Brother DCP-J752DW

2-78
Confidential
4.8 Scanned-image Problems
4.8.1 Defective images
4.8.2 Scanned-image Problems
■ The entire image is light.
<User Check>
- Check if the contrast is set to "Light".
- Clean the document cover glass or ADF glass.
- Clean the document pressure bar.
Step Cause Solution
1 White level correction data failure Carry out maintenance 55.
2 CIS unit defective Replace the CIS unit.
3 Main PCB defective Replace the main PCB ASSY.
Scanning position failure
Completely
blank
Vertical streaks
Shades in the entire image Entire image
is distorted
The entire
image is light.
Images are
dark
White vertical
streaks