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7

Alignment & Adjustments

7. 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.

7.1. Paper path and Paper jam

7.1.1 Paper path

Exit Sensor

EXIT Ass’y

Duplex Path

Fuser Unit

ITB

DEV. - Black

DEV. - Yellow

DUPLEX

Transfer Roller

OPC

DEV. - Magenta

Feed Sensor

DEV. - Cyan

MPF Path

MPT Path

Pick-up

Roller

Feeder

FCT

CASSETTE

Paper Empty Sensor(MPT)

FCT Path

SCT

SCF

SCF Path

SCT Path

Paper Empty Sensor(SCT)

Paper Empty Sensor(FCT)

Paper Pick-Up Roller

Service Manual

7-1

Samsung Electronics

EXIT Unit

Fuser Unit

DEV. - Black

DEV. - Yellow

DUPLEX

DEV. - Magenta

DEV. - Cyan

Feeder

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Alignment & Adjustments

7.1.2 Jams

1) Jam0 (Jam in feed area)

* After a page was picked up, it was not fed.

* Paper does not reach the feed sensor in a

certain time.

* Feed sensor is faulty and does not detect

paper.

- FCF pickup error: When a paper is not

picked up in the 1st cassette.

- SCF pickup error: When a paper is not

picked up in the 2nd cassette.

Feed Sensor

Pick-up

Roller

Paper Empty Sensor

2) Jam1 (Jam inside printer)

* After the leading edge of the paper has

reached the feed sensor, the feed sensor

doesn't turn off (fails to detect the trailing edge

of the paper) in a certain time

* After the leading edge of the paper has

passed the feed sensor, it doesn't reach the

exit sensor in a certain time.

* Exit senor is faulty and does not detect paper.

Exit Sensor

Feed Sensor

3) Jam2 (Jam in exit area)

* After the leading edge of the paper has

passed, the trailing edge of the paper has not

passed the exit sensor within a certain time

* The paper drive motor has been driving for

longer than the time needed for the longest

paper size and the exit sensor is not off.

Exit Sensor

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Service Manual

Samsung Electronics

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Alignment & Adjustments

4) Jam duplex (Jam in duplex area)

* Jam duplex occurs when printing the reverse

side of the paper during duplex printing. After

printing the front side the duplex solenoid must

operate in order to feed the paper back into the

duplex path. If the solenoid fails paper may be

stuck in the exit roller and is not fully elected

into the exit tray

Exit Sensor

Feed Sensor

* If the duplex solenoid operates paper is fed

back into the machine. If the leading edge of

the paper does not reach the feed sensor in a

certain time then Jam Duplex occurs.

- This can be cause by paper being jammed

in the duplex path area.

5) Jam MPF

* Paper could not be picked up from the MPF tray.

* After pickup, a paper has been fed, but it

doesn't reach the feed sensor in a certain time.

* Feed sensor is faulty and does not detect paper.

Feed Sensor

CASSETTE

SCF

SCF Path

MP Empty Sensor

Service Manual

7-3

Samsung Electronics

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Alignment & Adjustments

7.2 Jam Removal

When a jam occurs while printing a jam message is displayed on the control panel.

* Jam0 In Tray 1:

Paper jam in the main cassette.

* Jam0 In MP Tray:

Paper jam in the MP tray

* Jam0 Tray2:

Paper jam in the SCT (Second cassette tray)

* Jam Inside Printer:

Jam 1, Paper is jammed inside the printer.

* Jam In Exit Area:

Jam2, Paper is jammed in the exit area when ejecting paper.

* Jam In Duplex Path:

While duplex printing, paper is jammed in the duplex unit.

CAUTION: When removing jammed paper, always pull it firmly and evenly without any sudden jerks. If

at all possible, remove the paper as a single sheet. If the paper tears ensures ALL paper

fragments are removed. Any fragments left inside the machine will cause it to jam again.

7.2.1 Factors that cause paper to jam

- Too much paper is loaded in the cassette.

- Paper in not loaded correctly in the cassette.

- Duplex cover opened while printing.

- Cassette removed while printing.

- Incorrect thickness of paper used.

- Incorrect size of paper used.

- Cassette paper guides not correctly set (loose or too tight).

- Foreign object or other contamination of internal paper path and paper guide ribs.

- Badly damaged or folded leading or trailing edges of the paper.

7-4

Service Manual

Samsung Electronics

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Alignment & Adjustments

7.2.2 Tips for Avoiding Paper Jams

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

steps outlined below:

• Ensure that the adjustable guides are positioned correctly.

• Do not overload the tray. Ensure that the paper is below the paper capacity mark on the right

inside the tray.

7.2.3 Jam 0 In Tray 1

If paper is jammed in the paper feed area,'Jam0 In Tray1 ' appears on the display.

1. Using the handle open the right cover.

4. Pull the tray open. After you pull it all the way

out lift up the front part of the tray slightly to

release the tray from the machine.

2. Carefully remove the misfed paper in the

direction as shown.

5. Remove the jammed paper by gently pulling it

straight out.

3. Close the right cover .The printer resumes printing.

If there is any resistance, and the paper

does not move immediately when you pull,

stop pulling and go to step 4.

6. To replace the tray lower the rear edge, align it

to the slot and slide it into the printer.

7. Close the right cover .The printer resumes print-

ing.

Service Manual

7-5

Samsung Electronics

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