Possible Component Defects And Resulting Problems; 1 ] Adf Mechanism - Brother MFC640CW Service Manual

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
ADF motor
Document feed roller
Separation rubber
Document front
sensor actuator
Document rear
sensor actuator
- Document will not be able to be fed.
- Documents will jam.
- Documents will skew.
- Documents will not be able to be fed.
- Two or more sheets of documents will be fed at
once.
- Document draw-in operation will not start even
though documents have been set.
- 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.
9 - 4 1
Result Error codes
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A2, A3
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A3
A2, A3
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