Troubleshooting For Image Defects; Defect Examples; Troubleshooting According To Image Defect - Brother ADS-2600W Service Manual

4.2

Troubleshooting for Image Defects

4.2.1 Defect examples

Light
Completely
blank
Hue defect

4.2.2 Troubleshooting according to image defect

 Light
Step
Incorrect white level correction data Execute the maintenance mode function
1
Dirty calibration sheet
2
First side or second side CIS unit
3
failure
4 Main PCB failure
Faulty registration
Vertical streaks
Expanded image
Fig. 2-5
<User Check>
- Check that the contrast setting is not too light.
- Clean the CIS glass.
Cause
2-26
White vertical
streaks
Remedy
"Acquire white level data and set CIS scan
area".
Replace the calibration sheet with a new
one.
Replace the first side or second side CIS
unit.
Replace the main PCB ASSY.
Dark or
bluish white
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