Scanned-Image Problems; Defective Images; Troubleshooting From Image Defect - Brother HL-J6000DW Service Manual

4.8

Scanned-image Problems

4.8.1 Defective images

Light
Horizontal streaks
Entire image is
distorted or
deformed

4.8.2 Troubleshooting from image defect

■ Light
Step
1 White level correction data
failure
2 First side or second side CIS
unit defective
3 Main PCB defective
Scanning position failure
White horizontal
Image is stretched
Fig. 2-12
< User Check >
- Check if the contrast is set to "Light."
- Clean document cover glass or ADF glass.
- Clean the document pressure bar.
Cause
2-84
Dark
Colored over the whole page
streaks
Shadows when
scanning by
All black
document scanner
Solution
Carry out maintenance 55.
Replace the first side or second side CIS unit.
Replace the main PCB.
Completely blank
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