Samsung SCX-5312F Troubleshooting
Troubleshooting
4. Maintenance & Troubleshooting
In this chapter, it was mentioned about the functions for maintaining the product, how to find the causes of the
inferiority, and troubleshooting method.
The service manual is bound the SCX-5312F and SCW-5112 together in one volume.
The SCX-5312F has functions such as printer, copy, scanner, and f ax. The SCX-5112 has all functions as the
SCX-5312F but the fax function.
The contents of the manual are standardized for the SCX-5312F.
The information about the fax function is not applied for the SCX-5112.
The differences by each model are explained in a separate way.
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 REPLACEMENT CYCLE
ADF Rubber 20,000 Pages
ADF Roller 50,000 Pages
Pick-up Roller 75,000 Pages
Transfer Roller 75,000 Pages
Fuser 75,000 Pages
Toner Cartridge 6,000 Pages
Drum Cartridge 15,000 Pages
Samsung Electronics 4-1
Troubleshooting
4-2 Error Messages
Error Message Description Solution
RETRY REDIAL? The machine is waiting for the programmed inter-
val to automatically redial.
COMM. ERROR A problem with the facsimile communications has
occurred.
DOCUMENT JAM Loaded document has Jammed in the feeder
When Document Jam aeeurred at ADF module
DOOR OPEN The side cover is not securely latched. Clear the cover until it clicks in place.
GROUP NOT AVAILABLE You have tried to select a group location where
only a single location number can be used, such
as when adding locations for a multi-dial operation.
LINE ERROR Your unit cannot connect with the remote
machine, or has lost contact because of a problem on the phone line. When the mechine has a
problem in cause of fax data reception step
LOAD DOCUMENT You have attempted to set up a sending opera-
tion with no document loaded.
MEMORY FULL The memory has become full. Either delete unnecessary documents, or
You can press START to immediately
redial, or STOP to cancel the redial
operation.
Try again.
Clear the document Jam.
Try again, check location for group.
Try again. If failure persists, wait an
hour or so for the line to clear then try
again.
Load a document and try again.
retransmit after more memory becomes
available, or split the transmission into
more than one operation.
NO ANSWER The remote machine was not answered after all
the redial attempts.
NO. NOT ASSIGNED The speed dial location you tried to use has no
number assigned to it.
NO PAPER
[ADD PAPER]
OVERHEAT The printer part has overheated. Your unit will automatically return to the
PAPER JAM 0
OPEN/CLOSE DOOR
PAPER JAM 1/2
OPEN/CLOSE DOOR
TONER LOW Toner may be low Toner may be unevenly distributed.
TONER EMPTY When the machine has encountered the Toner
DRUM WARNING When the machine has encountered the drum
The recording paper has run out. The printer system stops.
Recording paper has jammed in paper feeding
area.
Recording paper is jammed in pick-up unit
Recording paper has jammed inside the unit.
Recording paper has jammed in paper exit unit.
Empty.
life,14000 print pages.
Try again.
Make sure the remote machine is OK.
Dial the number manually with the keypad, or assign the number.
Load the recording paper in the paper
feeder.
standby mode when it cools down to normal operating temperature. If failure persists, call service.
Press STOP and clear the jam.
Clear the jam.
Remove the toner cartridge and shake it
gently to evenly distribute the toner . Then
replace the toner cartridge.
Replace the Toner Cartridge.
Use little more change if “REPLACE
DRUM” is marked in LCD window.
REPLACE DRUM When the machine has encountered the out of
from lifr, 15000 print pages.
4-2
Replace the Drum Cartridge.
Samsung Electronics
Troubleshooting
Error Message Description Solution
NO CARTRIDGE When the machine detected the toner cartridge
Install the Cartridge.
has not been installed.
BYPASS JAM When the machine detected the non-feeding from
Open the side Cover and clear the jam.
BYP ASS Tray .
DUPLEX JAM When the machine detected the duplex jam in the
Clear the jam.
middle of machine.
LINE BUSY The remote FAX didn’t answer Try again.
OPEN HEAT EROR Thermister does not connected to main board or
contact point is not coupled tightly in power on.
Check thermister contact point, Heating
Camp & Thermostat.
Heating Error During operation, Temperatare does not go up. Check thermister contact point & Heating
Lamp.
Scanner Locked Scanner is locked by locker. Check locker.
Connect the Flat-Cable.
Samsung Electronics 4-3
Troubleshooting
4-3 User Mode
The table in the bellow explains the possible setting functions by user. The details about the ways to use are
explained in the user manual.
In the service manual, the items are about the possible set-up by user.
4-3-1 SCX-5312F
Function Item Content
SYSTEM DATA CASSETTE PAPER LETTER / A4 / LEGAL
BYPASS PAPER LETTER / A4 / LEGAL
MESSAGE CONF. ON / OFF / ERROR
AUTO JOURNAL ON / OFF
RECEIVE CODE 0-9
POWER SAVE ON / OFF
ECM MODE ON / OFF
RX REDUCTION ON / OFF
DISCARD SIZE 0-30mm
REDIAL INTERVAL 1-15
REDIALS 1-13
ANSWER ON RING 1-7
SEND FROM MEMORY ON / OFF
LOCAL ID ON / OFF
CLOCK MODE 12 / 24 HOUR
SYSTEM ID FAX / ID
DATE & TIME
SYSTEM SETUP PREFIX DIAL NO.
RINGER VOLUME LOW / HIGH (10 STEPS)
ALARM SOUND ON / OFF
KEY SOUND ON / OFF
SPEAKER CONTROL COM / ON /OFF
SELECT LANGUAGE ENG/GER/FRE/ITA/SPA/POR/DUT
USB MODE FAST / SLOW
FAX DUPLEX OFF / LONG EDGE / SHORT EDGE
IMAGE QUALITY NORMAL / TEXT / IMAGE
MEMORY CLEAR SYSTEM ID
SYSTEM DATA
PHONE BOOK / MEMORY
TX-RX JOURNAL
DELA Y TX
MEMORY TX
PRIORITY TX
POLLING
ADD/CANCEL ADD / CANCEL
GROUP DIAL
MAINTENANCE CLEAN DRUM
NEW DRUM
NOTIFY TONER LOW ON / OFF
4-4
Samsung Electronics
Function Item Content
TX CONFIRM
SCHEDULE JOB
PHONE BOOK
SYSTEM LIST
TX JOURNAL
RX JOURNAL
HELP LIST HELP LIST
4-3-2 SCX-5112
Function Item Content
SYSTEM DATA CASSETTE PAPER LETTER / A4 / LEGAL
BYPASS PAPER LETTER / A4 / LEGAL
POWER SAVE ON / OFF
SELECT LANGUAGE ENG/GER/FRE/ITA/SPA/POR/DUT
USB MODE FAST / SLOW
HELP LIST HELP LIST PRINTOUT
MAINTENANCE CLEAN DRUM
NEW DRUM
REPORTS SYSTEM DATA
HELP LIST HELP LIST
Troubleshooting
4-4 T ech Mode
4-4-1 How to Enter Service Mode
In service mode (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 ‘T’, 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 service mode do not remain changed unless you clear the machine’s memory.
Samsung Electronics 4-5
Troubleshooting
4-4-2 Setting-up System in Tech Mode
4-4-2-1 SCX-5312F(SETUP : #, 1, 9, 3, 4)
Function Item Content
SYSTEM DATA DIAL MODE TONE / PULSE
MODEM SPEED
ERROR RATE 5% /10%
SET TX LEVEL 09-15
SILENCE TIME 12 / NU / OFF
SYSTEM ID The same as User Mode
DATE & TIME The same as User Mode
SYSTEM SETUP The same as User Mode
MEMORY CLEAR CLEAR ALL MEMORY
DELAY TX The same as User Mode
MEMORY TX The same as User Mode
PRIORITY TX The same as User Mode
POLLING The same as User Mode
ADD/CANCEL The same as User Mode
GROUP DIAL The same as User Mode
MAINTENANCE CLEAN DRUM
NEW DRUM
NOTIFY TONER LOW ON / OFF
SWITCH TEST
MODEM TEST
SRAM TEST
DRAM TEST
ROM TEST FLASH / ENGINE
PATTERN TEST PATTERN1-7, QAPATTERN1-4, ALL"1-7 , ALL"
CLEAR COUNT PASSWORD
CRU PRINTS COUNT
FLT SCAN COUNT
ADF SCAN COUNT
USED DRUM COUNT
USED TONER COUNT
TOTAL PAGE COUNT
ANSWER ON CNG 1-4
ADJUST SHADING
FLASH UPGRADE LOCAL
REMOTE : USER PROGRAM ,
EMULATION ,BOOT PROGRAM
PROGRAM DIAL
TX CONFIRM The same as User Mode
SCHEDULE JOB The same as User Mode
PHONE BOOK The same as User Mode
SYSTEM LIST USER MODE
TX JOURNAL The same as User Mode
RX JOURNAL The same as User Mode
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Samsung Electronics
Function Item Content
REPORTS MSG. CONFIRM
SCHEDULE JOB
PHONE BOOK
SYSTEM DATA
TRANSMISSION
RECEPTION
HELP LIST
PROTOCOL
ERROR CODE
4-4-2-2 SCX-5112(SETUP : #, 1, 9, 3, 4)
Function Item Content
SYSTEM DATA CASSETTE PAPER LETTER / A4 / LEGAL
BYPASS PAPER LETTER / A4 / LEGAL
POWER SAVE ON / OFF
SELECT LANGUAGE ENG/GER/FRE/ITA/SPA/POR/DUT
USB MODE FAST / SLOW
MAINTENANCE CLEAN DRUM
MODEM TEST
NEW DRUM
SWITCH TEST
SRAM TEST
DRAM TEST
ROM TEST FLASH / ENGINE
PATTERN TEST PATTERN1-7, QAPATTERN1-4 , ALL
CLEAR COUNT PASSWORD
CRU PRINTS COUNT
FLT SCAN COUNT
ADF SCAN COUNT
USED DRUM COUNT
USED TONER COUNT
TOTAL PAGE COUNT
ADJUST SHADING
FLASH UPGRADE
REPORTS SYSTEM DATA
HELP LIST HELP LIST
ERROR CODE
Troubleshooting
Samsung Electronics 4-7
Troubleshooting
4-4-3 SYSTEM DATA
DIALING MODE
Select the dialing mode according to the user's line status.
TONE: Electrical type of dial
PULSE: Mechanical type of dial
SILENCE TIME
In ANS/FAX mode, after a call is picked up by the answering 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 '12 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.
SEND FAX LEVEL
You can set the level of the transmission signal. Typically, the Tx level should be under -12 dBm.
Caution: The Send Fax Level is set at the best condition in the shipment from factory. Never change
settings arbitrarily.
ERROR RATE
When the error rate is about to be over the setting v alue, the Baud r ate automatically lo wers up to 2400 bps to
make the error rate remain below the setting value.
You can select the rate between 5% and 10%.
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 33.6Kbps as default setting.
4-4-4 MEMORY CLEAR
CLEAR ALL MEMORY
The function resets the system as its very first condition as setting in at the factory.
This function is needed to operate to reset the system to the initial value when the product is abnormally operated or malfunction. All the values are returned to the default values, and all the information, which set in by
user, will be erased.
< Method >
1. Select the [MEMORY CLEAR] at the TECH MODE.
2. Push the ENTER button.
3. Select you country.
4. Push the ENTER button then it will be all memory clear. .
NOTICE : Always perform the memory clear after replace the main board. Otherwise, the system may
not operate properly.
4-8
Samsung Electronics
Troubleshooting
4-4-5 MAINTENANCE
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.
The machine automatically pulls in a sheet of paper,and prints out.The toner particles on the OPC drum surface is fixed to the paper.
FLASH UPGRADE
It is Firmware Upgrade function and has two methods, Local and Remote.
More information can be found in the firmware upgrade items.
ADJUST SHADING
The function is to control to get the optimum scan quality by the specific character of the CCD(Charge Coupled Device). If the copy image quality is unsatisfied, perform the function to check the condition of the print
out for checking whether or not having CCD trouble.
< Method >
1. Select the [ADJUST SHADING] at the TECH MODE.
2. Push the SET UP button then an image will be scanned.
3. After the scan, CCD SHADING PROFILE will be print out.
4. If the printed image is different to the image, the CCD is defect.
NOTICE :
that the cover is closed.
When you test CCD, make sure
ANSWER ON CNG
The function is to control the CNG TONE cognition times for entering receiving mode from the AUTO MODE
or ANS/FAX MODE
Samsung Electronics 4-9
Troubleshooting
CLEAR COUNT
This function erases information of history such as replacement times of Developing part and OPC drum,
total printing pages, scan times, and etc.
- The items are in the below section of the System Data List, printed at TECH MODE.
- PASSWOEED: 1934
- Current Drum Page Count cannot be erased.
It is possible to erase at NEW DRUM function (USER MODE ⇒ MINTENANCE ⇒ NEW DRUM)
FIRMWARE VERSION : 1.00
ENGINE VERSION : 1.00
EMULATION VERSION : PCL6 2.32 07-11-2001
TOTAL PAGE COUNTS : 123
CRU PRINTS : 123
REPLACED TONER COUNTS : 1
REPLACED DRUM COUNTS : 1
CURRENT DRUM COUNTS : 112
PLATEN SCAN PAGE COUNTS : 23
ADF SCAN PAGE COUNTS : 10
PCL5e 1.48 07-19-2001
< SYSTEM DATA LIST >
P A TTERN TEST
Using this pattern printout, you can check if the printer mechanism is functioning properly.
It is needed in the production progress. Service person doesn't need to use it.
ROM TEST
Use this feature to test the machine'S ROM. The result and the software version appear in the LCD display.
• FLASH VER : 1.00 V • ENGINE VER :1.00V
DRAM TEST
Use this feature to test the machine's DRAM. The result appears in the LCD display.
If all memory is working normally, the LCD shows << O K >>
SRAM TEST
Use this feature to test the machine's SRAM. The result appears in the LCD display.
If all memory is working normally, the LCD shows << O K >>
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.
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.
4-10
Samsung Electronics
Troubleshooting
NOTIFY T ONER 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.
PROGRAM DIAL
It is a function setting transmitting conditions to transmit to specific address preliminary.
When user transmit specific address set this function, the conditionsapplied automatically.
4-4-6 REPORT/HELP
MSG. CONFIRM
It shows the result of the last send operation.
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.
Facsimile Information Field
data described in hexdecmal code
Sending/Receiving
Name of signal
(Facsimile Control Field)
PROTOCOL DUMP LIST NOV-20-2001
S/R FCF FIF DATA ASCII
S NSF 61005820003380140200001302090018010000
S CSI 2020202020202020202020202O20202020202020
S DIS 00000000 01110111 00010111 00100010
S NSF 61005020003380140200001302090018010000
S CSI 202020202020202020202022O202020220202020
S DIS 00000000 01110111 00010111 00100010
R TSI 2020202020202020202020202O20202020202020
R DCS 00000000 01100001 00010101 00000000
S FTT
R TSI 2020202020202020202020202O20202020202020
R DCS 00000000 01100001 00010101 00000000
S CFR
R MPS
S MCF
S DCN
FIF data described
in ASCII code
HELP
It shows a brief description on the machine's basic functions and commands.
Use it as a quick reference guide
Samsung Electronics 4-11
Troubleshooting
RECEPTION
This journal shows a specific information concerning reception activities, the time and dates of up to 40 of the
most recent receptions.
TRANSMISSION
This journal shows a specific information concerning transmission activities, the time and dates of up to 40 of
the most recent transmissions.
SYSTEM DATA
This list provides a list of the user system data settings and tech mode settings.
PHONEBOOK
It lists all telephone numbers that have been stored in the machine.
SCHEDULE JOB
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.
ERROR CODE
It shows error history occurred using product.
4-4-7 Firmware Upgrade
It is a new Firmware, and there are two Upgrade methods by local and remote.
4-4-7-1 Local Machine
RCP(Remote Control Panel) mode
This method is for Parallel Port.or USB Port Connect to PC and activate RCP(Remote Control Panel) to
upgrade the Firmware.
< Method >
How to Update Firmware using RCP
1. Connect PC and Printer with Parallel Cable or USB Cable.
2. Ex ecute RCP and select Firmware Update. Current Firmware version and Em ulation Version are displayed
on Current version window.
3. Search Firmware file to update with Browse Icon.
4. Click Update icon, firmware file is transmitted to Printer automatically and printer is initialized when it finished.
5. Click Refresh icon and check what is updated.
4-12
Samsung Electronics
Troubleshooting
DOS Command mode
This method is just for Parallel Port. Connect to PC with Parallel cable and enter DOS Command to upgrade
the Firmware.
< Method >
a). The first of all, need the files : down.bat, down_com.bin, fprt.exe, and Rom File : file name for upgrade.Save the files in the
same folder.
b). In the DOS, input as below and push the enter key. Then, it will be automatically upgraded.
c) There are two commands for the conditions of product.
* When the product is in idle condition
down "rom file"
* When the product is in idle condition(TECH MODE → MAINTENANCE → FLASH UPGRADE → LOCAL)
fprt "rom file"
d) Do not turn off the power while upgrading process.
4-4-7-2 Remote FAX
This is a function that a fax with the latest firmware sends files to a fax in long distance through telephone line.
< Method >
1. Operate a fax with the latest firmware to prepare it being upgrade.
(TECH MODE MAINTENANCE FLASH UPGRADE REMOTE)
2. Input the fax number, which needs to be upgraded.
(Several faxes can be upgrade at the same time. In this case, enter the each fax number.)
3. After push the enter button, send the firmware file by calling to the appointed number.
(Around 10~15 minutes needs to send the file.)
< Caution >
1. sending and receiving fax must be the same model.
2. A sending fax must be set up as ECM mode, and a receiving memory must be set up as 100%.
If not, the function operates abnormally.
4-4-8 Identify Sale Date(Only SCX-5312F)
This function confirms the date that consumer buys product and use product by first actually.
If make consumer buy and operate the machine, the machine recogniz e the first Scan page count, Print page
count etc.
The time is remembered to first machine use event.
< Method >
These contents are remembered continuously after memory delete (Clear All Memory).
Method : Press MENU, #, 1, 9, 3, # in sequence.Firmware version is displayed on LCD.
FLASH VER : 1.00
ENGINE VER : 1.00
Press 1( in the number keypad) : The LCD display shows "Updated date"
Press 2( in the number keypad) : The LCD display shows "Product first use date"
Samsung Electronics 4-13
Troubleshooting
4-5 ENGINE TEST MODE
The Engine Tests Mode supplies useful functions to check conducting condition of engine. It tests the conducting condition of each device and displays the result of the test at the LCD. It is classified in 6. items (0~5),
and the functions of items are as bellows.
4-5-1 To enter the Engine Test Mode
Press MENU, #, 1, 9, 3, 1 in sequence, and the LCD briefly displays ‘T’, the machine has entered service
(tech) mode.
4-5-2 Diagnostic
No. Sub No. Engine test
0 1 Motor Test 1: On, 2: Off
2 PTL Test 1: On, 2: Off
3 Fan Test 1: On, 2: Off
: On, 2: Off
4 Fuser Test
1 1 LSU Motor Test 1: On, 2: Off
2 LSU Hsync Test 1: On, 2: Off
3 LD On Test 1: On, 2: Off
4 LSU Operation 1: On, 2: Off
2 1 Feed Sensor Test Sensor O n : FEED SENSOR ON D isplay
2 Exit Sensor Test Sensor On : EXIT SENSOR ON Display
3 Cov er Sensor T est Sensor O n : COVER SENSOR ON Display
4 1’st CAST Emp ty Test Sensor O n : 1’st PAPER Em pty Display
5 MP Empty Sen Test Sensor On : MP PAPE R Empty Dis play
6 BIN FULL Sen TEST Sensor On : BIN F ULL SEN ON D isplay
3 1 1’st C AST Solenoid Test 1: On, 2: Off
2 MP Solenoi d Test 1: On, 2: Off
3 Duplex Solenoid Test 1: On, 2: Off
4 1 MHV Test 1: On, 2: Off (-1450v)
2 Dev Bias Test 1: On, 2: Off ( -450v)
3 THV EN/NEG Test 1: On, 2: Off
4 THV Test 1: On, 2: Off (1300v)
5 THV Trigger T est 1: On, 2: Off
5 1 All Function Test
1
If its temperature is lower than the Standby
(160 C), the fuser is on, but if it is higher than
the Standby, the fuser is off.
Sensor O ff : FEED SENSOR OFF Display
Sensor Off : EXIT SENSOR OFF D isplay
Sensor O ff : COVER SENSOR OFF Display
Sensor O ff : 1’st PAPER N o Empty D isplay
Sensor O ff : MP PAPER No E mp ty Display
Sensor O ff : BIN FULL SEN O FF Display
For SMD Test, Push up key : Next function
All Function : N o.0~4
Remark
4-5-3 ENGINE PRINT
When the function is on, sentence to explain the condition of engine is printed in the below section of the printing output.
4-14
Samsung Electronics
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