Brother FAX-2820 Service Manual page 224

I-17
Black band
Possible cause
Step
Corona failure 1
Corona dirty 2
Check
Is the wire cleaner at its
home position?
Is the corona wire dirty?
9 -4 3
Remedy
Result
No Return the wire cleaner
to its home position.
Yes 1) Clean the corona
wire.
2) If the problem still
appears after
cleaning, replace the
drum unit.
Ground
contacts
(2)
(2)
Confidential