Document Feeding Problems; No Feeding; Double Feeding - Brother DCP-9055CDN Service Manual

3.9

Document Feeding Problems

3.9.1

No feeding

<User Check>
- Check if the document is inserted correctly to the depths.
- Check if the number of the documents complies with the specifications in the specification list.
Legal model: 50 sheets or less; A4 model: 35 sheets or less
- Check if the ADF cover is closed.
Step
1
2
3
4
5
6
7
3.9.2

Double feeding

<User Check>
- Check whether the document does not use the paper which is thinner than the specification.
- Fan out the documents so that they will not stick together, and then reload them in the ADF.
Step
1
Cause
Document front actuator
catching on some position
ADF open actuator catching
on some position
Harness connection failure of
ADF motor
Document front sensor or
ADF open sensor malfunstion
Separate roller failure
ADF motor failure
Main PCB failure
Cause
Separation rubber worn out
Correct the position of the document front
actuator.
Correct the position of the ADF open
actuator.
Check the harness connection of the
ADF motor and reconnect it.
Check the sensor performance following the
procedure described in
If any problem occurs, replace the document
front/ADF open sensor PCB ASSY.
Replace the separate roller ASSY.
Replace the ADF motor.
Replace the main PCB ASSY.
Replace the separation rubber holder ASSY.
2-127
Remedy
"Function code 32".
Remedy
Confidential