Brother MFC-7390

2-105
Confidential
4.11 Troubleshooting for Document Feeding Problems
4.11.1No document is fed
<User Check>
• Set the document properly and check that the display on the LCD changes.
• Check that the number of paper set has not exceeded the upper limit in the document tray.
• Check that the ADF cover is closed correctly.
4.11.2Multiple documents are fed
<User Check>
• Check that the thickness of the document is 64 to 105 g/m
2
.
• Check that the number of paper set has not exceeded the upper limit in the document tray.
Step Cause Remedy
1
Document detection actuator
coming off
Reattach the document detection actuator.
2
Connection failure of the ADF
motor harness
Reconnect the ADF motor harness.
3
Boss to push the ADF cover
sensor of the ADF cover
Replace the ADF cover ASSY.
4
Document separate roller
failure
Replace the document separate roller ASSY.
5 Damaged ADF drive gear Replace the ADF unit.
6 Main PCB failure Replace the main PCB ASSY.
Step Cause Remedy
1
Abrasion of ADF separation
pad
Replace the ADF separation pad.