the status of the user-selectable

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