Troubleshooting

4-5-4 Signs and Measures at Poor toner cartridge

 

 

 

Fault

Signs

Cause & Check

Solution

 

 

 

 

 

 

 

 

 

Light image and

• The printed image

1. If the image is light or unclean

1. All of 1, 2, 3 above-

 

partially blank

is light or unclean

and untidy printed image -

If it become better by shaking,

 

image

and untidy.

Shake the developer and

replace with a new developer

 

(The life is ended.)

 

then recheck.

after 50-100 sheets in the clos-

 

 

 

 

 

• Some part of the

(1)NG: Check the weight of the

ing state of the life span.

 

 

 

Digital Printer

 

image is not print-

developer

 

 

 

 

 

ed.

(2)OK: Lack of toner, so the life

 

 

 

 

Digital Printer

 

 

 

 

 

 

 

is nearly closed.

 

 

 

 

Digital Printer

 

 

 

 

 

 

 

• Periodically a noise

2. Some part of image is not

2. In case of 2-

 

 

 

Digital Printer

 

 

 

 

 

as "tick tick" occurs.

printed - Shake the develop-

If it becomes better after clean-

 

 

 

Digital Printer

 

 

er and then recheck.

ing the LSU window, then the

 

 

 

 

 

 

(1)NG: Check the weight of the

developer is normal.

 

 

 

 

 

 

developer and clean

(Because of foreign substance

 

 

 

 

 

 

the LSU window with a

on the LSU window, the image

 

 

 

 

 

 

cotton swab, then

has not been printed partly.)

 

 

 

 

 

 

recheck.

 

 

 

 

 

 

 

(2)OK: Lack of toner, so the life

 

 

 

 

 

 

 

is nearly closed.

 

 

 

 

 

 

 

3. Periodically a noise as "tick

3. In case of 3-

 

 

 

 

 

 

tick" occurs - Measure the

If the cycle of noise is about 2

 

 

 

 

 

 

cycle and the weight of the

seconds, the toner inside the

 

 

 

 

 

 

developer.

developer has been nearly

 

 

 

 

 

 

 

exhausted.( Purchase and

 

 

 

 

 

 

 

replace with a new developer

 

 

 

 

 

 

 

after using about 200 sheets at

 

 

 

 

 

 

 

the point of occurrence)

 

 

 

 

 

 

4. White vertical stripes on the

4. In case of 3-

 

 

 

 

 

 

whole screen or partly :

This is a phenomenon caused

 

 

 

 

 

 

Check the weight of the

by lack of toner, so replace with

 

 

 

 

 

 

developer.

a new developer.

 

 

 

 

 

 

Toner

• Toner is fallen on

1. Toner is fallen on the paper

1. If both ends of the OPC drum

 

Contamination

the papers periodi-

periodically.

are contaminated with toner:

 

 

 

 

 

cally.

(1)Check the cycle of the

Check the life of the developer.

 

 

 

 

 

 

falling of the toner.

 

 

 

 

 

 

• Contaminated with

(2)Check the appearance of

 

 

 

 

 

 

toner on prints part-

both ends of the developer

 

 

 

 

 

 

ly or over the whole

OPC drum.

 

 

 

 

 

 

surface.

 

 

 

 

 

 

 

 

2.The center of the printed mat-

2. Check whether it could be recy-

 

 

 

 

 

 

ter is contaminated with toner.

cled.

 

 

 

 

 

 

(1)Check whether foreign sub-

 

 

 

 

 

 

 

stances or toner are stuck

 

 

 

 

 

 

 

to the terminal (contact

 

 

 

 

 

 

 

point) of the developer.

 

 

 

 

 

 

 

(2)Check whether the state of

 

 

 

 

 

 

 

the terminal assembly is

 

 

 

 

 

 

 

normal.

 

 

 

 

 

 

 

 

3. If it cannot be recycled:

 

 

 

 

 

 

 

Replace the developer.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Samsung Electronics

4-23

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Samsung ML-1651N Signs and Measures at Poor toner cartridge, Fault Signs Cause & Check Solution Light image, Image
Page 46 Page 48

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