12.SCANNING IMAGE DEFECT TROUBLESHOOTING

12.1 Image Defect Examples

Light

 

 

Faulty registration

 

Dark

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Completely blank

Vertical streaks

White vertical

 

 

streaks

 

Fig. 3-11

 

12.2 Troubleshooting Image Defect

Image defect related problems are end user recoverable if following the User Check items. If the same problem occurs, follow each procedure in the order of the number described in the Step column in the tables below.

■Light on the page

<User Check>

- Check whether the setting of the contrast does not become light.

Step

Cause

Check

Result

Remedy

 

 

 

 

 

 

White level data

Is the problem solved by

 

Perform the acquisition of

1

malfunction

performing the

Yes

white level data. (Function

 

acquisition of white level

code 55)

 

 

 

 

 

data. (Function code 55)

 

 

 

 

 

 

 

2

CCD unit failure

Is the problem solved by

Yes

Replace the CCD unit.

 

replacing the CCD unit.

 

 

 

 

 

 

 

 

 

 

3

Main PCB failure

Is the problem solved by

Yes

Replace the main PCB.

 

replacing the main PCB.

 

 

 

 

 

 

 

 

 

 

3-77

Confidential