(6) Toner offset

Feeding direction

Toner offset (Shadow image appears approx. 195 mm behind the high density image.)

Black solid

A p p r o x . 195mm

Shadow image

Cause/Defect area

Step

Check items

Measures

Remarks

Density

1

Is density too high?

Perform automatic adjustment of

 

 

 

 

gamma correction.

 

Fuser unit

2

Is fuser roller pressure proper?

Check pressure removal parts and

 

 

 

 

pressure mechanism.

 

 

3

Is thermostat contact good?

Establish contact.

 

 

4

Is there scratch on the fuser roller

Replace fuser roller.

 

 

 

surface?

 

 

 

5

Did fuser roller life end?

Replace fuser roller.

 

 

6

Is fuser roller temperature proper?

Check control circuit.

 

Paper

7

Check paper thickness and its mode.

Select proper mode.

 

 

8

Is non-recommended paper used?

Advise to use recommended paper.

 

Developer material

9

Is specified developer used?

Use specified developer and toner.

 

Scanner

10

Are mirrors or original glass

Clean them.

 

 

 

or lens filter dirty?

 

 

Printer section

11

Check printer image.

Check test print image (04-231).

See next steps

 

 

 

 

12 and 13 if

 

 

 

 

defect occurs.

Printer density error *

12

Is printer density too high?

Perform image quality control forced

Repeat a few

 

 

 

perfoming (05-878).

times if

 

 

 

Check test print image (04-231).

necessary.

Image quality control

13

Is the control activated?

Check image quality control related codes.

 

 

 

 

 

 

*When adjusting printer section, perform "image quality control forced performing" and then "automatic adjustment of gamma correction".

FC-22 TROUBLESHOOTING

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January 2000 © TOSHIBA TEC

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Image 188
Toshiba FC-22 manual Toner offset Feeding direction