Document Becomes Wrinkled; Document Size Is Not Detected Correctly - Brother DCP-7090 Service Manual

 Paper jam in the paper eject section of the ADF
<User Check>
• Check that the thickness of the document is 64 to 105 g/m
Step
1
2
3
4

4.11.4 Document becomes wrinkled

<User Check>
• Check that the document is not curled.
• Check that the document guide is adjusted to suit the document size.
Step
1
2

4.11.5 Document size is not detected correctly

<User Check>
• Check that the document size is within the standard.
Step
1
2
3
Cause
Foreign object in the ADF
document eject path
Document pinch roller coming
off
Abrasion of document eject
roller
Main PCB failure
Cause
Abrasion of document
separate roller
Abrasion of document feed
roller
Cause
Document scanning position
actuator caught in some
sections of the machine
ADF motor failure
Main PCB failure
2
.
Remove the foreign object.
Reattach the document pinch roller.
Replace the ADF unit.
Replace the main PCB ASSY.
Replace the document separate roller ASSY.
Replace the ADF unit.
Reattach the document scanning position
actuator.
Replace the ADF unit.
Replace the main PCB ASSY.
2-107
Remedy
Remedy
Remedy
Confidential