SAMSUNG SCX-4100_XEV Service Manual Alignment & Adjustment

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6

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Samsung Electronics

Alignment & Adjustments

Service

Manual

6. Alignment and Adjustments

This chapter describes some of the main service procedures including:
Using the EDC mode; Clearing paper jam and test patterns.
Much of this chapter is also included in the user's guide.

6.1 Engine Test Mode

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

6.1.1 To enter the Engine Test Mode

To enter the Engine Test mode

Press in sequence, and the LCD briefly displays
'Engine Test [Diagnostic]', the machine has entered Engine Test Mode.

• To enter a lower menu (Sub menu) Press the Start/Enter key.

• To exit into an upper menu Press the Menu/Exit key.

• To return to the user menu Press the Menu/Exit key.

6.1.2 Diagnostic

Menu/Exit Menu/ExitDarkness

Main Menu Engine test Remark

ENGINE TEST Motor Test 1 : On, 2 : Off
MTR FAN SOLETC PickUp Test 1 : On, 2 : Off

Fan Test 1 : On, 2 : Off
Manual Clt Test 1 : On, 2 : Off

PTL Test 1 : On, 2 : Off
ENGINE TEST LSU Motor Test 1 : On, 2 : Off
LSU TEST LSU Hsync Test 1 : On, 2 : Off

LD Test 1 : On, 2 : Off
ENGINE TEST Feed Sen Test Check : Check Start
SENSOR TEST Next : Next Sensor Check

Exit Sen Test Check : Check Start

Next : Next Sensor Check

Cover Sen Test Check : Check Start

Next : Next Sensor Check

Empty Sen Test Check : Check Start

Next : Next Sensor Check

Manual Sen Text Check : Check Start

Next : Next Sensor Check
ENGINE TEST Therm ADC 220~85 1 : On, 2 : Off (maintain the fusing temp. 65C~230C)
HEA TTEST
ENGINE TEST MHV Test 1 : On, 2 : Off (-1550V ± 50V)
HVPS TEST Dev Bias Test 1 : On, 2 : Off (-430V ± 20V)

THV EN/NEG Test 1 : On, 2 : Off (-1000V +300V/-150V)
THV ON (1300V) 1 : On, 2 : Off (+1300V ± 20V)
THV ADC 1300V 1 : On, 2 : Off
THV ADC 600V~3550V 1 : On, 2 : Off (Compare each ADC Value)

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Alignment & Adjustments

Samsung Electronics

Service

Manual

6.2 Paper Path

SCAN PART

PTL

P

I

C

K

/

R

PR

CR

DR

SR

TR FR

Empty Sensor

OPC

L S U

Fuser

Toner Cartridge

EXIT
Sensor

Feed

Sensor

MP Sensor

PTL

P

I

C

K

/

R

PR

CR

DR

SR

TR FR

Empty Sensor

OPC

L S U

Fuser

Toner Cartridge

EXIT
Sensor

Feed

Sensor

MP Sensor

PTL

P

I

C

K

/

R

PR

CR

DR

SR

TR FR

Empty Sensor

OPC

L S U

Fuser

Toner Cartridge

EXIT
Sensor

Feed

Sensor

MP Sensor

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)

<Jam0> <Jam1> <Jam2>

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Samsung Electronics

Alignment & Adjustments

Service

Manual

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 the jammed paper out gently and slowly. Follow the steps on the next pages to clear the jam.

Message Location of Jam

PAPER JAM 0 OPEN/CLOSE DOOR In the paper tray

PAPER JAM 1 OPEN/CLOSE DOOR In the paper exit area

PAPER JAM 2 CHECK INSIDE In the fuser area or around the toner cartridge

BYPASS JAM In the manual feeder

1 Open and close the front cover. The jammed paper

is automatically ejected from the machine. If the

paper is not ejected continue to step 2.
2 Pull the paper tray open.
3 Remove the jammed paper by gently pulling it

straight out.

If there is any resistance and the paper does not

move when you pull or if you cannot see the paper

in this area, skip to the fuser area around the toner

cartridge. See page 6-5

4 Insert the paper tray into the machine until it snaps

into place.

5 Open and close the front cover to resume printing.

6.3.1 In the Paper Tray

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Alignment & Adjustments

Samsung Electronics

Service

Manual

1 Open and close the front cover. The jammed paper

is automatically ejected from the machine. If the
paper is not ejected continue to step 2.

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

Skip to step 9.
If you cannot see the jammed paper in the front
output tray, continue to step 3.

3 Open the jam cover by lifting the front edge of the

scanner unit. The support lever will automatically
pop up.

4 Pull the paper out gently.

5 Close the jam cover by pushing the support tab to

the left and hold it down whilst lowering the cover
carefully until the cover fully down, this will hold
down the tab.
If there is any resistance and the paper does not
move when you pull or if you cannot see the paper
in the jam cover, continue to step 6.

6 Open the rear cover.
7 Remove the jammed paper by gently pulling it

straight out.

8 Close the rear cover.
9 Open and close the front cover to resume printing.

6.3.2 In the Paper Exit Area

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Samsung Electronics

Alignment & Adjustments

Service

Manual

NOTE: The fuser area is hot. T ake care when removing

paper from the machine.

1 Open the front cover and lightly push down on the

cartridge then pull to take it out.

2 Remove the jammed paper by gently pulling it

straight out.

3 Replace the toner cartridge and close the front

cover.
Printing automatically resumes.

6.3.3 In the Fuser Area or Around the Toner Cartridge

“Bypass Jam” appears on the display when you try to print using the manual feeder and the machine does not detect
paper, due to no paper or improper paper loading.

The error message may also occur when the paper is not properly fed into the machine through the manual feeder.
In that case, pull the paper out of the machine.

6.3.4 In the Manual Feeder

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Alignment & Adjustments

Samsung Electronics

Service

Manual

6.4 Printing the System Data List

Your machine can print the system data report which shows the status of the user-selectable options. You may print this
list to confirm your changes after changing any settings.

To print the system data list:
1 Press Menu/Exit until "Report" appears on the top line of the display.

"System Data" appears on the bottom line.

2 Press Start/Enter.

The system data list prints out.

6.5 Clearing the Memory

You can selectively clear information stored in your machine’s memory.
1 Press Menu/Exit on the control panel until "Maintenance" appears on the top line of the display.
2 Press the scroll button ( < or > ) until you see "Clear Settings" on the bottom line and press Start/Enter .

The first available menu item, “Paper Setting” displays on the bottom line.

3 Press the scroll button ( < or > ) until you see the item you want to clear.

• Paper Setting: Restores all of the Paper Setting options to the factory default.

• Copy Setup: Restores all of the Copy Setup options to the factory default.

• All Settings: Resets all of your settings to the factory default.

• Machine Setup: Resets all of the system settings, such as the display language and save modes, to the factory

default.
4 Press Start/Enter. The selected memory is cleared and the display asks you to continue clearing the next item.
5 To clear another item, press Start/Enter and repeat steps 3 and 4. Or, to return to Standby mode, press Stop/Clear.

6.6 Clearing the Drum

If there are streaks or spots on your print, the OPC drum of the cartridge may require cleaning.
1 Before carrying out the cleaning procedure, make sure that paper is loaded in the machine.
2 Press Menu/Exit on the control panel until "Maintenance" appears on the top line of the display.

The first available menu item, "Clean Drum", displays on the bottom line.
3 Press Start/Enter.
4 When the display asks you to confirm your selection, press Start/Enter .

The machine prints a cleaning page. Toner particles on the drum surface are affixed to the paper.
5 If the problem remains, repeat steps 1 through 4.

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Samsung Electronics

Alignment & Adjustments

Service

Manual

6-7

Samsung Electronics

Service

Manual

COMPONENT REPLACEMENT CYCLE

Pick-up Roller 60,000 Pages

Paepr Feeding Roller(Friction Pad) 60,000 Pages

Transfer Roller 60,000 Pages

Fuser 60,000 Pages

Toner Cartridge Original 1,000 Pages Replacement 3,000 Pages

6.7 Consumables and Replacement Parts

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.

LCD Meaning Solutions

Door Open

[JAM 1] or
[No Cartridge]

Low Heat Error
Open Heat Error
[Over Heat]
[LSU Error]

No Paper
[Add Paper]

Paper Jam 0
Open/Close Door

Paper Jam 1
Open/Close Door

Paper Jam 2
Check Inside

The front or rear cover is not securely
latched.

The toner cartrige is not installed.

There is a problem in the fuser unit.

A problem has occurred in the LSU
(Laser Scanning Unit).

The paper tray has run out of paper.

Paper has jammed in the feeding area of
the paper tray.

• Paper has jammed in the fuser area.

• A paper jam has occurred in the manual

feeder or the machine detects non­feeding from the manual feeder.

Paper has jammed in the paper exit area.

Close the cover until it locks into place.

Install the toner cartridge.

Unplug the power cord and plug it back in.
(Tech Mode Reference)

Unplug the power cord and plug it back in.
(Tech Mode Reference)

Load paper in the paper tray.

Clear the jam.

• Clear the jam.

• Clear the jam.

Clear the jam.

6.8 The LCD Status Display by Each Error

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Alignment & Adjustments

Samsung Electronics

Service

Manual

6.9 Periodic Defective Image

If a mark or other printing defect occurs at regular intervals down the page it may be caused by a damaged or
contaminated roller. Measure the repetition interval and refer to the table below to identify the roller concerned.

No Roller Defective image Typical defect

1 OPC Drum 75.5mm white spot on black image or black spot
2 Charge Roller 37.7mm black spot
3 Supply Roller 47.8mm light or dark horizontal image band
4 Developing Roller 35.2mm horizontal image band
5 Transfer Roller 45.3mm image ghost
6 Heat Roller 57.1mm Black spot and image ghost
7 Pressure Roller 59.7mm black spot on the backside

PTL

L S U

Fuser

Toner Cartridge

1

2

3

7

6

5

4

MP Sensor

1
2
3
4

OPC Drum

Charge Roller

Supply Roller

Developing Roller

5
6
7

Tramsfer Roller

Heat Roller

Pressure Roller

SCAN PART

<Rollers Layout>