Document Jam - Brother DCP-7080 Service Manual

4.11.3 Document jam

 Paper jam in the ADF cover
<User Check>
- Check that the paper used for the document is not thinner than 64 g/m
- Check that the paper used for the document is not shorter than 147.3 mm.
- Check that the number of paper set has not exceeded the upper limit in the paper tray.
- Check that the ADF cover is closed correctly.
Step
Foreign object inside the area
1
around ADF cover
First side document scanning
2
position actuator coming off
ADF cover actuator caught in some
3
sections of the machine
Document pinch roller coming off
4
Second side white bar coming off
5
Connection failure of first side
6 document scanning position sensor
PCB harness
Abrasion of document feed roller
7
First side document scanning
8
position sensor failure
ADF cover sensor failure
9
Main PCB failure
10
 Paper jam in the ADF
<User Check>
- Check that the paper used for the document is not thinner than 64 g/m
- Check that the paper used for the document is not longer than 900 mm (400 mm when
duplex scanning).
- Check that the document guide is adjusted to suit the document width.
Step
Foreign object inside the ADF
1
Second side document scanning
2
position actuator coming off
First side white bar coming off
3
Fed at an angle and jammed due to
4
abrasion of separation roller
Connection failure of second side
5 document scanning position sensor
PCB harness
Second side document scanning
6
position sensor failure
Main PCB failure
7
Cause
Remove foreign objects inside the area
around the ADF cover.
Reattach the first side document scanning
position actuator.
Reattach the ADF cover actuator.
Reattach the document pinch roller.
Reattach the second side white bar.
Check the connection of the first side
document scanning position sensor PCB
harness, and reconnect it if necessary.
Replace the document feed roller ASSY 1.
Replace the first side document scanning
position sensor PCB ASSY.
Replace the ADF cover/document detection
sensor PCB ASSY.
Replace the main PCB ASSY.
Cause
Remove foreign objects inside the ADF
Reattach the second side document
scanning position actuator.
Reattach the first side white bar.
Replace the separation roller ASSY.
Check the connection of the second side
document scanning position sensor PCB
harness, and reconnect it if necessary.
Replace the second side document scanning
position sensor PCB ASSY.
Replace the main PCB ASSY.
2-87
2
.
Remedy
2
.
Remedy
Confidential