Brother MFC640CW - 1 ] ADF Mechanism; Possible Component Defects and Resulting Problems

9-41 Confidential
9.2.6 Possible component defects and resulting problems
This section lists possible component defects and what happens due to them. It also describes what
happens if the necessary adjustments or data settings into the memories is not made.
[ 1 ] ADF mechanism
Defective component Result Error codes
ADF motor - Document will not be able to be fed. ---
Document feed roller - Documents will jam.
- Documents will skew.
- Documents will not be able to be fed.
A2, A3
Separation rubber - Two or more sheets of documents will be fed at
once.
---
Document front
sensor actuator
- Document draw-in operation will not start even
though documents have been set.
A3
Document rear
sensor actuator
- Document draw-in operation will not start even
though documents have been set.
- Document draw-in operation will continue even
though all documents have been fed into the
machine.
A2, A3