Samsung SCX 4200-XAX Alignment & Adjustment

Alignment and Adjustmens

44. 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.

4.1 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.

4.1.1 To enter the Engine Test Mode

To enter the Engine Test mode

Press “ Menu -> Copies -> -> Menu -> ” 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.

4.1.2Diagnostic

Main Menu	Engine test		Remark
ENGINE TEST	Motor Test	1	: On, 2 : Off
MTR FAN SOL ETC	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)
HEAT TEST
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 and Adjustmens

4.2 Paper Path

SCAN PART

Paper Input (Cassette)	Paper Empty Sensor (Manual)
Paper Input (Manual Feeder)	Paper Empty Sensor (Cassette)
Paper Out (Face Down)	Paper Feeding Sensor
Paper Out (Face Up)	Paper Exit Sensor

SCAN PART

SCAN PART

SCAN PART

<Jam0>

<Jam1>

<Jam2>

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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Alignment and Adjustmens

4.3 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.

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

To avoid tearing the paper, pull the jammed paper out gently and slowly. Follow the steps on the next pages to clear the jam.

4.3.1 In the Paper Tray

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.

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Alignment and Adjustmens

4.3.2 In the Paper Exit Area

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.

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.

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.

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