Paper Jam - Brother DCP-L8400CDN Service Manual

4.11.3 Paper jam

■
Paper jam in the ADF cover
< User Check >
- Check whether the document is thinner or thicker than the specifications.
- Check whether the document is smaller or larger than the specifications.
- Check whether the ADF cover is properly closed.
- Check whether the number of loaded documents exceed the specified number.
Step
1
2
3
4
5
6
7
8
9
10
Cause
Foreign object inside the area
around ADF cover
Coming off of second side
document scanning position
actuator
Connection failure of the
second side document
scanning position sensor PCB
harness
Coming off of document pinch
roller
Second side CIS glass
installation failure
Second side document hold
installation failure
Document feed roller worn out
Second side document
scanning position sensor
failure
ADF drive gear damaged
Main PCB failure
Remove the foreign object.
Re-assemble the second side document
scanning position actuator.
Reconnect the second side document
scanning position sensor PCB harness.
Re-assemble the document pinch roller.
Re-assemble the second side CIS glass.
Re-assemble the second side document
hold.
Replace the document feed roller ASSY2.
Replace the second side document scanning
position sensor PCB ASSY.
Replace the ADF unit.
Replace the main PCB ASSY.
2-124
Remedy
Confidential