Brother MFC-J6935DW - Document Size Not Correctly Detected; Wrinkles on Documents

Confidential
2-83
4.7.4 Wrinkles on documents
< User Check >
- Check that the document guide is correctly set to the document size.
- Check that documents are not curled.
- Check that document is loaded all the way to the end correctly in the document tray.
- Check that the number of documents loaded in the document tray is within specified
volume.
4.7.5 Document size not correctly detected
< User Check >
- Check that documents are within specified size.
* D
ocument size sensor model only
Step
Cause Solution
1 Document separation roller
worn out
Replace the document separation roller ASSY.
2 Each paper feed roller worn
out
Replace the ADF unit.
Step
Cause Solution
1 Document scanning position
actuator caught on the
surrounding parts
Set the document scanning position actuator
into place.
2 Document scanning position
sensor defective
Replace the document scanning position
sensor PCB ASSY.
3* ADF document size sensor
defective
Replace the ADF document support.
4* FB document size sensor
defective
Replace the document scanner unit.
5 Main PCB defective Replace the main PCB.