Samsung SCX-4521F Alignment & Adjustment

Samsung Electronics

Service Manual

Alignment and Adjustments

4-1

4

4

4. Alignment and Adjustments

4.1 User Mode

The table below shows the map of User settings available in User Mode. These are fully described in the
User Guide and are not included here.

Paper Type

Plain Paper, Thick, Thin, Plain Paper
Bond, Color Paper, Card
stock, Labels, Transparency,
Envelope, Preprinted

Paper Size A4, Legal, Executive, Folio By Country

A5, B5, A6, Letter
Machine ID Fax:
(Only SCX-4521F) ID:
Date & Time 00-00-0000
(only SCX-4521F) 00:00(AM)
Clock Mode 12, 24 hours 12hours
(only SCX-4521F)
Language [English/FRANCAIS/Espanol/ English

Portugues/Deutsch/Italiano/

Pycckn/Norsk/Polski/

Suomi/Magyar/Dansk/

cestina/Svenska/Turkse

- 15 language

Power Save On 5, 10, 15, 30, 45 min. 5

Off
Ignore Toner On

Off
USB Mode Fast/Slow Fast

1. Paper Setting

Paper Type

2.Machine Setup

Machine ID

1

2

1

2

3

4

5

6

7

1st level 2nd level 3rd level Default Value

RETURN -- RETURN

left/right && Enter -- 14 character left/right && Enter

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Service Manual

4-2

Default-Change Darkness Light/Normal/Dark Normal

Original Type Text, Text/Photo, Photo Text
Reduce/Enlarge [Original(100%)] 100%

[LGL

LTR(78%)]

[LGL

A4(83%)]

[A4

A5](71%)]

[A4

LTR(94%)]

[EXE

LTR(104%)]

[A5

A4](141%)]
25%
50%
150%
200%
400%
[Custom:25-400]

No. of Copies [1-99] 1
Timeout 15,30,60,180Sec, Off 60sec
Favorite copy Clone

Copy Collate

Autofit

2 side in 1 Pg

2 UP

4 UP

Poster
Off
Clone
Copy Collate
Autofit
ID Card Copy
2 UP This will set to 2UP
4 UP This will set to 4UP
Poster

3.Copy Setup

Default-Change

4. Copy Feature

Off

1

2
3

1
2
3
4
5
6
7
8

1st level 2nd level 3rd level Default Value

RETURN -- RETURN

left/right && Enter -- 14 character left/right && Enter

Samsung Electronics

Service Manual

Alignment and Adjustments

4-3

Default-Change Resolution Standard/Fine/Super Standard

Fine/Photo/Color
Ring to Answer 1~7 2
Darkness Light/Normal/Dark Normal
Redial Term 1~15Min 3minutes
Redials 1~13times 7times
MSG Confirm On, Off, On-Error On-Error
Image TCR On, Off
Auto Report On, Off On
Auto Reduction On, Off On
Discard Size 0~30mm 20mm
Receive Code 0~9 9
DRPD Mode set
Receive Mode Fax, Tel, Ans/Fax, DRPD
Delay Fax Fax:
Priority Fax Fax:
Add Page Yes, No
Cancel Job Yes, No
Send Forward On,Off Off
RCV Forward On Start Time/ End Time

Print Local Copy

Off Off

Junk Fax Setup On Fax:

Off Off
Secure Receive On,Off, Print Off
Prefix Dial FAX: xxxxx (5 digits)
Stamp RCV Name On, Off Off
ECM Mode On, Off On
Phone Book
(only SCX-4521F)
Sent Report
(only SCX-4521F)
RCV Report
(only SCX-4521F)
System Data
Scheduled Jobs
(only SCX-4521F)
MSG Confirm
(only SCX-4521F)
Junk Fax List
(only SCX-4521F) 10 ea
Speaker On, Off, Comm. Comm.
Ringer Off, Low,Med,High Med
Key Sound On, Off Off
Alarm Sound On, Off On

5. Fax Setup

(only SCX-4521F)

Default-Change

6. Fax Feature

(only SCX-4521F)

Delay Fax

7. Advanced fax

(only SCX-4521F)

8. Reports

Phone Book

9. Sound/Volume

Speaker

1

2
3
4
5
6
7
8

9
10
11
12
13

1

2

3

4

1

2

3

4

5

6

7

1

2

3

4

5

6

7

1

2

3

4

1st level 2nd level 3rd level Default Value

RETURN -- RETURN

left/right && Enter -- 14 character left/right && Enter

<continue..>

Alignment and Adjustments

Samsung Electronics

Service Manual

4-4

Clean Drum On,Off Off
Notify Toner On,Off Off
Clear Memory Clear All Mem.

Paper setting
Machine Setup
Copy Setup
Fax Setup
Fax Feature
Advanced Fax
Sound/Volume
Sent Report
RCV Report

Phone Book
Remote Test On Off
(only SCX-4521F) Off

10. Maintenance

Clean Drum

1
2
3

4

1st level 2nd level 3rd level Default Value

RETURN -- RETURN

left/right && Enter -- 14 character left/right && Enter

<continue..>

Samsung Electronics

Service Manual

Alignment and Adjustments

4-5

4.2 Tech Mode and Setting

4.2.1 How to Enter Tech Mode

In service (tech) mode the technician can check the machine and perform various tests to help with failure
diagnosis.

When in Tech mode the machine still performs all normal operations.

To enter the Tech mode (SCX-4521F)

To enter the Tech mode press in sequence and the LCD
briefly displays ‘TECH’, the machine has entered service (tech) mode.

To enter the Tech mode (SCX-4321)

To enter the Tech mode press in sequence and the LCD
briefly displays ‘TECH’, the machine has entered service (tech) mode.

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Samsung Electronics

Service Manual

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4.2.2 Setting-up System in Tech Mode

Data Setup Send Level -9~-15 -12

(only SCX-4521F)

Modem Speed 33.6, 28.8, 14.4, 12.0, 9.6, 4.8 33.6

(only SCX-4521F)

Error Rate (only SCX-4521F) 5%, 10% 10%

Dial Mode (only SCX-4521F) Tone, Pulse Tone

Notify Toner Customer No.

Customer Name
Service No.

Serial No.
Clear All Mem.
Clear Count Total Page Count Enter Password

CRU Print CNT

FLT Scan Count

ADF Scan Count

Used Toner CNT

Edit Toner Dot
Flash Upgrade Local

Remote
Silence Time Off/ 12 Sec/Unlimited Off
(only SCX-4521F)

Machine Test Switch Test

Modem Test
(only SCX-4521F)
Dram Test
Rom Test
Pattern Test
Shading Test

Report Protocol(only SCX-4521F)

System Data

Key History Error Info
New Cartridge

Tech Mode

Data Setup

1

2

3

1st level 2nd level 3rd level Default Value

RETURN -- RETURN

left/right && Enter -- 14 character left/right && Enter

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Service Manual

Alignment and Adjustments

4-7

4.2.3 Setting

4.2.3.1 Changing the Display Language

To change the language that displays on the control panel, follow these steps:

1. Press Menu until “Machine Setup” appears on the top line of the display.

2. Press the scroll button ( or ) until “Language” appears on the bottom line of the display.

3. Press Enter. The current setting appears on the bottom line of the display.

4. Press the scroll button ( or ) until the language you want appears on the display.

5. Press Enter to save the selection.

6. To return to Standby mode, press Stop/Clear.

4.2.3.2 Setting the Machine ID (Only for SCX-4521F)

In some countries, you are required by law to indicate your fax number on any fax you send. The Machine
ID, containing your telephone number and name (or company name), will be printed at the top of each page
sent from your machine.

1. Press Menu until “Machine Setup” appears on the top line of the display. The first available menu item,
“Machine ID,” displays on the bottom line.

2. Press Enter. The display asks you to enter the fax number.
If there is a number already set, the number appears.

3. Enter your fax number using the number keypad.

4. Press Enter when the number on the display is correct. The display asks you to enter an ID.

5. Enter your name or the company name using the number keypad.
You can enter alphanumeric characters using the number keypad, and include special symbols by
pressing the 0 button.
For details on how to use the number keypad to enter alphanumeric characters.
If you want to enter the same letter or number in succession, enter one digit, move the cursor by
pressing the button and enter the next digit.
If you want to insert a space in the name, you can also use the button to move the cursor to skip the
position.

6. Press Enter when the name on the display is correct.

7. To return to Standby mode, press Stop/Clear.

NOTE: If you make a mistake while entering numbers, press the button to delete the last digit.

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Service Manual

4-8

4.2.3.3 Setting the Date and Time

When you turn your machine on for the first time, the display prompts you to enter the current date and time.
After entering, it will not appear anymore. For the SCX-4521F, all of your faxes will have the date and time
printed on them.

1. Press Menu until “Machine Setup” appears on the top line of the display.

2. Press the scroll button ( or ) to display “Date & Time” on the bottom line and press Enter.

3. Enter the correct time and date using the number keypad.
For the SCX-4321, press the scroll button ( or ) to enter the time and date.

Month = 01 ~ 12
Day = 01 ~ 31
Year = requires four digits
Hour = 01 ~ 12 (12-hour mode)
00 ~ 23 (24-hour mode)
Minute = 00 ~ 59

You can also use the scroll button ( or ) to move the cursor under the digit you want to correct
and enter a new number. For the SCX-4321, you can use Enter or Upper Level to move the cursor.

4. To sel ect “ AM” or “PM” for 12-hour format, press the or # button or any number button.
For the SCX-4321, press Enter and then the scroll button ( or ).
When the cursor is not under the AM or PM indicator, pressing the or # button immediately moves
the cursor to the indicator. For the SCX-4321, press the scroll button ( or ) to move the cursor to
the indicator.
You can change the clock mode to 24-hour format (e.g. 01:00 PM as 13:00).

5. Press Enter when the time and date on the display is correct.
When you enter a wrong number, the machine beeps and does not proceed to the next step. If this
happens, just reenter the correct number.

6. To return to Standby mode, press Stop/Clear.

4.2.3.4 Changing the Clock Mode

You can set your machine to display the current time using either a 12-hour or 24-hour format.

1. Press Menu until “Machine Setup” appears on the top line of the display.

2. Press the scroll button ( or ) until you see “Clock Mode” on the bottom line and press Enter.
The clock mode currently set for the machine displays.

3. Press the scroll button ( or ) to select the other mode and then press Enter to save the selection.

4. To return to Standby mode, press Stop/Clear.

NOTE: If power to the machine is cut off, you need to reset the correct time and date once the power has been

restored.

NOTE: The date format may differ from country to country.

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Service Manual

Alignment and Adjustments

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4.2.3.5 Setting the Paper Size and Type

After loading paper in the tray, you need to set the paper size and type using the control panel buttons.
These settings will apply to copy and fax modes. For PC-printing, you need to select the paper size and type
in the application program you use on your PC.

1. Press Menu.
The display shows “Paper Setting” on the top line of the display.

2. Press the scroll button ( or ) to display “Paper Size” on the bottom line and press Enter to access
the menu item.

3. Use the scroll button ( or ) to find the paper size you are using and press Enter to save it.

4. Press the button to scroll to “Paper Type” and press Enter to access the menu item.

5. Use the scroll button ( or ) to find the paper type you are using and press Enter to save it.

6. To return to Standby mode, press Stop/Clear.

4.2.3.6 Setting Sounds (Only for SCX-4521F)

You can control the following sounds:

• Speaker: You can turn on or off the sounds from the telephone line through the speaker, such as the dial

tone or a fax tone. With this option set to “Comm.” the speaker is on until the remote machine
answers.

• Ringer: You can adjust the ringer volume.

• Key Sound: With this option set to “On” a key tone sounds each time a key is pressed.

• Alarm Sound: You can turn the alarm sound on or off. With this option set to “On” an alarm tone sounds

when an error occurs or fax communication ends.

• You can adjust the volume level using the On Hook Dial button.

4.2.3.7 Speaker, Ringer, Key Sound, and Alarm Sound

1. Press Menu until “Sound/Volume” appears on the top line of the display.

2. Press the scroll button ( or ) to scroll through the options. Press Enter when you see the desired
sound option.

3. Press the scroll button ( or ) to display the desired status or volume for the option you have
selected. You will see the selection on the bottom line of the display. For the ringer volume, you can
select “Off,” “Low,” “Med,” and “High”. Setting “Off” means that the ringer does not sound. The machine
works normally even if the ringer is turned off.

4. Press Enter to save the selection. The next sound option appears.

5. If necessary, repeat steps 2 through 4.

6. To return to Standby mode, press Stop/Clear.

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Service Manual

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4.2.3.8 Speaker Volume

1. Press On Hook Dial. A dial tone sounds from the speaker.

2. Press the scroll button ( or ) until you hear the volume you want. The display shows the current
volume level.

3. Press On Hook Dial to save the change and return to Standby mode.

4.2.3.9 Toner Save Mode

Toner Save mode allows your machine to use less toner on each page. Activating this mode extends the life
of the toner cartridge beyond what one would experience in the normal mode, but it reduces print quality.

To turn the toner save mode on or off, press Toner Save.

• If the button backlight is on, the mode is active and the machine uses less toner when printing a document.

• If the button backlight is off, the mode is deactivated and the machine prints with the normal quantity of toner.

4.2.3.10 Power Save Mode

Power Save mode allows your machine to reduce power consumption when it is not in actual use. You can
turn this mode on and select a length of time for which the machine waits after a job is printed before it
switches to a reduced power state.

1. Press Menu until “Machine Setup” appears on top line of the display.

2. Press the scroll button ( or ) until “Power Save” appears on the bottom line. Press Enter.

3. Press the scroll button ( or ) to display “On” on the bottom line and press Enter.
Selecting “Off” means that the power save mode is deactivated.

4. Press the scroll button ( or ) until the time setting you want appears.
The available options are 5, 10, 15, 30, and 45 (minutes).

5. Press Enter to save the selection.

6. To return to Standby mode, press Stop/Clear.

NOTE: You can adjust the speaker volume only when the telephone line is connected.

Samsung Electronics

Service Manual

Alignment and Adjustments

4-11

4.2.4 FLASH UPGRADE

There are 2 methods to update the Flash Rom, Local and Remote.

(1) Local Machine

• RCP (Remote Control Panel) mode
This method is for Parallel Port or USB Port. Connect the PC and activate the RCP (Remote Control Panel) to
upgrade the Firmware.

< Method >
How to Update Firmware using RCP

1. Connect PC and Printer with a Parallel Cable or a USB Cable.

2. Run the RCP utility and select Firmware Update.

3. Search for the Firmware file to be used to update the set using the Browse Icon.

4. Click the Update icon. The firmware file is transmitted to the Printer automatically and the printer is
initialized when the download completes.

5. Click the Refresh icon and check that the updated version numbers are displayed.

• DOS Command mode
This method is ONLY for Parallel Port. Connect the PC to the set using a Parallel Cable and enter the DOS
Command to upgrade the firmware.

< Method >

1. First of all you need the following files : down.bat, down_com.bin, fprt.exe, and Rom File: (file name for
upgrade). Ensure you save ALL of these files in the same folder.

2. At the DOS prompt enter the correct command (as shown below) and push the enter key.
Then the upgrade will automatically take place..

3. There are two commands use the correct one depending on the condition of the set..

* When the product is in the idle condition

down "rom file"

* When the product is in Ready condition

(TECH MODE --> DATA SETUP --> FLASH UPGRADE --> LOCAL)

copy/b "rom file" lpt1

4. Do not turn off the power during the upgrade process.

(2) Remote FAX

It is possible to use a set that already has the latest firmware to upgrade a remote set remotely using the
telephone system.

< Method >

1. On the set that has the latest firmware set it toi transmit the upgrade:­(TECH MODE •DATA SETUP•••• FLASH UPGRADE•••• REMOTE)

2. Enter the telephone number of the set that needs to be upgraded.
(Several faxes can be upgrade at the same time. In this case, enter each fax number.)

3. When the enter button is pressed the set sends the firmware file by calling designated fax number.
(Around 10~15 minutes are needed to send the file.)

< Caution >

1. The Sending and Receiving fax machines MUST be the same model.

2. The sending fax must be set up in ECM mode and the Receiving fax memory must be 100%.
If not the function will not work.

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Service Manual

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4.2.5 Machine Test

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.

MODEM TEST

Use this feature to hear various transmission signals to the telephone line from the modem and to
check the modem, amplifier and speaker. If no transmission signal sound is heard, it means the
modem part of the main board, amplifier, speaker or speaker harness is faulty.

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 >>

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

PATTERN TEST

Using this pattern printout you can check that the printer mechanism is functioning properly.
This function is for factory manufacturing use only.

SHADING TEST

The function is used to set the optimum scan quality determined by the specific characteristics of the
CIS(Contact Image Sensor). If copy image quality is poor perform this function to check the
condition of the CIS unit.

< Method >

1. Select the [Shading Test] in TECH MODE
(Menu, #, 1934).

2. Push the ENTER button and an image will
be scanned.

3. After scanning the CIS SHADING PROFILE
will be print out.

4. If the printed image is different to the
sample image shown the CIS is defective.

NOTICE : When you test the CIS, make

sure that the cover is closed.

MAX=229 Min=168 Avg=193 Diff=15 PRNU=6

MAX=234 Min=174 Avg=200 Diff=14 PRNU=7

MAX=241 Min=179 Avg=204 Diff=14 PRNU=4

MAX=240 Min=176 Avg=202 Diff=15 PRNU=6

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Alignment and Adjustments

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4.2.6 Report

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

SYSTEM DATA

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

KEY HISTORY

This list shows th input key history.

ERROR INFO

This list display the detail machine error list.

Alignment and Adjustments

Samsung Electronics

Service Manual

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4.3 Control Panel

4.3.1 Control Panel Functions (SCX-4521F)

SCX-4521F

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Service Manual

Alignment and Adjustments

4-15

Alignment and Adjustments

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Service Manual

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4.3.2 Control Panel Functions (SCX-4321)

SCX-4321

Samsung Electronics

Service Manual

Alignment and Adjustments

4-17

4.4 LCD Status Error Massages

STATUS LCD Display Descriptions

Document Jam Document Jam When Document Jam occurred at ADF module.

This is displayed on LCD, Print in the Transmission Journal.

Door Open or Jam [Front or Rear] When machine’ front side cover or Jam Cover was opened, it
Cover Open [Cover Open] displayed On the LCD.

NO paper [ No Paper ] When there is no paper in CASSETTE Tray, machine Displays

Add Paper this message on LCD.

PAPER JAM 0 [Paper Jam 0] When the machine encountered paper jam in pick up area,

Open/Close Door Machine displays on the LCD until DOOR OPEN & CLOSE.

PAPER JAM 1 [Paper Jam 1] When the machine encountered paper jam in paper exit of Machine,

Open/Close Door machine displays on the LCD until DOOR OPEN & CLOSE.

PAPER JAM 2 [Paper Jam 2] When the machine encountered paper jam in paper exit of Machine,

Check Inside machine displays on the LCD until DOOR OPEN & CLOSE.

Communication Error [COMM. Error] When the machine has problem in communication, It displayed on

the LCD.
Machine displays this in case of Transmission.

Machine displays this in case of fax handshaking step of Reception.
Line Error [Line Error] When the machine has problem in case of Fax Data reception step.
NO ANSWER [No Answer] When the machine could not connect to remote fax after Completion

of redial up to redial counter in system data.
INCOMPATIBLE [Incompatible] Remote party did not have the requested feature, such as polling.
LINE BUSY Line Busy The remote fax didn’t answer.
POWER FAILURE Power Failure When the machine’s user memory has not been backup and There

was power off / on .
STOP PRESSED [Stop Pressed] When the operator pressed the STOP button during transmission.
MEMORY FULL Memory Full When the machine has encountered the user memory was full,
FUSER ERROR CRU Fuse Error When the machine failed in installing the new toner cartridge.
LSU ERROR [Hsync Error] tech mode
LSU ERROR [LSU Error] user mode

When the machine has encountered the Laser Beam Scanning unit

could not reach the READY state,
TONER LOW [Toner Low] When the machine has encountered the Toner Low,
TONER EMPTY [Toner Empty] When the machine has encountered the Toner Empty,

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Service Manual

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STATUS LCD Display Descriptions

BY PASS JAM [Bypass Jam] When the machine detected the non feeding from BYPASS Tray.
GROUP is not available Group Not Available You have tried to select a group location where only a single

Location number can be used.

RETRY REDIAL? Retry Redial ? the machine is waiting for the programmed interval to automatically

redial a previously busy station.
NO. NOT ASSIGNED NO. Not Assigned The speed dial location you tried to use has no number assigned to it.
Load document Load Document You have attempted to set up a sending operation with no

Document loaded.
Memory full and canel the job Cancel ? When the machine has encountered the memory full during storing

1:Yes 2:No the document into memory, the machine display the "CANCEL ?" to

operator whether he/she make a decision the canceling the job or

accept the scanned page so far to transmit the remained

documents.
Job has not been created Operation Not When operator is doing in ADD/CANCEL operation and

Assigned There is no job to handle if operator entered the job no.
Low Heat Error [Low Heat Error] Temperature could not reach certain level.
Open Fuser Error Open Fuser Error The thermister has been disconnected.
Over Heat Error [Over Heat] Temperature has gone up very high degree.

[Jam 1] When the machine detected the toner cartridge has not

[No Catridge] been installed, or detected jam1 in warmup state.
Memory Dial Full Memory Dial Full During Auto dial transmission when all 15 jobs are configured and

try to add 16th job

<continue..>

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Service Manual

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4.5 Engine Test Mode

The Engine Test Mode supplies useful functions to check the condition of the print engine. It tests the condition of each
device and displays the result of the test on the LCD. It is divided into 5 functions (0~4), and these are shown below.

4.5.1 To enter the Engine Test Mode

To enter the Engine Test mode (SCX-4521F)

Press in sequence, and the LCD briefly displays
‘Engine Test’, the machine has entered Engine Test Mode.

Press “0”, “1”, “2”, “3” or “4” to select the Test No. (see list below – left hand column)

To enter the Engine Test mode (SCX-4321)

Press in sequence, and the LCD briefly displays
‘Engine Test’, the machine has entered Engine Test Mode.

Press “0”, “1”, “2”, “3” or “4” to select the Test No. (see list below – left hand column)

4.5.2 Diagnostic

NO. Sub No. Engine test Remark

0 1 Motor Test 1 : On, 2 : Off – next test selected

2 Pick Up Test 1 : On, 2 : Off – next test selected
3 Fan Test 1 : On, 2 : Off – next test selected
4 Manual Clt Test 1 : On, 2 : Off – next test selected
5 PTL Test 1 : On, 2 : Off – next test selected

1 1 LSU Motor Test 1 : On, 2 : Off – next test selected

2 LSU Hsync Test 1 : On, 2 : Off – next test selected
3 LD Test 1 : On, 2 : Off – next test selected

2 1 Feed Sensor Test 1. Check : read the sensor

2. Next : Next Sensor test

2 Exit Sensor Test 1. Check : read the sensor

2. Next : Next Sensor test

3 Cover Sensor Test 1. Check : read the sensor

2. Next : Next Sensor test

4 Empty Sensor Test 1. Check : read the sensor

2. Next : Next Sensor test

5 Manual Sensor Text 1. Check : read the sensor

2. Next : Next Sensor test

3 1 Therm ADC 180 1 : On, 2 : Off (maintain the fusing temp. 80˚C)

2 Therm ADC 140 1 : On, 2 : Off (maintain the fusing temp. 135˚C)
3 Therm ADC 120 1 : On, 2 : Off (maintain the fusing temp. 160˚C)
4 Therm ADC 100 1 : On, 2 : Off (maintain the fusing temp. 191˚C)

4 1 MHV Test 1 : On, 2 : Off (-1550V ±50V)

2 Dev Bias Test 1 : On, 2 : Off (-430V ± 20V)
3 THV EN/NEG Test 1 : On, 2 : Off (-1200V +300V/-150V)
4 THV ON (1300V) 1 : On, 2 : Off (+1300V ±20V)
5 THV ADC 1300V 1 : On, 2 : Off (ADC Value : 101 ±5)
6 THV ADC 600V~3500V 1 : On, 2 : Off (Compare each ADC Value)

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4.5.3 Detail Description (Engine T est Mode)

Function Name Description Display

01.Motor Test The main motor starts when the execution key is pressed Main Motor On/Off
and stops when the stop key is pressed.

02.Pick Up Test Automatically stops, when the execution is chosen. Tray 1,2 Solenoid On/Off
stops, when the execution is chosen.

03.Fan Test The fan starts when the execution key is pressed and Fan On/Off
stops when the stop key is pressed.

04.Manual Clutch Test The tray2,3 clutch is on for 1sec and then it automatically Tray 2,3 Clutch On/Off
stops, when the execution is chosen.On this function,
the main motor runs before 2sec from the point of the clutch
on in order to check the clutch state.

05.PTL Test PTL(Pre-Transfer Lamp) is lights when the execution key PTL On/Off
chosen and it stops when the stop key is chosen.

11.LSU Motor The laser motor starts when the execution key is pressed Laser Motor On/Off
and stops when the stop key is pressed.

12.LSU Hsync Test The LSU motor starts and "Laser Ready" is displayed if Laser Leady On/Off
the motor spins at the correct speed, otherwise "Laser Error"
is displayed.

13.LD Test "Diode On" is displayed, when the laser diode is on. Diode On/Off
Otherwise "Diode Off" is displayed.

21.Feed Sen Test These functions allow the current state of the sensor to be

"Sensor Off" or “ Sensor On ”

22.Exit Sen Test displayed.

23.Cover Sen Test This function allows the current state of the Cover sensor

"Cover Open" or "Cover Close"
to be displayed. Touch the sensor and confirm that the
message changes: "Cover Open" to " Cover Close"

24.Empty Sen Test These functions allow the current state of the sensor to be

"Sensor Off" or “ Sensor On ”

25.Manual Sen Test displayed.

31.Them ADC 180 "Current value" is displayed on the upper line of the LCD, Target temperature and

32.Them ADC 140 and "Target value" on the bottom line. output temperature from

33.Them ADC 120 Target value is limited from "191°C" to "80°C" thermistor and ADC.

34.Them ADC 100

41.MHV Test These Functions are provided to check whether the MHV On/Off

42.Dev Bias Test control of the HVPS is functioning correctly. Dev Bias On/Off

43.THV EN/NEG Test THV EN/NEG On/Off

44.THV ON(1300V) THV On/Off

45.THV ADC 1300V ADC value displayed.

46.THV ADC 600V~3500 ADC value displayed.

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4.6 Paper Path and Clearing Paper Jams

4.6.1 Copy & Scan Document Path

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4.6.2 Printer Paper Path

1) After receiving a print command, the printer feeds paper from the main cassette or manual feeder as required.

2) The paper being fed passes the paper feed sensor. (Jam 0 occurs if the sensor is not operated within a certain time)

3) Having passed the paper feed sensor the paper moves to the paper exit sensor via printing process. (Jam 1
occurs if the sensor is not operated within a certain time)

4) The paper then passes through the paper exit sensor and out of the set. (Jam 2 occurs if the trailing edge of the
paper does not pass the exit sensor within a certain time of the paper leading edge activating the exit sensor)

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4.6.3.1 In the Tray

1. Remove the jammed paper in the tray by gently
pulling it straight out.

2. Open and close the front door to resume printing.

4.6.3 Clearing Paper Jams

When a paper jam occurs, “Paper Jam” appears on the display.
Refer to the table below to locate and clear the paper jam.

To avoid tearing the paper, pull out the jammed paper gently and slowly. Follow the instructions in the following
sections to clear the jam.

Message Location of Jam

[Paper Jam 0] In the tray
Open/Close Door
[Paper Jam 1] In the fuser area or around the toner
Open/Close Door cartridge.
[Paper Jam 2] In the paper exit area
Check Inside

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1. Open the front door and pull the toner cartridge out,
lightly pushing it down.

2. Remove the jammed paper by gently pulling it
straight out.

3. Replace the toner cartridge and close the front
door. Printing automatically resumes.

4.6.3.2 In the Fuser Area or Around the T oner Cartridge

NOTE: The fuser area is hot. Take care when

removing paper from the machine.

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1. Open and close the front door. The jammed paper
automatically exits the machine.
If the paper does not exit, continue to step 2.

2. Gently pull the paper out of the output tray.

3. If there is any resistance and the paper does not
move when you pull, or if you cannot see the paper
in the output tray, open the rear door by pulling the
tab on it.

4. Remove the jammed paper by gently pulling it
straight out.

5. Close the rear door.

6. Open and close the front door to resume printing.

4.6.3.3 In the Paper Exit Area

NOTE: Inside of the machine is hot. Take care

when removing paper from the machine.

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1. Load the paper into the tray, as shown below.

2. Open the printer’s properties window, set the paper
size to A5 from the Paper tab.

3. From the Orientation option of the Layout tab, set
the Rotate option to 90 .

4. Click OK to start printing.
For details, see Software User’s Guide.

4.6.3.4 Tips for Avoiding Paper Jams When Printing on the A5-sized Paper

If paper jams occur frequently when you print on A5-sized paper:

4.6.3.5 Tips for Avoiding Paper Jams

By selecting the correct paper types, most paper jams can be avoided. When a paper jam occurs.

• Follow the procedures in “Loading Paper”. Ensure that the adjustable guides are positioned correctly.

• Do not overload the tray.

• Do not remove paper from the tray while your machine is printing.

• Flex, fan, and straighten the paper before loading.

• Do not use creased, damp, or highly curled paper.

• Do not mix paper types in the tray.

• Use only recommended print materials. See “Paper Specifications”.

• Ensure that the recommended print side of print materials is facing up in the tray.