Brother MFC-7380

2-89
Confidential
4.12 Troubleshooting for Image Defects
4.12.1 Defect examples
Fig. 2-14
4.12.2 Troubleshooting according to image defect
 Light
<User Check>
- Check that the contrast setting is not too light.
- Clean the scanner glass or ADF glass.
- Clean the document hold.
Step Cause Remedy
1
Incorrect white level correction data Execute "Acquire white level data (function
code: 55)".
2
First or second side CIS unit failure Replace the first or second side CIS unit.
3
Main PCB failure Replace the main PCB ASSY.
Light (2-89) Faulty registration (2-90) Dark (2-90) Completely
blank (2-91)
All black
(2-91)
Vertical streaks (2-92) White streaks
(2-92)
Partially shaded
(2-93)
Fully tinged (2-93)